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C default arguments
...in the header file */
#ifdef __cplusplus
/* in case the compiler is a C++ compiler */
#define DEFAULT_VALUE(value) = value
#else
/* otherwise, C compiler, do nothing */
#define DEFAULT_VALUE(value)
#endif
void window_set_size(unsigned int width DEFAULT_VALUE(640),
...
Undefined reference to static constexpr char[]
...
C++17 introduces inline variables
C++17 fixes this problem for constexpr static member variables requiring an out-of-line definition if it was odr-used. See the second half of this answer for pre-C++17 details.
Proposal P03...
Why is ArrayDeque better than LinkedList
...
Chris Jester-YoungChris Jester-Young
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What exactly do “IB” and “UB” mean?
...the terms "IB" and "UB" used several times, particularly in the context of C++. I've tried googling them, but apparently those two-letter combinations see a lot of use. :P
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When should I really use noexcept?
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@Pubby C++ exception handling is usually done with no overhead except jump tables which map potentially throwing call site addresses to handler entry points. Removing those tables is as close as it gets to removing exception handlin...
How can I detect the touch event of an UIImageView?
...e.
UIImageView *single_view = [[UIImageView alloc]initWithFrame:CGRectMake(200, 200, 100, 100)];
single_view.image = img;
single_view.layer.zPosition = 4;
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapGestureCaptured:)];
[single_vi...
static constructors in C++? I need to initialize private static objects
...public:
StaticStuff()
{
for (char c = 'a'; c <= 'z'; c++)
letters_.push_back(c);
}
// provide some way to get at letters_
};
class Elsewhere
{
static StaticStuff staticStuff; // constructor runs once, single instance
};
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Why do objects of the same class have access to each other's private data?
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Because that's how it works in C++. In C++ access control works on per-class basis, not on per-object basis.
Access control in C++ is implemented as a static, compile-time feature. I think it is rather obvious that it is not really possible to implement a...
Is there a way to use PhantomJS in Python?
...a_resources = ghost.open("http://jeanphi.me")
assert page.http_status==200 and 'jeanphix' in ghost.content
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Validating IPv4 addresses with regexp
...ternation otherwise the (\.|$) is only required if the number is less than 200.
'\b((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.|$)){4}\b'
^ ^
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