大约有 4,600 项符合查询结果(耗时:0.0236秒) [XML]

https://stackoverflow.com/ques... 

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? ...
https://stackoverflow.com/ques... 

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 5 ...
https://stackoverflow.com/ques... 

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? ...
https://stackoverflow.com/ques... 

c++11 Return value optimization or move? [duplicate]

... 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...
https://stackoverflow.com/ques... 

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 ...
https://stackoverflow.com/ques... 

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. ...
https://stackoverflow.com/ques... 

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...
https://stackoverflow.com/ques... 

Checking if a folder exists (and creating folders) in Qt, C++

... Not the answer you're looking for? Browse other questions tagged c++ qt filesystems or ask your own question.
https://stackoverflow.com/ques... 

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 ...
https://stackoverflow.com/ques... 

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...