Search Results

Search found 21759 results on 871 pages for 'int'.

Page 166/871 | < Previous Page | 162 163 164 165 166 167 168 169 170 171 172 173  | Next Page >

  • Invalid argument when calling linux splice()

    - by benny wallace
    Hi I wanted to try out the splice syscall. I have this function - it should copy content of one file to another: static void test_splice( int in, int out ) { int i = 0, rcvd = 0; int filedes[2]; off_t off = 0; if ( pipe( filedes ) < 0 ) { perror( "Kicha pipe" ); exit( EXIT_FAILURE ); } for ( i = 0; i < NUMLOOPS; ++i ) { if ( ( rcvd = splice( in, NULL, filedes[1], NULL, BUFSIZE, SPLICE_F_MORE | SPLICE_F_MOVE ) ) < 0 ) { perror( "splice" ); exit( EXIT_FAILURE ); } if ( splice( filedes[0], NULL, out, NULL, rcvd, SPLICE_F_MORE | SPLICE_F_MOVE ) < 0 ) { perror( "splice" ); exit( EXIT_FAILURE ); } } } The second call to splice in first iteration returns EINVAL ( invalid argument from perror ) everytime - what could be the reason?

    Read the article

  • Listview with alternating resources in Android

    - by Fran
    Hi! I have a ListView and an adapter that sets alternating background colors to the list items overwriting getView Method in my adapter. I want to go further and I would to set to each row a Resource background. I try in getView call the method setBackgroundResource: private int[] messages = new int[] {R.layout.message,R.layout.message2}; //... public View getView(int position, View convertView, ViewGroup parent) { View v = super.getView(position, convertView, parent); int MessagePos = position % messages.length; v.setBackgroundResource(messages[MessagePos]); return v;} But this not work, and I the message throws by exception is File res/layout/message.xml from drawable resource ID #0x7f030004 Any ideas? Thanks!

    Read the article

  • Application crashing on getting updated information from database using timer and storing it on loca

