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How does `is_base_of` work?
...going to be my favorite answer ever... a question: have you read the whole C++ standard or are you just working in the C++ committee?? Congratulations!
– Marco A.
Feb 2 '14 at 17:58
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In C# what is the difference between a destructor and a Finalize method in a class?
...icle.
C# really doesn't have a "true" destructor. The syntax resembles a C++ destructor, but it really is a finalizer. You wrote it correctly in the first part of your example:
~ClassName() { }
The above is syntactic sugar for a Finalize function. It ensures that the finalizers in the base ar...
What is external linkage and internal linkage?
...also put classes. The linkage for anonymous namespaces has changed between C++98 and C++11 but the main thing is that they are unreachable from other translation units.
namespace {
int i; // external linkage but unreachable from other translation units.
class invisible_to_others { };
}
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Why do most C developers use define instead of const? [duplicate]
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+1 for correct answer among a sea of wrong ones from C++ coders who don't know C.
– R.. GitHub STOP HELPING ICE
Oct 26 '10 at 13:59
3
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What are the undocumented features and limitations of the Windows FINDSTR command?
.... Otherwise all search strings are treated as literals. For example, "51.4 200" will be treated as two regular expressions because the first string contains an un-escaped dot, whereas "200 51.4" will be treated as two literals because the first string does not contain any meta-characters.
/G:file - ...
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),
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Undefined reference to static constexpr char[]
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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...
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 to generate a number of most distinctive colors in R?
...ces::colors(), invert = T)]
pie(rep(1,n), col=sample(color, n))
with 200 colors n = 200:
pie(rep(1,n), col=sample(color, n))
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