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Remove spaces from std::string in C++
What is the preferred way to remove spaces from a string in C++? I could loop through all the characters and build a new string, but is there a better way?
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How well is Unicode supported in C++11?
I've read and heard that C++11 supports Unicode. A few questions on that:
5 Answers
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C++ static virtual members?
Is it possible in C++ to have a member function that is both static and virtual ? Apparently, there isn't a straightforward way to do it ( static virtual member(); is a compile error), but is there at least a way to achieve the same effect?
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c++11 Return value optimization or move? [duplicate]
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GCC documentation on -fno-elide-constructors: "The C++ standard allows an implementation to omit creating a temporary that is only used to initialize another object of the same type. Specifying this option disables that optimization, and forces G++ to call the copy constructo...
Passing references to pointers in C++
...ere's no reason I shouldn't be allowed to pass a reference to a pointer in C++. However, my attempts to do so are failing, and I have no idea why.
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Determining 32 vs 64 bit in C++
I'm looking for a way to reliably determine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we ...
What does “dereferencing” a pointer mean?
...rested in the pointed-to object's (current) value - I focus below on C and C++.
A pointer scenario
Consider in C, given a pointer such as p below...
const char* p = "abc";
...four bytes with the numerical values used to encode the letters 'a', 'b', 'c', and a 0 byte to denote the end of the tex...
Checking if a folder exists (and creating folders) in Qt, C++
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C++: Rounding up to the nearest multiple of a number
...s? What about negative numbers? The behaviour seems to be undefined in pre-C++11.
– cubuspl42
Aug 18 '15 at 16:28
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Why sizeof int is wrong, while sizeof(int) is right?
...ty of sizeof (int *) + 1. It is (sizeof(int*))+1, not sizeof((int*)(+1)).
C++ has a somewhat similar issue to resolve with function-style cast syntax. You can write int(0) and you can write typedef int *intptr; intptr(0);, but you can't write int*(0). In that case, the resolution is that the "naked...