    - by Amit Battan
    In our multi - user application we are continuously interacting with database. We have a common class through which we are sending POST queries to database and obtaining xml files in return. We are using delegates of NSXMLParser to parse the obtained file. The problem with us is we are facing many crashes in it generally when application is idle and changed data in database is being fetched in background through timer which is invoked after every few seconds. We have also dealt with error handling through try and catch but it proves to be of no use in this case and mostly application crashes with following error : Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000020 Strange thing is that many times the fetching of updated data at background works very fine, same methods being successfully executed under similar conditions but suddenly it crashes on one of them. The codes we are using is as follows: // we are using timer in this way: chkOnlineUser=[NSTimer scheduledTimerWithTimeInterval:15 target:mmObject selector:@selector(threadOnlineUser) userInfo:NULL repeats:YES]; // this method being called in timer -(void)threadOnlineUser{//HeartBeat in Thread [NSThread detachNewThreadSelector:@selector(onlineUserRefresh) toTarget:self withObject:nil]; } // this performs actual updation -(void)onlineUserRefresh{ NSAutoreleasePool *pool =[[NSAutoreleasePool alloc]init]; @try{ if(chkTimer==1){ return; } chkTimer=1; if([allUserArray count]==0){ [user parseXMLFileUser:@"all" andFlag:3]; [allUserArray removeAllObjects]; [allUserArray addObjectsFromArray:[user users]]; } [objHeartBeat parseXMLFile:[loginID intValue] timeOut:10]; NSMutableDictionary *tDictOL=[[NSMutableDictionary alloc] init]; tDictOL=[objHeartBeat onLineList]; NSArray *tArray=[[NSArray alloc] init]; tArray=[[tDictOL objectForKey:@"onlineuser"] componentsSeparatedByString:@","]; [loginUserArray removeAllObjects]; for(int l=0;l less than [tArray count] ;l++){ int t;//=[[tArray objectAtIndex:l] intValue]; if([[allUserArray valueForKey:@"Id"] containsObject:[tArray objectAtIndex:l]]){ t = [[allUserArray valueForKey:@"Id"] indexOfObject:[tArray objectAtIndex:l]]; [loginUserArray addObject:[allUserArray objectAtIndex:t]]; } } [onlineTable reloadData]; [logInUserPopUp removeAllItems]; if([loginUserArray count]==1){ [labelLoginUser setStringValue:@"Only you are online"]; [logInUserPopUp setEnabled:YES]; }else{ [labelLoginUser setStringValue:[NSString stringWithFormat:@" %d users online",[loginUserArray count]]]; [logInUserPopUp setEnabled:YES]; } NSMenu *menu = [[NSMenu alloc] initWithTitle:@"menu"]; NSMenuItem *itemOne = [[NSMenuItem alloc] initWithTitle:@"" action:NULL keyEquivalent:@""]; [menu addItem:itemOne]; for(int l=0;l less than [loginUserArray count];l++){ NSString *tempStr= [NSString stringWithFormat:@"%@ %@",[[[loginUserArray objectAtIndex:l] objectForKey:@"user_fname"] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]],[[[loginUserArray objectAtIndex:l] objectForKey:@"user_lname"] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]]; if(![tempStr isEqualToString:@""]){ NSMenuItem *itemOne = [[NSMenuItem alloc] initWithTitle:tempStr action:NULL keyEquivalent:@""]; [menu addItem:itemOne]; }else if(l==0){ NSMenuItem *itemOne = [[NSMenuItem alloc] initWithTitle:tempStr action:NULL keyEquivalent:@""]; [menu addItem:itemOne]; } } [logInUserPopUp setMenu:menu]; if([lastUpdateTime isEqualToString:@""]){ }else { [self fetchUpdatedInfo:lastUpdateTime]; [self fetchUpdatedGroup:lastUpdateTime];// function same as fetchUpdatedInfo [avObject fetchUpdatedInfo:lastUpdateTime];// function same as fetchUpdatedInfo [esTVObject fetchUpdatedInfo:lastUpdateTime];// function same as fetchUpdatedInfo } lastUpdateTime=[[tDictOL objectForKey:@"lastServerTime"] copy]; } @catch (NSException * e) { [queryByPost insertException:@"MainModule" inFun:@"onlineUserRefresh" excp:[e description] userId:[loginID intValue]]; NSRunAlertPanel(@"Error Panel", @"Main Module- onlineUserRefresh....%@", @"OK", nil, nil,e); } @finally { NSLog(@"Internal Update Before Bye"); chkTimer=0; NSLog(@"Internal Update Bye");// Some time application crashes after this log // Some time application crahses after "Internal Update Bye" log } } // The method which we are using to obtain updated data is of following form: -(void)fetchUpdatedInfo:(NSString *)UpdTime{ @try { if(initAfterLoginComplete==0){ return; } [user parseXMLFileUser:UpdTime andFlag:[loginID intValue]]; [tempUserUpdatedArray removeAllObjects]; [tempUserUpdatedArray addObjectsFromArray:[user users]]; if([tempUserUpdatedArray count]0){ if([contactsView isHidden]){ [topContactImg setImage:[NSImage imageNamed:@"btn_contacts_off_red.png"]]; }else { [topContactImg setImage:[NSImage imageNamed:@"btn_contacts_red.png"]]; } }else { return; } int chkprof=0; for(int l=0;l less than [tempUserUpdatedArray count];l++){ NSArray *tempArr1 = [allUserArray valueForKey:@"Id"]; int s; if([[[tempUserUpdatedArray objectAtIndex:l] objectForKey:@"Id"] intValue]==profile_Id){ chkprof=1; } if([tempArr1 containsObject:[[tempUserUpdatedArray objectAtIndex:l] objectForKey:@"Id"]]){ s = [tempArr1 indexOfObject:[[tempUserUpdatedArray objectAtIndex:l] objectForKey:@"Id"]]; [allUserArray replaceObjectAtIndex:s withObject:[tempUserUpdatedArray objectAtIndex:l]]; }else { [allUserArray addObject:[tempUserUpdatedArray objectAtIndex:l]]; } NSArray *tempArr2 = [tempUser valueForKey:@"Id"]; if([tempArr2 containsObject:[[tempUserUpdatedArray objectAtIndex:l] objectForKey:@"Id"]]){ s = [tempArr2 indexOfObject:[[tempUserUpdatedArray objectAtIndex:l] objectForKey:@"Id"]]; [tempUser replaceObjectAtIndex:s withObject:[tempUserUpdatedArray objectAtIndex:l]]; }else { [tempUser addObject:[tempUserUpdatedArray objectAtIndex:l]]; } } NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"user_fname" ascending:YES]; [tempUser sortUsingDescriptors:[NSMutableArray arrayWithObject:sortDescriptor]]; [userListTableView reloadData]; [groupsArray removeAllObjects]; for(int z=0;z less than [tempGroups count];z++){ NSMutableArray *tempMArr=[[NSMutableArray alloc] init]; for(int l=0;l less than [allUserArray count];l++){ if([[[allUserArray objectAtIndex:l] objectForKey:@"GroupId"] intValue]==[[[tempGroups objectAtIndex:z] objectForKey:@"group_id"] intValue]){ [tempMArr addObject:[allUserArray objectAtIndex:l]]; } } [groupsArray insertObject:tempMArr atIndex:z]; [tempMArr release]; tempMArr= nil; } for(int n=0;n less than [tempGroups count];n++){ [[groupsArray objectAtIndex:n] addObject:[tempGroups objectAtIndex:n]]; } [groupsListOV reloadData]; if(chkprof==1){ [self profileShow:profile_Id]; }else { } [self selectUserInTable:0]; }@catch (NSException * e) { NSRunAlertPanel(@"Error Panel", @"%@", @"OK", nil, nil,e); } } // The method which we are using to frame select query and parse obtained data is: -(void)parseXMLForUser:(int)UId stringVar:(NSString*)stringVar{ @try{ if(queryByPost) [queryByPost release]; queryByPost=[QueryByPost new]; // common class used to invoke method to send request via POST method //obtaining data for xml parsing NSString *query=[NSString stringWithFormat:@"Select * from userinfo update_time = '%@' AND NOT owner_id ='%d' ",stringVar,UId]; NSData *obtainedData=[queryByPost executeQuery:query WithAction:@"query"]; // method invoked to perform post query if(obtainedData==nil){ // data not obtained so return return; } // initializing dictionary to be obtained after parsing if(obtainedDictionary) [obtainedDictionary release]; obtainedDictionary=[NSMutableDictionary new]; // xml parsing if (updatedDataParser) // airportsListParser is an NSXMLParser instance variable [updatedDataParser release]; updatedDataParser = [[NSXMLParser alloc] initWithData:obtainedData]; [updatedDataParser setDelegate:self]; [updatedDataParser setShouldResolveExternalEntities:YES]; BOOL success = [updatedDataParser parse]; } @catch (NSException *e) { NSLog(@"wtihin parseXMLForUser- parseXMLForUser:stringVar: - %@",[e description]); } } //The method which will attempt to interact 4 times with server if interaction with it is found to be unsuccessful , is of following form: -(NSData*)executeQuery:(NSString*)query WithAction:(NSString*)doAction{ NSLog(@"within ExecuteQuery:WithAction: Query is: %@ and Action is: %@",query,doAction); NSString *returnResult; @try { NSString *returnResult; NSMutableURLRequest *postRequest; NSError *error; NSData *searchData; NSHTTPURLResponse *response; postRequest=[self directMySQLQuery:query WithAction:doAction]; // this method sends actual POST request NSLog(@"after directMYSQL in QueryByPost- performQuery... ErrorLogMsg"); searchData = [NSURLConnection sendSynchronousRequest:postRequest returningResponse:&response error:&error]; returnResult = [[NSString alloc] initWithData:searchData encoding:NSASCIIStringEncoding]; NSString *resultToBeCompared=[returnResult stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; NSLog(@"result obtained - %@/ resultToBeCompared - %@",returnResult,resultToBeCompared); if(![resultToBeCompared isEqualToString:@""]){ }else { sleep(10); postRequest=[self directMySQLQuery:query WithAction:doAction]; searchData = [NSURLConnection sendSynchronousRequest:postRequest returningResponse:&response error:&error]; if(![resultToBeCompared isEqualToString:@""]){ }else { sleep(10); postRequest=[self directMySQLQuery:query WithAction:doAction]; searchData = [NSURLConnection sendSynchronousRequest:postRequest returningResponse:&response error:&error]; if(![resultToBeCompared isEqualToString:@""]){ }else { sleep(10); postRequest=[self directMySQLQuery:query WithAction:doAction]; searchData = [NSURLConnection sendSynchronousRequest:postRequest returningResponse:&response error:&error]; if(![resultToBeCompared isEqualToString:@""]){ }else { sleep(10); postRequest=[self directMySQLQuery:query WithAction:doAction]; searchData = [NSURLConnection sendSynchronousRequest:postRequest returningResponse:&response error:&error]; if(![resultToBeCompared isEqualToString:@""]){ }else { return nil; } } } } } returnResult = [[NSString alloc] initWithData:searchData encoding:NSASCIIStringEncoding]; return searchData; } @catch (NSException * e) { NSLog(@"within QueryByPost , execurteQuery:WithAction - %@",[e description]); return nil; } } // The method which sends POST request to server , is of following form: -(NSMutableURLRequest *)directMySQLQuery:(NSString*)query WithAction:(NSString*)doAction{ @try{ NSLog(@"Query is: %@ and Action is: %@",query,doAction); // some pre initialization NSString *stringBoundary,*contentType; NSURL *cgiUrl ; NSMutableURLRequest *postRequest; NSMutableData *postBody; NSString *ans=@"434"; cgiUrl = [NSURL URLWithString:@"http://keysoftwareservices.com/API.php"]; postRequest = [NSMutableURLRequest requestWithURL:cgiUrl]; [postRequest setHTTPMethod:@"POST"]; stringBoundary = [NSString stringWithString:@"0000ABCQueryxxxxxx"]; contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", stringBoundary]; [postRequest addValue:contentType forHTTPHeaderField: @"Content-Type"]; //setting up the body: postBody = [NSMutableData data]; [postBody appendData:[[NSString stringWithFormat:@"\r\n\r\n--%@\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"code\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithString:ans] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"action\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithString:doAction] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"devmode\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithString:[[[NSBundle mainBundle] infoDictionary] objectForKey:@"devmode"]] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"q\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithString:query] dataUsingEncoding:NSUTF8StringEncoding]]; [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; [postRequest setHTTPBody:postBody]; NSLog(@"Direct My SQL ok");// Some time application crashes afte this log //Some time application crashes after "Direct My SQL ok" log return [postRequest mutableCopy]; }@catch (NSException * e) { NSLog(@"NSException %@",e); NSRunAlertPanel(@"Error Panel", @"Within QueryByPost- directMySQLQuery...%@", @"OK", nil, nil,e); return nil; } }

