initialize array to 0 in C
- by Claudiu
I need a big null array in C as a global. Is there any way to do this besides typing out
char ZEROARRAY[1024] = {0, 0, 0, /* ... 1021 more times... */ };
?
Search Results
Search found 20909 results on 837 pages for 'boost multi array'.
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C++ WCHAR: Cannot allocate an array of constant size 0
- by Rosarch
I'm trying to create a WCHAR: LONG bufferSize = foo.bar() + 1; WCHAR wszBaz[bufferSize]; The compiler issues an error: error C2057: expected constant expression error C2466: cannot allocate an array of constant size 0 error C2133: 'wszBaz' unknown size What am I doing wrong? UPDATE: I added const but it still gives the same error: const LONG bufferSize = foo.bar() + 1; WCHAR wszBaz[bufferSize];Read the article
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PHP string == name of array ?
- by John Isaacks
If I have an array named $myArray how can I get a reference to it from a string of the same name myArray. I tried: eval('myArray'); But that gave me an error.Read the article
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efficiently convert string (or tuple) to ctypes array
- by Mu Mind
I've got code that takes a PIL image and converts it to a ctypes array to pass out to a C function: w_px, h_px = img.size pixels = struct.unpack('%dI'%(w_px*h_px), img.convert('RGBA').tostring()) pixels_array = (ctypes.c_int * len(pixels))(*pixels) But I'm dealing with big images, and unpacking that many items into function arguments seems to be noticeably slow. What's the simplest thing I can do to get a reasonable speedup? I'm only converting to a tuple as an intermediate step, so if it's unnecessary, all the better.Read the article
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how to read XML file into two dimensional array using java
- by Karthika
hi friends, How to read XML file into two dimensional array using java. Am new to this concept. Please suggest me any ideas and suggest any websites and examples regarding this question.Read the article
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Array model binding difficulty
- by user281180
I am having difficulty for using array model binding. Actually I can see that the values sent from the views are not binded to the model and the arrays still have the values already instantiated. How can I solve this problem?Read the article
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Question : Perl map - need to map a array into a hash as arrayelement->array_index
- by TGV
Hi folks. I have a array like this: my @arr = ("Field3","Field1","Field2","Field5","Field4"); Now i use map like below , where /DOSOMETHING/ is the answer am seeking. my %hash = map {$_ => **/DOSOMETHING/** } @arr Now I require the hash to look like below: Field3 = 0 Field1 = 1 Field2 = 2 Field5 = 3 Field4 = 4 Any help?Read the article
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Reading a File into a Byte Array (PHP)
- by Valdas
I have one file. but now need to read this file into a bytes array. In java or c++ it's very easy to do that. but not found how i can read in PHP.Read the article
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Perl, search array
- by Mike
What is the smartest way of searching through an array of strings for a matching string in Perl? One caveat, I would like the search to be case-insensitive so "aAa" would be in ("aaa","bbb")Read the article
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Convert a byte into a boolean array of length 4 in Java
- by Agrajag9
I need to convert a byte into an array of 4 booleans in Java. How might I go about this?Read the article
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Convert a String into an Array of Characters
- by AJ
in PHP, how do i convert: $result = abdcef; into an array thats: $result[0] = a; $result[1] = b; $result[2] = c; $result[3] = d; ??????Read the article
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Python script to remove lines from file containing words in array
- by chromesub
I have the following script which identifies lines in a file which I want to remove, based on an array but does not remove them. What should I change? sourcefile = "C:\\Python25\\PC_New.txt" filename2 = "C:\\Python25\\PC_reduced.txt" offending = ["Exception","Integer","RuntimeException"] def fixup( filename ): print "fixup ", filename fin = open( filename ) fout = open( filename2 , "w") for line in fin.readlines(): for item in offending: print "got one",line line = line.replace( item, "MUST DELETE" ) line=line.strip() fout.write(line) fin.close() fout.close() fixup(sourcefile)Read the article
