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How to empty a list in C#?
...end up using = new LisT<T>(); due to the fact that it clears all old allocations instantly. For most people though, .Clear(); will suffice, but if you find a list acting strangely - try using = new List<T>();.
– Charles
Jul 3 '14 at 3:28
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Why doesn't this code simply print letters A to Z?
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From the docs:
PHP follows Perl's convention when dealing with arithmetic operations on character variables and not C's.
For example, in Perl 'Z'+1 turns into 'AA', while in C 'Z'+1 turns into '[' ( ord('Z') == 90, ord('[') == 91 ).
Note th...
C++ deprecated conversion from string constant to 'char*'
...lution 2:
char *x = (char *)"foo bar";
Solution 3:
char* x = (char*) malloc(strlen("foo bar")+1); // +1 for the terminator
strcpy(x,"foo bar");
Arrays also can be used instead of pointers because an array is already a constant pointer.
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Replacing Spaces with Underscores
I have a PHP Script that users will enter a name like: Alex_Newton ,
12 Answers
12
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What are the best practices for catching and re-throwing exceptions?
...t to decide how the failure should be handled at the top level. In earlier PHP versions this would be implemented as
$connect = new CONNECT($db, $user, $password, $driver, $host);
try {
$connect->insertSomeRecord();
}
catch (Exception $e) {
$connect->disconnect(); // we don't want to ...
Avoid dropdown menu close on click inside
... edited Feb 9 '15 at 0:12
php-dev
6,05044 gold badges1717 silver badges3636 bronze badges
answered Aug 8 '14 at 4:32
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How to avoid isset() and empty()
... information in a somewhat better structured form: The Definitive Guide To PHP's isset And empty
IMHO you should think about not just making the app "E_NOTICE compatible", but restructuring the whole thing. Having hundreds of points in your code that regularly try to use non-existent variables so...
How to get xdebug var_dump to show full object/array
I am using xdebug (php_xdebug-2.1.2-5.3-vc9.dll) on WAMP . When I use var_dump on a large object or variable it does not show the full variable.
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Why would I ever use push_back instead of emplace_back?
... the destructor will attempt to call delete on that pointer, which was not allocated by new because it is just a stack object. This leads to undefined behavior.
This is not just invented code. This was a real production bug I encountered. The code was std::vector<T *>, but it owned the conten...
What is the cleanest way to get the progress of JQuery ajax request?
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http://www.htmlgoodies.com/beyond/php/show-progress-report-for-long-running-php-scripts.html
I was searching for a similar solution and found this one use full.
var es;
function startTask() {
es = new EventSource('yourphpfile.php');
//a message is rec...