    Read the article

  • Function pointer demo

    - by AKN
    Hi, Check the below code void functionptrdemo() { typedef int *(funcPtr) (int,int); funcPtr ptr; ptr = add; //IS THIS CORRECT? (*ptr)(2,3); } In the place where I try to assign a function to function ptr with same function signature, it shows a compilation error as error C2659: '=' : function as left operand

    Read the article

  • Strcpy and malloc issues

    - by mrblippy
    Hi, i am having trouble getting a method relating to a linked list working, i get the errors: assignment makes pointer from integer without a cast and passing argument 1 of âstrcpyâ makes pointer from integer without a cast. i have tried to include all the relevant code, but let me know if you need more info. thanks. struct unit { char code[5]; char *name; node_ptr students; }; typedef struct node *node_ptr; struct node { int student_id; char *studentname; node_ptr next; }; void enrol_student(struct unit u[], int n) { int i, p; int student_id = 0; char code_to_enrol[7]; char buffer[100]; node_ptr studentslist; scanf("%s\n", code_to_enrol); for(i=0; i <= n; i++) { studentslist = u[i].students; if(strcmp(u[i].code ,code_to_enrol)<=0) { scanf("enter student details %d %s\n", &studentID, buffer); p = (char *) malloc (strlen(buffer)+1); strcpy(p, buffer); insert_in_order(student_id, buffer, studentslist); } } } void insert_in_order(int n, char *i, node_ptr list) { node_ptr before = list; node_ptr students = (node_ptr) malloc(sizeof(struct node)); students->ID = n; students->name = *i; while(before->next && (before->next->ID < n)) { before = before->next; } students->next = before->next; before->next = students; }

    Read the article

  • sql exception arithmetic overflow?

    - by MyHeadHurts
    In my program the user imports a date and it works whenever the year is in 2011 but if i try a date in 2010 i get this error which is weird [ SqlException (0x80131904): Arithmetic overflow error converting int to data type numeric.] System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +1950890 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4846875 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194 System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2392 System.Data.SqlClient.SqlDataReader.HasMoreRows() +157 System.Data.SqlClient.SqlDataReader.ReadInternal(Boolean setTimeout) +197 System.Data.SqlClient.SqlDataReader.Read() +9 System.Data.Common.DataAdapter.FillLoadDataRow(SchemaMapping mapping) +78 System.Data.Common.DataAdapter.FillFromReader(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue) +164 System.Data.Common.DataAdapter.Fill(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) +282 System.Data.Common.LoadAdapter.FillFromReader(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) +19 System.Data.DataTable.Load(IDataReader reader, LoadOption loadOption, FillErrorEventHandler errorHandler) +222 System.Data.DataTable.Load(IDataReader reader) +14 ( @YearToGet int, @current datetime, @y int, @search datetime ) AS SET @YearToGet = 2006; WITH Years AS ( SELECT DATEPART(year, GETDATE()) [Year] UNION ALL SELECT [Year]-1 FROM Years WHERE [Year]>@YearToGet ), q_00 as ( select DIVISION , DYYYY , sum(PARTY) as asofPAX , sum(InsAmount) as asofSales from dbo.B101BookingsDetails INNER JOIN Years ON B101BookingsDetails.DYYYY = Years.Year where Booked <= CONVERT(int, DateAdd(year, (Years.Year - @y), @search)) and DYYYY = Years.Year group by DIVISION, DYYYY, years.year having DYYYY = years.year ), q_01 as ( select DIVISION , DYYYY , sum(PARTY) as YEPAX , sum(InsAmount) as YESales from dbo.B101BookingsDetails INNER JOIN Years ON B101BookingsDetails.DYYYY = Years.Year group by DIVISION, DYYYY , years.year having DYYYY = years.year ), q_02 as ( select DIVISION , DYYYY , sum(PARTY) as CurrentPAX , sum(InsAmount) as CurrentSales from dbo.B101BookingsDetails INNER JOIN Years ON B101BookingsDetails.DYYYY = Years.Year where Booked <= CONVERT(int,@current) and DYYYY = (year( getdate() )) group by DIVISION, DYYYY ) select a.DIVISION , a.DYYYY , asofPAX , asofSales , YEPAX , YESales , CurrentPAX , CurrentSales ,asofsales/ ISNULL(NULLIF(yesales,0),1) as percentsales, CAST((asofpax) AS DECIMAL(5,1))/yepax as percentpax from q_00 as a join q_01 as b on (b.DIVISION = a.DIVISION and b.DYYYY = a.DYYYY) join q_02 as c on (b.DIVISION = c.DIVISION) JOIN Years as d on (b.dyyyy = d.year) where A.DYYYY <> (year( getdate() )) order by a.DIVISION, a.DYYYY ;

    Read the article

  • How to gain Access to member variables of a class using void pointer but Not Object

    - by mahesh
    Hi, I am trying to access member variables of a class without using object. please let me know how to go about. class TestMem { int a; int b; public: TestMem(){} void TestMem1() { a = 10; b = 20; } }; void (TestMem::*pMem)(); int main(int argc, char* argv[]) { TestMem o1; pMem = &(TestMem::TestMem1); void *p = (void*)&pMem; // How to access a & b member variables using variable p getch(); return 0; }

    Read the article

  • C - Malloc or calloc...and how?

    - by Pedro
    Hi...i have a txt file where the first number define the size of the array's, i know that calloc or malloc can reserve memory, but how? this code: typedef struct alpha{ int *size; char name; int tot; char line[60]; }ALPHA; fgets(line,60,fp); tot=atoi(line); size=(int*)calloc(name,sizeof(int); Imagine that in the first line of the txt is the number 10, wiht this code the size of name will be 10? like name[10]???

    Read the article

  • Illegal instruction in Assembly

    - by Natasha
    I really do not understand why this simple code works fine in the first attempt but when putting it in a procedure an error shows: NTVDM CPU has encountered an illegal instruction CS:db22 IP:4de4 OP:f0 ff ff ff ff The first code segment works just fine: .model small .stack 100h .code start: mov ax,@data mov ds,ax mov es,ax MOV AH,02H ;sets cursor up MOV BH,00H MOV DH,02 MOV DL,00 INT 10H EXIT: MOV AH,4CH INT 21H END However This generates an error: .model small .stack 100h .code start: mov ax,@data mov ds,ax mov es,ax call set_cursor PROC set_cursor near MOV AH,02H ;sets cursor up MOV BH,00H MOV DH,02 MOV DL,00 INT 10H RET set_cursor ENDP EXIT: MOV AH,4CH INT 21H END Note: Nothing is wrong with windows config. I have tried many sample codes that work fine Thanks

    Read the article

  • mysql query performance help

    - by Stefano
    Hi I have a quite large table storing words contained in email messages mysql> explain t_message_words; +----------------+---------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +----------------+---------+------+-----+---------+----------------+ | mwr_key | int(11) | NO | PRI | NULL | auto_increment | | mwr_message_id | int(11) | NO | MUL | NULL | | | mwr_word_id | int(11) | NO | MUL | NULL | | | mwr_count | int(11) | NO | | 0 | | +----------------+---------+------+-----+---------+----------------+ table contains about 100M rows mwr_message_id is a FK to messages table mwr_word_id is a FK to words table mwr_count is the number of occurrencies of word mwr_word_id in message mwr_message_id To calculate most used words, I use the following query SELECT SUM(mwr_count) AS word_count, mwr_word_id FROM t_message_words GROUP BY mwr_word_id ORDER BY word_count DESC LIMIT 100; that runs almost forever (more than half an hour on the test server) mysql> show processlist; +----+------+----------------+--------+---------+------+----------------------+----------------------------------------------------- | Id | User | Host | db | Command | Time | State | Info +----+------+----------------+--------+---------+------+----------------------+----------------------------------------------------- processlist | 41 | root | localhost:3148 | tst_db | Query | 1955 | Copying to tmp table | SELECT SUM(mwr_count) AS word_count, mwr_word_id FROM t_message_words GROUP BY mwr_word_id | +----+------+----------------+--------+---------+------+----------------------+----------------------------------------------------- 3 rows in set (0.00 sec) Is there anything I can do to "speed up" the query (apart from adding more ram, more cpu, faster disks)? thank you in advance stefano

