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How do I use valgrind to find memory leaks?
...locks are definitely lost in loss record 1 of 1
at 0x4C29BE3: malloc (vg_replace_malloc.c:299)
by 0x40053E: main (in /home/Peri461/Documents/executable)
Let's take a look at the C code I wrote too:
#include <stdlib.h>
int main() {
char* string = malloc(5 * sizeof(char)); //LEAK: ...
Java ByteBuffer to String
...sibling getBytes() method:
byte[] bytes = k.getBytes( StandardCharsets.UTF_8 );
To put bytes with a particular encoding into a String, you can use a different String constructor:
String v = new String( bytes, StandardCharsets.UTF_8 );
Note that ByteBuffer.array() is an optional operation. If y...
What is the difference between typeof and instanceof and when should one be used vs. the other?
...ot work as expected and typeof works well ... developer.mozilla.org/En/Core_JavaScript_1.5_Reference/…
– farinspace
May 22 '09 at 19:37
55
...
Perform debounce in React.js
...as it's not really relevant, but this answer will work perfectly fine with _.debounce of underscore or lodash, as well as any user-provided debouncing function.
GOOD IDEA:
Because debounced functions are stateful, we have to create one debounced function per component instance.
ES6 (class prope...
Readonly Properties in Objective-C?
...
In the implementation .m file:
// inside one of my init methods
self->_foo = @"someString"; // Notice the underscore prefix of var name.
That’s it, that’s all you need. No muss, no fuss.
Details
As of Xcode 4.4 and LLVM Compiler 4.0 (New Features in Xcode 4.4), you need not mess with th...
How can I get the list of files in a directory using C or C++?
... */
while ((ent = readdir (dir)) != NULL) {
printf ("%s\n", ent->d_name);
}
closedir (dir);
} else {
/* could not open directory */
perror ("");
return EXIT_FAILURE;
}
It is just a small header file and does most of the simple stuff you need without using a big template-based ap...
Adding days to a date in Python
...to do:
import datetime
Then you'll have, using datetime.timedelta:
date_1 = datetime.datetime.strptime(start_date, "%m/%d/%y")
end_date = date_1 + datetime.timedelta(days=10)
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Get local IP address
... edited Oct 17 '17 at 19:32
ivan_pozdeev
26.5k1010 gold badges7676 silver badges124124 bronze badges
answered Jul 23 '11 at 20:26
...
Get nth character of a string in Swift programming language
...vailable also to the substrings:
extension StringProtocol {
subscript(_ offset: Int) -> Element { self[index(startIndex, offsetBy: offset)] }
subscript(_ range: Range<Int>) -> SubSequence { prefix(range.lowerBound+range.count).suffix(range.c...
Does height and width not apply to span?
...level element, then it will accept your dimension directives.
span.product__specfield_8_arrow
{
display: inline-block; /* or block */
}
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