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What is a good pattern for using a Global Mutex in C#?
...id );
// Need a place to store a return value in Mutex() constructor call
bool createdNew;
// edited by Jeremy Wiebe to add example of setting up security for multi-user usage
// edited by 'Marc' to work also on localized systems (don't use just "Everyone")
var allowEveryoneRu...
How to create a custom attribute in C#
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will i really like the answer and specially ",one more question i can put same condition in set statement of the above code so how it different from attributs,
– slash shogdhe
Feb 2 '11 at 20:58
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“unary operator expected” error in Bash if condition
... you don't need to use two "[", which amounts to two processes ("[" is actually a program) instead of one.
It goes by this syntax: ${VARIABLE:-default}.
The whole thing has to be thought in such a way that this "default" value is something distinct from a "valid" value/content.
If that's not poss...
How to print full stack trace in exception?
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I usually use the .ToString() method on exceptions to present the full exception information (including the inner stack trace) in text:
catch (MyCustomException ex)
{
Debug.WriteLine(ex.ToString());
}
Sample output:
Consol...
call a static method inside a class?
how do i call a static method from another method inside the same class?
4 Answers
4
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Macro vs Function in C
...uct webpage page;
page.numButtons = 2;
num_button_holes(page) -> 8
Finally, macros can be difficult to debug, producing weird syntax errors or runtime errors that you have to expand to understand (e.g. with gcc -E), because debuggers cannot step through macros, as in this example:
#define prin...
How can I make gdb save the command history?
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@Frank How about if I type n then I arrow up key, I get all previous commands that start with n.
– SIFE
Jan 27 '13 at 0:09
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Show filename and line number in grep output
...ly and used this example command: grep -Hnor "localhost" . This listet up all matches with file name and line number, short and concise.
– Tore Aurstad
Sep 10 '18 at 8:25
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How to optimize imports automatically after each save in IntelliJ IDEA
I want to learn how can I automatically optimize imports after each save as we do Eclipse( save actions ).
4 Answers
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Convert a String In C++ To Upper Case
...orm extremely badly with g++ 5.2 -O3, and Boost 1.58 (like 30x worse than calling glibc's toupper in a loop.) There's a dynamic_cast of the locale that doesn't get hoisted out of the per-char loop. See my answer. On the plus side, this may be properly UTF-8 aware, but the slowdown doesn't come fr...