    Read the article

  • java - codesprint2 programming contest answer

    - by arya
    I recently took part in Codesprint2. I was unable to submit the solution to the following question. http://www.spoj.pl/problems/COINTOSS/ ( I have posted the link to the problem statement at spoj because the codesprint link requires login ) I checked out one of the successful solutions, ( url : http://pastebin.com/uQhNh9Rc ) and the logic used is exactly the same as mine, yet I am still getting "Wrong Answer" I would be very thankful if someone could please tell me what error I have made, as I am unable to find it. Thank you. My code : import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.text.DecimalFormat; import java.util.StringTokenizer; public class Solution { static double solve( int n, int m ) { if( m==n ) return 0; if( m==0 ) return ( Math.pow( 2, n+1 ) - 2 ); else { double res = 1 + ( Double )( solve( n, m+1 ) + solve( n, 0 ))/2; return res; } } public static void main( String[] args ) throws IOException { BufferedReader br = new BufferedReader( new InputStreamReader( System.in )); int n, m; int t = Integer.parseInt( br.readLine() ); StringTokenizer tok; String s; for( int T=0; T<t; T++ ) { s = br.readLine(); tok = new StringTokenizer( s ); n = Integer.parseInt( tok.nextToken() ); m = Integer.parseInt( tok.nextToken() ); DecimalFormat df = new DecimalFormat(); df.setMaximumFractionDigits(2); df.setMinimumFractionDigits(2); System.out.println( df.format ( solve( n, m ) )); } } }

    Read the article

  • CUDA, more threads for same work = Longer run time despite better occupancy, Why?

    - by zenna
    I encountered a strange problem where increasing my occupancy by increasing the number of threads reduced performance. I created the following program to illustrate the problem: #include <stdio.h> #include <stdlib.h> #include <cuda_runtime.h> __global__ void less_threads(float * d_out) { int num_inliers; for (int j=0;j<800;++j) { //Do 12 computations num_inliers += threadIdx.x*1; num_inliers += threadIdx.x*2; num_inliers += threadIdx.x*3; num_inliers += threadIdx.x*4; num_inliers += threadIdx.x*5; num_inliers += threadIdx.x*6; num_inliers += threadIdx.x*7; num_inliers += threadIdx.x*8; num_inliers += threadIdx.x*9; num_inliers += threadIdx.x*10; num_inliers += threadIdx.x*11; num_inliers += threadIdx.x*12; } if (threadIdx.x == -1) d_out[blockIdx.x*blockDim.x+threadIdx.x] = num_inliers; } __global__ void more_threads(float *d_out) { int num_inliers; for (int j=0;j<800;++j) { // Do 4 computations num_inliers += threadIdx.x*1; num_inliers += threadIdx.x*2; num_inliers += threadIdx.x*3; num_inliers += threadIdx.x*4; } if (threadIdx.x == -1) d_out[blockIdx.x*blockDim.x+threadIdx.x] = num_inliers; } int main(int argc, char* argv[]) { float *d_out = NULL; cudaMalloc((void**)&d_out,sizeof(float)*25000); more_threads<<<780,128>>>(d_out); less_threads<<<780,32>>>(d_out); return 0; } Note both kernels should do the same amount of work in total, the (if threadIdx.x == -1 is a trick to stop the compiler optimising everything out and leaving an empty kernel). The work should be the same as more_threads is using 4 times as many threads but with each thread doing 4 times less work. Significant results form the profiler results are as followsL: more_threads: GPU runtime = 1474 us,reg per thread = 6,occupancy=1,branch=83746,divergent_branch = 26,instructions = 584065,gst request=1084552 less_threads: GPU runtime = 921 us,reg per thread = 14,occupancy=0.25,branch=20956,divergent_branch = 26,instructions = 312663,gst request=677381 As I said previously, the run time of the kernel using more threads is longer, this could be due to the increased number of instructions. Why are there more instructions? Why is there any branching, let alone divergent branching, considering there is no conditional code? Why are there any gst requests when there is no global memory access? What is going on here! Thanks

    Read the article

  • fcgio.cpp: In destructor 'virtual fcgi_streambuf::~fcgi_streambuf()':

    - by skyeagle
    I am attempting to build fastcgi on a Linux Ubuntu 10.x machine. I run the following commands: ./configure make and I get the following error: fcgio.cpp: In destructor 'virtual fcgi_streambuf::~fcgi_streambuf()': fcgio.cpp:50: error: 'EOF' was not declared in this scope fcgio.cpp: In member function 'virtual int fcgi_streambuf::overflow(int)': fcgio.cpp:70: error: 'EOF' was not declared in this scope fcgio.cpp:75: error: 'EOF' was not declared in this scope fcgio.cpp: In member function 'virtual int fcgi_streambuf::sync()': fcgio.cpp:86: error: 'EOF' was not declared in this scope fcgio.cpp:87: error: 'EOF' was not declared in this scope fcgio.cpp: In member function 'virtual int fcgi_streambuf::underflow()': fcgio.cpp:107: error: 'EOF' was not declared in this scope make[2]: *** [fcgio.lo] Error 1 make[2]: Leaving directory `/somepath/fcgi-2.4.0/libfcgi' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/somepath/fcgi-2.4.0' make: *** [all] Error 2 I notice that others have had the same problem and have asked this question in various fora etc - however, I have not as yet, seen an answer to this question/problem. Has anyone ever managed to build fastcgi on Linux? How do I fix this problem?