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In Python How can I declare a Dynamic Array
- by Srinath
I want to declare an Array and all items present in the ListBox Should Be deleted irrespective of the Group name present in the ListBox. can any body help me coding in Python. I am using WINXP OS & Python 2.6.Read the article
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javascript iterate array of variables and reassign value to each variable
- by Shanison
Hi how should i iterate array of variables and reassign value to each variable. E.g in jQuery function test(param1, param2) { $.each([param1, param2], function (i, v) { //check if all the input params have value, else assign the default value to it if (!v) v = default_value; //this is wrong, can't use v, which is value } } How should I get the variable and assign new value in the loop? Thank you very much!Read the article
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How can I use linq to select the columns of a jagged array
- by CoGo
How can I use linq in C# to select the columns of a jagged array of ints, I select the rows as follows. int[][] values; .... var rows = from row in values select row; Thank you for the help.Read the article
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javascript split string on space or on quotes to array
- by Boriz
var str = 'single words "fixed string of words"'; var astr = str.split(" "); // need fix i want the array to be like: single, words, fixed string of words.Read the article
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Finding the product of each of the (n-1) subsets of a given array
- by guirgis
Hey everybody. Given an array of n integers, i need to find the product of each of the (n-1) subsets i.e: ith subset = the product of all the elements except the ith element itself. e.g: S = {1,0,3,2}; subset_product(1) = 0*3*2=0; subset_product(2) = 1*3*2=6; etc. So Any help?Read the article
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Add new item in existing array in c#.net
- by Nirmal
How to add new item in existing string array in c#.net. i need to preserve the existing data.Read the article
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Unset an array element inside a foreach loop
- by Summer
I'm accessing an array by reference inside a foreach loop, but the unset() function doesn't seem to be working: foreach ( $this->result['list'] as &$row ) { if ($this_row_is_boring) { unset($row); } } print_r($this->result['list']); // Includes rows I thought I unset Ideas? Thanks!Read the article
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C++ sort array of strings
- by user69514
I am trying to sort an array of strings, but it's not sorting anything.... what am I doing wrong? string namesS[MAX_NAMES]; int compare (const void * a, const void * b){ return ( *(char*)a - *(char*)b ); } void sortNames(){ qsort(namesS, MAX_NAMES, sizeof(string), compare); }Read the article
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Does this definition create an array in Javascript?
- by As
in my jQuery code, i am using var a = [23, 34, 45, 33]; is 'a' considered an array of integers?Read the article
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Search inside dynamic array in python
- by user2091683
I want to implement a code that loops inside an array that its size is set by the user that means that the size isn't constant. for example: A=[1,2,3,4,5] then I want the output to be like this: [1],[2],[3],[4],[5] [1,2],[1,3],[1,4],[1,5] [2,3],[2,4],[2,5] [3,4],[3,5] [4,5] [1,2,3],[1,2,4],[1,2,5] [1,3,4],[1,3,5] and so on [1,2,3,4],[1,2,3,5] [2,3,4,5] [1,2,3,4,5] Can you help me implement this code?Read the article
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Detecting Completion of an Array of Threads
- by Harsha
I have created an array of threads and started all of them. How to know whether all threads have completed work. I don't want to use thread.wait or thread.join.Read the article
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removing comma from string array
- by sarah
Hi, I want to execute a query like select ID from "xyz_DB"."test" where user in ('a','b') so the corresponding code is like String s="("; for(String user:selUsers){ s+= " ' " + user + " ', "; } s+=")"; Select ID from test where userId in s; The following code is forming the value of s as ('a','b',) i want to remove the comma after the end of array how to do this ?Read the article
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How to repeat an array in PHP?
- by wamp
$arr = array('1st', '1st'); The above $arr has 2 items , I want to repeat $arr so that it's populated with 4 items Is there a single call in PHP?Read the article
