In C, I would like to limit the string to the first 8 characters. For example, I have:
char out = printf("%c", str);
How can I make it so it only returns the first 8 characters?
hi all,
i found this to check if file exist. is there a way how to check if record exist first?
php.net
i want to check if record exist first, if exist then do update, else do insert. i do understand how to make a queries for select and insert and i dont have problem with it.
if(record exist) {
update query}
else
{ insert query}
I am trying to match what is before /../ but after / with regular expressions, but i want it to look back and stop at the first / I feel like I am close but it just looks at the first slash and then takes everything after it like... input is this:
this/is/a/./path/that/../includes/face/./stuff/../hat
and my regular expression is
#\/(.*)\.\.\/#
matching
/is/a/./path/that/../includes/face/./stuff/../
instead of just
that/../ and stuff/../
how can i adapt what i'm doing to work?
Hello
Can I call constructor explicitly, without using new, if I already have a memory for object?
// class Object1{char *str;public:Object1(char*str):str(str){puts("ctor");puts(str);};~Object1(){puts("dtor");puts(str);}};
Object1 ooo[2] = {Object1("I'm the first object"), Object1("I'm the 2nd")};
do_smth_useful(ooo);
ooo[0].~Object1(); // call destructor
ooo[0].Object1("I'm the 3rd object in place of first"); // ???? - reuse memory
Can someone explain me this Ruby on Rails puzzle?
class Post < ActiveRecord::Base
has_many :comments
end
Post.first.comments.class
=> Array
Array === Post.first.comments
=> false
Array === [ 1 ]
=> true
I'd like to be able to determine what class will be called given an URL.
For instance,
I have a page /First.aspx that has a hyperlink to /Second.aspx
In the code behind for First.aspx.cs, I'd like to be able to determine what class will execute if someone clicks on the hyperlink that points to /Second.aspx.
Given a 1*N matrix or an array, how do I find the first 4 elements which have the same value and then store the index for those elements?
PS:
I'm just curious. What if we want to find the first 4 elements whose value differences are within a certain range, say below 2? For example, M=[10,15,14.5,9,15.1,8.5,15.5,9.5], the elements I'm looking for will be 15,14.5,15.1,15.5 and the indices will be 2,3,5,7.
hi,
in my application i have the playvideo page where video will play, below that i have the option for sharing the video like adding to favorite ,playlist and sending mail.
when i click on any of the link the page is postbacking and video will start from the first.
i place update panel for link button even though it is not working (video is playing from the first i.e., page is postbacking. can u help me. thank you
There is a single WCF connection using TCP. Two threads on the server write to this connection consecutively. Is it always guaranteed that the first message gets processed by the client first? According to my understanding it should be guaranteed.
I'm not that good with regular expressions...
I need a JavaScript regular expression that will do the following:
The string can contain letters (upper and lower case), but not punctuations such as éàïç...
The string can contain numbers (0..9) anywhere in the string, except on the first position.
The string can contain underscores (_).
Valid strings:
foo
foo1
foo_bar
fooBar
Invalid strings:
1foo -- number as first character
foo bar -- space
föo -- punctuation ö
Many thanks!
Trying to display the text of the label in three different lines:
First Line
Second Line
Third Line
But is showing up in single line "First Line Second Line Third Line"
Can the label display multiple lines?
Hi ,
We are using NService bus for our messaging framework.Sometime the message is not coming as par the sequence of sending .Sometimes last message is coming first and than later first message.
Please help me out Thanks
windows only record 1 user/pwd to a remote share dir,
and my program need to connect a dir,
but the user may login first, let my program failed to connect,
is there a method to disconnect it? i only know the IP.
I use wnetcancelconnection2(remotedir) first, but still cannot work,
and return 1219 error(credentials supplied conflict with an existing set of credentials)
I keep finding myself in this situtation:
I have an ASP.NEt 2.0 app. I have to insert into 2 tables in SQL. There is a dependency between the tables. I insert a record the first using a transaction. Then I move onto the 2nd table. But, because the first isn't committed yet the second one throws a error.
In R, what is the most efficient way to count the length between 2 values. for example, i have vector x , which are all randomly choose from 1 to 100, how can i find out the length between the first"2" and first"40",
x=(1,2,3,4,5,6,7,40,1,2,3,21,4,1,23,4,43,23,4,12,3,43,5,36,3,45,12,31,3,4,23,41,23,5,53,45,3,7,6,36)
for this vector, the answer should be 5 and 6
i have file with contents in list form such as
[1,'ab','fgf','ssd']
[2,'eb','ghf','hhsd']
[3,'ag','rtf','ssfdd']
i want to read that file line by line using f.readline and assign thn to a list so as to use it is the prog as a list for using list properties
tried like
k=[ ]
k=f.readline()
print k[1]
i xpected a result to show 2nd element in the list in first line
but it showed the first bit and gave o/p as '1'
how to get the xpected output..
please suggest
I tried this :
User.find(1).update_attribute('first_name', '#{first.name.titleize}')
=> /#{first.name.titleize}
I am not sure any other way to do this.
Many thanks
Hi, i have one problem with the Jquery callback functions, here is the link:
http://saveenergy.metropolia.fi/views/pihkapuisto/
as you can see, the first page works fine. but all the others are not fine. they always right side and the size is too small. anyone knows how to change the position and size, make it looks like the first one? thanks
Please take a look at the following code:
Sort[{1, y, x}, Greater]
Max[{1, x, y}]
x = 1
y = 2
Sort[{1, y, x}, Greater]
Max[{1, x, y}]
It is interesting to note that the first Sort always produce a definite result while the first Max does not, even when Greater is specified. Note I have not given any numerical values for x and y. Why is this and how can I have a Sort function behave the same way as the Max (or Min) function?
Thanks!
I'm trying to create a grouped table view with two sections. For the first section I would like the width to be only half the screen. For the second section it would be the standard width. Also, next to the first section I would like to put a button.
How is this done?
Thanks!
is there a way to change the order data from a DB are read ? you know , the default order is that they are read from the first data inserted to the latest so is there a way to change it to latest-first?
I'm not that good with regular expressions...
I need a JavaScript regular expression that will do the following:
The string can contain letters (upper and lower case), but not punctuations such as éàïç...
The string can contain numbers (0..9) anywhere in the string, except on the first position.
The string can contain underscores (_).
Valid strings:
foo
foo1
foo_bar
fooBar
Invalid strings:
1foo -- number as first character
foo bar -- space
föo -- punctuation ö
Many thanks!
I've banging my head for hours, it seems simple enough, but here goes:
I'd like to create a view using multiple select statements that outputs a Single record-set
Example:
CREATE VIEW dbo.TestDB
AS
SELECT X AS 'First'
FROM The_Table
WHERE The_Value = 'y'
SELECT X AS 'Second'
FROM The_Table
WHERE The_Value = 'z'
i wanted to output the following recordset:
Column_1 | Column_2
'First' 'Second'
any help would be greatly appreciated!
-Thanks.
I have code which is trivial but only works in IE not Firefox.
$(document).ready(function(){
$('li#first').click();
});
I have also tried:
document.getElementById('first').click();
But that doesn't work either.
Is this an IE bug/feature or is click() not supported in the other browsers?
Thanks in advance.
I want to store the last 3 items in an MySQL database in an efficient way. So when the 4th item is stored the first should be deleted.
The way I do this not is first run a query getting the items. Than check what I should do then insert/delete.
There has to be a better way to do this. Any suggestions?