    Read the article

  • How to maintain the state of button cutom listview in android

    - by Akshay
    I have custom ListView with three TextView three Button and three Chronometer. And the situation is I am loading the ListView properly.But while loading ListView I am disabling some button in the ListView by checking one parameter. Up to this point ListView is showing it's row properly. But when I am scrolling the ListView at that time previously enabled Button are getting disabled.What I am doing wrong I am not getting can one please point out my mistake Or any suggestion. Here is my Adapter class. public class OrderSmartKitchenAdapter extends BaseAdapter { private int flagDeliveryComplete = 0; private int flagPreparationComplete = 0; private int flagPreparationStarted = 0; private List<OrderitemdetailsBO> list = new ArrayList<OrderitemdetailsBO(); private int orderStatus; public OrderSmartKitchenAdapter() { // TODO Auto-generated constructor stub } public void setOrderList(List<OrderitemdetailsBO> orderList) { this.list = orderList; } @Override public int getCount() { // TODO Auto-generated method stub Log.i("OrderItemList Size :-", Integer.toString(list.size())); return list.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return 0; } @Override public View getView(final int position, View convertView,ViewGroup parent) { // TODO Auto-generated method stub final ViewHolder viewHolder ; if (convertView == null) { layoutInflater = LayoutInflater.from(myContext); convertView = layoutInflater.inflate(R.layout.table_row_view,null); viewHolder = new ViewHolder(); viewHolder.txtTableNumber = (TextView) convertView.findViewById(R.id.txtTableNumber); viewHolder.txtMenuItem = (TextView) convertView.findViewById(R.id.txtMenuItem); viewHolder.txtQuantity = (TextView) convertView.findViewById(R.id.txtQuantity); viewHolder.txtOrderAcceptanceTime = (TextView) convertView.findViewById(R.id.txtOrderAcceptanceTime); viewHolder.txtElapsedTimeOfOrderAcceptance = (Chronometer) convertView.findViewById(R.id.txtElapsedTimeOfOrderAcceptance); viewHolder.btnPreparationStart = (Button) convertView.findViewById(R.id.btnPreparationStart); viewHolder.btnPreparationStart.setTag(position); viewHolder.txtElapsedTimeForPreparation = (Chronometer) convertView.findViewById(R.id.txtElapsedTimeForPrepatration); viewHolder.btnPreparationComplete = (Button) convertView.findViewById(R.id.btnPreparationCompleted); viewHolder.btnPreparationComplete.setTag(position); viewHolder.txtElapsedTimeForDeliveryComplete = (Chronometer) convertView.findViewById(R.id.txtElapsedTimeForCompleation); viewHolder.btnDeliveryComplete = (Button) convertView.findViewById(R.id.btnOrderComplete); viewHolder.btnDeliveryComplete.setTag(position); convertView.setTag(viewHolder); } else{ viewHolder = (ViewHolder)convertView.getTag(); viewHolder.btnDeliveryComplete.setTag(position); viewHolder.btnPreparationComplete.setTag(position); viewHolder.btnPreparationStart.setTag(position); } if (list.get(position) != null) { OrderitemdetailsBO orderitemdetailsBO = new OrderitemdetailsBO(); orderitemdetailsBO = list.get(position); viewHolder.txtTableNumber.setText(orderitemdetailsBO.getOrderitemid().toString()); viewHolder.txtMenuItem.setText(orderitemdetailsBO.getMenuitemname().toString()); viewHolder.txtQuantity.setText(orderitemdetailsBO.getQuantity().toString()); Log.i("Table Number :-", Long.toString(orderitemdetailsBO.getOrderitemid())); Log.i("Menu Name :-", orderitemdetailsBO.getMenuitemname().toString()); Log.i("Quantity", orderitemdetailsBO.getQuantity().toString()); Date acceptTime = new Date(); acceptTime = orderitemdetailsBO.getOrderdatetime(); viewHolder.txtOrderAcceptanceTime.setText(DateUtil.getDateAsString(acceptTime,"HH:mm")); Log.i("Order Accept Time :-", acceptTime.getMinutes() + ":"+ acceptTime.getSeconds()); orderStatus = orderitemdetailsBO.getOrderstatus(); Date preparationStartTime = new Date(); preparationStartTime = orderitemdetailsBO.getPreparationstarttime(); if(preparationStartTime != null) { Log.i("OrderSmartKitchenActivity", "2 Order Acceptance Time :-" + "Menu Item id "+ orderitemdetailsBO.getOrderitemid() + " Preparation Start time " + orderitemdetailsBO.getPreparationstarttime() ); viewHolder.txtElapsedTimeOfOrderAcceptance.stop(); Log.i("Preparation Start Time :-",preparationStartTime.getMinutes() + ":" + preparationStartTime.getSeconds()); viewHolder.txtElapsedTimeOfOrderAcceptance.setText(DateUtil.getDateAsString(preparationStartTime,"MM:ss")); viewHolder.txtElapsedTimeOfOrderAcceptance.stop(); viewHolder.btnPreparationStart.setEnabled(false); viewHolder.btnPreparationStart.setClickable(false); viewHolder.btnPreparationStart.setBackgroundColor(Color.LTGRAY); } else { Long n = acceptTime.getTime(); Log.i("OrderSmartKitchenActivity", "Order Acceptance Time :-" + "Menu Item id "+ orderitemdetailsBO.getOrderitemid() + " Acceptance time" + Long.toString(n) + " Preparation Start time " + orderitemdetailsBO.getPreparationstarttime() ); // Calculate Time difference viewHolder.txtElapsedTimeOfOrderAcceptance.setBase(SystemClock.elapsedRealtime() - System.currentTimeMillis() + n); viewHolder.txtElapsedTimeOfOrderAcceptance.getBase(); viewHolder.txtElapsedTimeOfOrderAcceptance.start(); viewHolder.txtElapsedTimeOfOrderAcceptance.setFormat("%s"); } viewHolder.btnPreparationStart.setOnClickListener(new OnClickListener() { @Override public void onClick(final View v) { // TODO Auto-generated method stub if (flagPreparationStarted == 0) { flagPreparationStarted++; v.startAnimation(playAnimation()); handler.postDelayed(new Runnable() { @Override public void run() { // TODO Auto-generated method stub v.clearAnimation(); Date currentTime = new Date(); // Set Preparation Start Time. viewHolder.txtElapsedTimeOfOrderAcceptance.stop(); Date setTime = new Date(currentTime.getTime() * 1000); OrderitemdetailsBO orderitemdetailsBO = list.get(position); orderitemdetailsBO.setPreparationstarttime(setTime); String orderDetails = "2"; String getPosition = Integer.toString(position); viewHolder.btnPreparationStart.setBackgroundColor(Color.LTGRAY); new sendOrderStatusToServer().execute(orderDetails,getPosition); } }, 5000); } else { handler.removeCallbacksAndMessages(null); v.clearAnimation(); flagPreparationStarted = 0; Log.i("Handler Removed. :-", "Here"); } } }); String preparationTime = orderitemdetailsBO.getOrderpreparationtime(); if(preparationTime != null && orderStatus == order_preparationComplete) { viewHolder.txtElapsedTimeForPreparation.setText(preparationTime); viewHolder.txtElapsedTimeForPreparation.stop(); viewHolder.btnPreparationComplete.getTag(position); viewHolder.btnPreparationComplete.setEnabled(false); viewHolder.btnPreparationComplete.setClickable(false); viewHolder.btnPreparationComplete.setBackgroundColor(Color.LTGRAY); } else if( orderStatus == order_preparationStart || orderStatus == orderReceived || orderStatus == order_delivered){ Long n = acceptTime.getTime(); Log.i("Preparation Start Time :-", Long.toString(n)); viewHolder.txtElapsedTimeForPreparation.setBase(SystemClock.elapsedRealtime() - System.currentTimeMillis() + n); viewHolder.txtElapsedTimeForPreparation.getBase(); viewHolder.txtElapsedTimeForPreparation.start(); viewHolder.txtElapsedTimeForPreparation.setFormat("%s"); } viewHolder.btnPreparationComplete.setOnClickListener(new OnClickListener() { @Override public void onClick(final View v) { // TODO Auto-generated method if (flagPreparationComplete == 0) { flagPreparationComplete++; v.startAnimation(playAnimation()); handler.postDelayed(new Runnable() { @Override public void run() { // TODO Auto-generated method stub v.clearAnimation(); OrderitemdetailsBO orderitemdetailsBO = list.get(position); Date date = orderitemdetailsBO.getPreparationstarttime(); if(date != null) { viewHolder.txtElapsedTimeForPreparation.stop(); Date currentTime = new Date(); Calendar calendar = Calendar.getInstance(); int minute = calendar.get(Calendar.MINUTE); int second = calendar.get(Calendar.SECOND); orderitemdetailsBO.setOrderpreparationtime(calendar.get(Calendar.MINUTE) +":" +calendar.get(Calendar.SECOND)); String orderDetails = "3"; String getPosition = Integer.toString(position); viewHolder.btnPreparationComplete.setBackgroundColor(Color.LTGRAY); new sendOrderStatusToServer().execute(orderDetails,getPosition); } else { Toast.makeText(myContext, "Please Enter Preparation Start Time.", Toast.LENGTH_LONG).show(); } } }, 5000); } else { handler.removeCallbacksAndMessages(null); v.clearAnimation(); flagPreparationComplete = 0; } } }); String deleveredTime = orderitemdetailsBO.getOrderdeliverytime(); if(deleveredTime != null && orderStatus == order_delivered) { Date delevered = new Date(Long.parseLong(deleveredTime)); viewHolder.txtElapsedTimeForPreparation.setText(DateUtil.getDateAsString(delevered,"MM:ss")); Log.i("Preparation Start Time :-", delevered.getMinutes()+":"+delevered.getSeconds()); viewHolder.txtElapsedTimeForPreparation.stop(); viewHolder.btnDeliveryComplete.getTag(position); viewHolder.btnDeliveryComplete.setEnabled(false); viewHolder.btnDeliveryComplete.setClickable(false); viewHolder.btnDeliveryComplete.setBackgroundColor(Color.LTGRAY); } else if(orderStatus == 3 || orderStatus == 2 || orderStatus == 1) { Long n = acceptTime.getTime(); Log.i("Preparation Start Time :-", Long.toString(n)); viewHolder.txtElapsedTimeForDeliveryComplete.setTag(list.get(position)); viewHolder.txtElapsedTimeForDeliveryComplete.setBase(SystemClock.elapsedRealtime() - System.currentTimeMillis() + n); viewHolder.txtElapsedTimeForDeliveryComplete.getBase(); viewHolder.txtElapsedTimeForDeliveryComplete.start(); viewHolder.txtElapsedTimeForDeliveryComplete.setFormat("%s"); } viewHolder.btnDeliveryComplete.setOnClickListener(new OnClickListener() { @Override public void onClick(final View v) { // TODO Auto-generated method stub if (flagDeliveryComplete == 0) { flagDeliveryComplete++; v.startAnimation(playAnimation()); handler.postDelayed(new Runnable() { @Override public void run() { // TODO Auto-generated method stub v.clearAnimation(); OrderitemdetailsBO orderitemdetailsBO = list.get(position); Date date = orderitemdetailsBO.getPreparationstarttime(); String preparationComplete = orderitemdetailsBO.getOrderpreparationtime(); if(date != null && preparationComplete != null ) { Date currentTime = new Date(); Calendar calendar = Calendar.getInstance(); viewHolder.txtElapsedTimeForDeliveryComplete.stop(); orderitemdetailsBO.setOrderdeliverytime(calendar.get(Calendar.MINUTE) +":"+calendar.get(Calendar.SECOND)); String orderDetails = Integer.toString(order_delivered); String getPosition = Integer.toString(position); viewHolder.btnDeliveryComplete.setBackgroundColor(Color.LTGRAY); new sendOrderStatusToServer().execute(orderDetails,getPosition); } else { Toast.makeText(myContext, "Please Enter Preparation Start Time & Preparation Complete Time.", Toast.LENGTH_LONG).show(); } } }, 5000); } else { handler.removeCallbacksAndMessages(null); v.clearAnimation(); flagDeliveryComplete = 0; } } }); } return convertView; } } private static class ViewHolder { protected TextView txtTableNumber; protected TextView txtMenuItem; protected TextView txtQuantity; protected TextView txtOrderAcceptanceTime; protected Chronometer txtElapsedTimeOfOrderAcceptance; protected Button btnPreparationStart; protected Chronometer txtElapsedTimeForPreparation; protected Button btnPreparationComplete; protected Chronometer txtElapsedTimeForDeliveryComplete; protected Button btnDeliveryComplete; }

