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How do I check OS with a preprocessor directive?
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307
The Predefined Macros for OS site has a very complete list of checks. Here are a few of them, ...
Default value to a parameter while passing by reference in C++
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3
boost::array to the rescue void f(int &x = boost::array<int,1>()[0]) { .. } :)
– Johannes Schaub - litb
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Generating all permutations of a given string
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Eric Leschinski
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answered Nov 21 '10 at 20:59
SuperJuliettaSuperJulietta
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(this == null) in C#!
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73
This observation has been posted on StackOverflow in another question earlier today.
Marc's gr...
How can I search sub-folders using glob.glob module?
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In Python 3.5 and newer use the new recursive **/ functionality:
configfiles = glob.glob('C:/Users/sam/Desktop/file1/**/*.txt', recursive=True)
When recursive is set, ** followed by a path separator matches 0 or more subdirectories....
Git on Windows: How do you set up a mergetool?
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309
To follow-up on Charles Bailey's answer, here's my git setup that's using p4merge (free cross-...
Effects of the extern keyword on C functions
...id)
{
while (! stop_now) {
printf("Hello, world!\n");
sleep(30);
}
}
As you can see, we have no shared header between foo.c and bar.c , however bar.c needs something declared in foo.c when it's linked, and foo.c needs a function from bar.c when it's linked.
By using 'extern', yo...
Deleting elements from std::set while iterating
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This is implementation dependent:
Standard 23.1.2.8:
The insert members shall not affect the validity of iterators and references to the container, and the erase members shall invalidate only iterators and references to the erased elements.
Maybe you could try th...
Checking if a double (or float) is NaN in C++
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357
According to the IEEE standard, NaN values have the odd property that comparisons involving th...
How do I best silence a warning about unused variables?
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331
You can put it in "(void)var;" expression (does nothing) so that a compiler sees it is used. T...