    Read the article

  • Using typedefs from a template class in a template (non-member) function

    - by atomicpirate
    The following fails to compile (with gcc 4.2.1 on Linux, anyway): template< typename T > class Foo { public: typedef int FooType; }; void ordinary() { Foo< int >::FooType bar = 0; } template< typename T > void templated() { Foo< T >::FooType bar = T( 0 ); } int main( int argc, char **argv ) { return 0; } The problem is with this line: Foo< T >::FooType bar = 0; ...and the compiler makes this complaint: foo.c: In function ‘void templated()’: foo.c:22: error: expected `;' before ‘bar’ Normally one sees this when a type hasn't been declared, but as far as I can tell, Foo< T ::FooType should be perfectly valid inside templated().

    Read the article

  • Shape object in Processing, translate individual shapes.

    - by Zain
    I am relatively new to Processing but have been working in Java for about 2 years now. I am facing difficulty though with the translate() function for objects as well as objects in general in processing. I went through the examples and tried to replicate the manners by which they instantiated the objects but cannot seem to even get the shapes to appear on the screen no less move them. I instantiate the objects into an array using a nested for loop and expect a grid of the objects to be rendered. However, nothing at all is rendered. My nested for loop structure to instantiate the tiles: for(int i=0; i<102; i++){ for(int j=0; j<102; j++){ tiles[i][j]=new tile(i,0,j); tiles[i][j].display(); } } And the constructors for the tile class: tile(int x, int y, int z){ this.x=x; this.y=y; this.z=z; beginShape(); vertex(x,y,z); vertex(x+1,y,z); vertex(x+1,y,z-1); vertex(x,y,z-1); endShape(); } Nothing is rendered at all when this runs. Furthermore, if this is of any concern, my translations(movements) are done in a method I wrote for the tile class called move which simply calls translate. Is this the correct way? How should one approach this? I can't seem to understand at all how to render/create/translate individual objects/shapes. Thanks for any help any of you are able to provide!

    Read the article

  • java source code doubt

    - by abson
    this compiles class ex1 { public int show() { try { int a=10/10; return 10;} catch(ArithmeticException e) { System.out.println(e); } finally { System.out.println("Finally");} System.out.println("hello"); return 20; } } on the other hand this doesn't class ex15 { public int show() { try { int a=10/0; return 10;} catch(ArithmeticException e) { System.out.println(e); } finally { System.out.println("Finally"); return 40;} System.out.println("hello"); return 20; } } why is it so?

    Read the article

  • MS Sql Get Top xx Blog Record From Umbraco by parameter...

    - by ccppjava
    Following SQL get what I need: SELECT TOP (50) [nodeId] FROM [dbo].[cmsContentXml] WHERE [xml] like '%creatorID="29"%' AND [xml] like '%nodeType="1086"%' ORDER BY [nodeId] DESC I need to pass in the numbers as parameters, so I have follows: exec sp_executesql N'SELECT TOP (@max) [nodeId] FROM [dbo].[cmsContentXml] WHERE [xml] like ''%creatorID="@creatorID"%'' AND [xml] like ''%nodeType="@nodeType"%'' ORDER BY [nodeId] DESC',N'@max int,@creatorID int,@nodeType int',@max=50,@creatorID=29,@nodeType=1086 which however, returns no record, any idea?

    Read the article

  • Sql Paging/Sorting - Efficent method with dynamic sort?

    - by dmose
    I'm trying to implement this style of paging: http://www.4guysfromrolla.com/webtech/042606-1.shtml CREATE PROCEDURE [dbo].[usp_PageResults_NAI] ( @startRowIndex int, @maximumRows int ) AS DECLARE @first_id int, @startRow int -- A check can be added to make sure @startRowIndex isn't > count(1) -- from employees before doing any actual work unless it is guaranteed -- the caller won't do that -- Get the first employeeID for our page of records SET ROWCOUNT @startRowIndex SELECT @first_id = employeeID FROM employees ORDER BY employeeid -- Now, set the row count to MaximumRows and get -- all records >= @first_id SET ROWCOUNT @maximumRows SELECT e.*, d.name as DepartmentName FROM employees e INNER JOIN Departments D ON e.DepartmentID = d.DepartmentID WHERE employeeid >= @first_id ORDER BY e.EmployeeID SET ROWCOUNT 0 GO This method works great, however, is it possible to use this method and have dynamic field sorting? If we change this to SELECT e.*, d.name as DepartmentName FROM employees e INNER JOIN Departments D ON e.DepartmentID = d.DepartmentID WHERE employeeid >= @first_id ORDER BY e.FirstName DESC It breaks the sorting... Is there any way to combine this method of paging with the ability to sort on different fields?

    Read the article

  • Connecting an overloaded PyQT signal using new-style syntax

    - by Claudio
    I am designing a custom widget which is basically a QGroupBox holding a configurable number of QCheckBox buttons, where each one of them should control a particular bit in a bitmask represented by a QBitArray. In order to do that, I added the QCheckBox instances to a QButtonGroup, with each button given an integer ID: def populate(self, num_bits, parent = None): """ Adds check boxes to the GroupBox according to the bitmask size """ self.bitArray.resize(num_bits) layout = QHBoxLayout() for i in range(num_bits): cb = QCheckBox() cb.setText(QString.number(i)) self.buttonGroup.addButton(cb, i) layout.addWidget(cb) self.setLayout(layout) Then, each time a user would click on a checkbox contained in self.buttonGroup, I'd like self.bitArray to be notified so I can set/unset the corresponding bit in the array. For that I intended to connect QButtonGroup's buttonClicked(int) signal to QBitArray's toggleBit(int) method and, to be as pythonic as possible, I wanted to use new-style signals syntax, so I tried this: self.buttonGroup.buttonClicked.connect(self.bitArray.toggleBit) The problem is that buttonClicked is an overloaded signal, so there is also the buttonClicked(QAbstractButton*) signature. In fact, when the program is executing I get this error when I click a check box: The debugged program raised the exception unhandled TypeError "QBitArray.toggleBit(int): argument 1 has unexpected type 'QCheckBox'" which clearly shows the toggleBit method received the buttonClicked(QAbstractButton*) signal instead of the buttonClicked(int) one. So, the question is, how can we specify, using new-style syntax, that self.buttonGroup emits the buttonClicked(int) signal instead of the default overload - buttonClicked(QAbstractButton*)?

    Read the article

  • Finite State Machine Spellchecker

    - by Durell
    I would love to have a debugged copy of the finite state machine code below. I tried debugging but could not, all the machine has to do is to spell check the word "and",an equivalent program using case is welcomed. #include<cstdlib> #include<stdio.h> #include<string.h> #include<iostream> #include<string> using namespace std; char in_str; int n; void spell_check() { char data[256]; int i; FILE *in_file; in_file=fopen("C:\\Users\\mytorinna\\Desktop\\a.txt","r+"); while (!feof(in_file)) { for(i=0;i<256;i++) { fscanf(in_file,"%c",in_str); data[i]=in_str; } //n = strlen(in_str); //start(data); cout<<data; } } void start(char data) { // char next_char; //int i = 0; // for(i=0;i<256;i++) // if (n == 0) { if(data[i]="a") { state_A(); exit; } else { cout<<"I am comming"; } // cout<<"This is an empty string"; // exit();//do something here to terminate the program } } void state_A(int i) { if(in_str[i] == 'n') { i++; if(i<n) state_AN(i); else error(); } else error(); } void state_AN(int i) { if(in_str[i] == 'd') { if(i == n-1) cout<<" Your keyword spelling is correct"; else cout<<"Wrong keyword spelling"; } } int main() { spell_check(); system("pause"); return 0; }

    Read the article

  • MYSQL: Error: Cannot add or update a child row: a foreign key constraint fails

    - by DalivDali
    Hi all, Using MySQL on Windows OS, and am getting an error upon attempting to create a foreign key between two tables: CREATE TABLE tf_traffic_stats ( domain_name char(100) NOT NULL, session_count int(11) NULL, search_count int(11) NULL, click_count int(11) NULL, revenue float NULL, rpm float NULL, cpc float NULL, traffic_date date NOT NULL DEFAULT '0000-00-00', PRIMARY KEY(domain_name,traffic_date)) and CREATE TABLE td_domain_name ( domain_id int(10) UNSIGNED AUTO_INCREMENT NOT NULL, domain_name char(100) NOT NULL, update_date date NOT NULL, PRIMARY KEY(domain_id)) The following statement gives me the error present in the subject line (cannot add or update a child row: a foreign key constraint fails): ALTER TABLE td_domain_name ADD CONSTRAINT FK_domain_name FOREIGN KEY(domain_name) REFERENCES tf_traffic_stats(domain_name) ON DELETE RESTRICT ON UPDATE RESTRICT Can someone point me in the right direction of what may be causing the error. I also have a foreign key referencing td_domain_name.domain_id, but I don't think this should be interfering... Appreciate it!

    Read the article

  • MySQL foreign key creation with alter table command

    - by user313338
    I created some tables using MySQL Workbench, and then did forward ‘forward engineer’ to create scripts to create these tables. BUT, the scripts lead me to a number of problems. One of which involves the foreign keys. So I tried creating separate foreign key additions using alter table and I am still getting problems. The code is below (the set statements, drop/create statements I left in … though I don’t think they should matter for this): SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0; SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0; SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL'; DROP SCHEMA IF EXISTS `mydb` ; CREATE SCHEMA IF NOT EXISTS `mydb` DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci ; -- ----------------------------------------------------- -- Table `mydb`.`User` -- ----------------------------------------------------- DROP TABLE IF EXISTS `mydb`.`User` ; CREATE TABLE IF NOT EXISTS `mydb`.`User` ( `UserName` VARCHAR(35) NOT NULL , `Num_Accts` INT NOT NULL , `Password` VARCHAR(45) NULL , `Email` VARCHAR(45) NULL , `User_ID` INT NOT NULL AUTO_INCREMENT , PRIMARY KEY (`User_ID`) ) ENGINE = InnoDB; -- ----------------------------------------------------- -- Table `mydb`.`User_Space` -- ----------------------------------------------------- DROP TABLE IF EXISTS `mydb`.`User_Space` ; CREATE TABLE IF NOT EXISTS `mydb`.`User_Space` ( `User_UserName` VARCHAR(35) NOT NULL , `User_Space_ID` INT NOT NULL AUTO_INCREMENT , PRIMARY KEY (`User_Space_ID`), FOREIGN KEY (`User_UserName`) REFERENCES `mydb`.`User` (`UserName`) ON UPDATE CASCADE ON DELETE CASCADE) ENGINE = InnoDB; SET SQL_MODE=@OLD_SQL_MODE; SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS; SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS; The error this produces is: Error Code: 1005 Can't create table 'mydb.user_space' (errno: 150) Anybody know what the heck I’m doing wrong?? And anybody else have problems with the script generation done by mysql workbench? It’s a nice tool, but annoying that it pumps out scripts that don’t work for me. [As an fyi here’s the script it auto-generates: SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0; SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0; SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL'; DROP SCHEMA IF EXISTS `mydb` ; CREATE SCHEMA IF NOT EXISTS `mydb` DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci ; -- ----------------------------------------------------- -- Table `mydb`.`User` -- ----------------------------------------------------- DROP TABLE IF EXISTS `mydb`.`User` ; CREATE TABLE IF NOT EXISTS `mydb`.`User` ( `UserName` VARCHAR(35) NOT NULL , `Num_Accts` INT NOT NULL , `Password` VARCHAR(45) NULL , `Email` VARCHAR(45) NULL , `User_ID` INT NOT NULL AUTO_INCREMENT , PRIMARY KEY (`User_ID`) ) ENGINE = InnoDB; -- ----------------------------------------------------- -- Table `mydb`.`User_Space` -- ----------------------------------------------------- DROP TABLE IF EXISTS `mydb`.`User_Space` ; CREATE TABLE IF NOT EXISTS `mydb`.`User_Space` ( `User_Space_ID` INT NOT NULL AUTO_INCREMENT , PRIMARY KEY (`User_Space_ID`) , INDEX `User_ID` () , CONSTRAINT `User_ID` FOREIGN KEY () REFERENCES `mydb`.`User` () ON DELETE NO ACTION ON UPDATE NO ACTION) ENGINE = InnoDB; SET SQL_MODE=@OLD_SQL_MODE; SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS; SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS; ** Thanks!]

    Read the article

  • getView only shows Flagged Backgrounds for drawn Views, It does not show Flagged Background when scroll to view more items on list

    - by Leoa
    I am trying to create a listview that receives a flagged list of items to indicate a status to the user. I have been able to create the flag display by using a yellow background (see image at bottom). In Theory, the flagged list can have many flagged items in it. However in my app, only the first three flagged backgrounds are shown. I believe this is because they are initially drawn to the screen. The Flagged background that are not drawn initially to the screen do not show. I'd like to know how to get the remaining flags to show in the list. ListView Recycling: The backgrounds in the listView are being recycled in getView(). This recycling goes from position 0 to position 9. I have flags that need to match at positions 13, 14 and so on. Those positions are not being displayed. listView.getCheckedItemPositions() for multiple selections: This method will not work in my case because the user will not selected the flags. The flags are coming from the server. setNotifyOnChange() and/or public virtual void SetNotifyOnChange (bool notifyOnChange): I'm not adding new data to the list, so I don't see how this method would work for my program. Does this method communicate to getview when it is recycling data? I was unable to find an answer to this in my research. public void registerDataSetObserver: This may be overkill for my problem, but is it possible to have an observer object that keeps track of the all the positions in my items list and in my flag list no matter if the view is recycled and match them on the screen? Code: package com.convention.notification.app; import java.util.Iterator; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.Context; import android.graphics.Color; import android.os.Bundle; import android.text.Html; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.ViewParent; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.TextView; public class NewsRowAdapter extends ArrayAdapter<Item> { private Activity activity; private List<Item> items; private Item objBean; private int row; private List<Integer> disable; View view ; int disableView; public NewsRowAdapter(Activity act, int resource, List<Item> arrayList, List<Integer> disableList) { super(act, resource, arrayList); this.activity = act; this.row = resource; this.items = arrayList; this.disable=disableList; System.out.println("results of delete list a:"+disable.toString()); } public int getCount() { return items.size(); } public Item getItem(int position) { return items.get(position); } public long getItemId(int position) { return position; } @Override public int getItemViewType(int position) { for(int k =0;k < disable.size();k++){ if(position==disable.get(k)){ //System.out.println( "is "+position+" value of disable "+disable.get(k)); disableView=disable.get(k); //AdapterView.getItemAtPosition(position); } } return position; } @Override public View getView(final int position, View convertView, ViewGroup parent) { View view = convertView; ViewHolder holder; if (view == null) { LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); view = inflater.inflate(row, null); getItemViewType(position); long id=getItemId(position); if(position==disableView){ view.setBackgroundColor(Color.YELLOW); System.out.println(" background set to yellow at position "+position +" disableView is at "+disableView); }else{ view.setBackgroundColor(Color.WHITE); System.out.println(" background set to white at position "+position +" disableView is at "+disableView); } //ViewHolder is a custom class that gets TextViews by name: tvName, tvCity, tvBDate, tvGender, tvAge; holder = new ViewHolder(); /* setTag Sets the tag associated with this view. A tag can be used to * mark a view in its hierarchy and does not have to be unique * within the hierarchy. Tags can also be used to store data within * a view without resorting to another data structure. */ view.setTag(holder); } else { //the Object stored in this view as a tag holder = (ViewHolder) view.getTag(); } if ((items == null) || ((position + 1) > items.size())) return view; objBean = items.get(position); holder.tv_event_name = (TextView) view.findViewById(R.id.tv_event_name); holder.tv_event_date = (TextView) view.findViewById(R.id.tv_event_date); holder.tv_event_start = (TextView) view.findViewById(R.id.tv_event_start); holder.tv_event_end = (TextView) view.findViewById(R.id.tv_event_end); holder.tv_event_location = (TextView) view.findViewById(R.id.tv_event_location); if (holder.tv_event_name != null && null != objBean.getName() && objBean.getName().trim().length() > 0) { holder.tv_event_name.setText(Html.fromHtml(objBean.getName())); } if (holder.tv_event_date != null && null != objBean.getDate() && objBean.getDate().trim().length() > 0) { holder.tv_event_date.setText(Html.fromHtml(objBean.getDate())); } if (holder.tv_event_start != null && null != objBean.getStartTime() && objBean.getStartTime().trim().length() > 0) { holder.tv_event_start.setText(Html.fromHtml(objBean.getStartTime())); } if (holder.tv_event_end != null && null != objBean.getEndTime() && objBean.getEndTime().trim().length() > 0) { holder.tv_event_end.setText(Html.fromHtml(objBean.getEndTime())); } if (holder.tv_event_location != null && null != objBean.getLocation () && objBean.getLocation ().trim().length() > 0) { holder.tv_event_location.setText(Html.fromHtml(objBean.getLocation ())); } return view; } public class ViewHolder { public TextView tv_event_name, tv_event_date, tv_event_start, tv_event_end, tv_event_location /*tv_event_delete_flag*/; } } Logcat: 06-12 20:54:12.058: I/System.out(493): item disalbed is at postion :0 06-12 20:54:12.058: I/System.out(493): item disalbed is at postion :4 06-12 20:54:12.069: I/System.out(493): item disalbed is at postion :5 06-12 20:54:12.069: I/System.out(493): item disalbed is at postion :13 06-12 20:54:12.069: I/System.out(493): item disalbed is at postion :14 06-12 20:54:12.069: I/System.out(493): item disalbed is at postion :17 06-12 20:54:12.069: I/System.out(493): results of delete list :[0, 4, 5, 13, 14, 17] 06-12 20:54:12.069: I/System.out(493): results of delete list a:[0, 4, 5, 13, 14, 17] 06-12 20:54:12.069: I/System.out(493): set adapaer to list view called; 06-12 20:54:12.128: I/System.out(493): background set to yellow at position 0 disableView is at 0 06-12 20:54:12.628: I/System.out(493): background set to white at position 1 disableView is at 0 06-12 20:54:12.678: I/System.out(493): background set to white at position 2 disableView is at 0 06-12 20:54:12.708: I/System.out(493): background set to white at position 3 disableView is at 0 06-12 20:54:12.738: I/System.out(493): background set to yellow at position 4 disableView is at 4 06-12 20:54:12.778: I/System.out(493): background set to yellow at position 5 disableView is at 5 06-12 20:54:12.808: I/System.out(493): background set to white at position 6 disableView is at 5 06-12 20:54:12.838: I/System.out(493): background set to white at position 7 disableView is at 5 This is a link to my first question a day ago: Change Background on a specific row based on a condition in Custom Adapter I appreciate your help!

    Read the article

< Previous Page | 162 163 164 165 166 167 168 169 170 171 172 173  | Next Page >