大约有 4,041 项符合查询结果(耗时:0.0185秒) [XML]

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... 

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... 

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

How to concatenate two strings in C++?

... Since it's C++ why not to use std::string instead of char*? Concatenation will be trivial: std::string str = "abc"; str += "another"; share | ...
https://stackoverflow.com/ques... 

How to remove all the occurrences of a char in c++ string

I am using following: 10 Answers 10 ...
https://stackoverflow.com/ques... 

How to convert std::string to LPCWSTR in C++ (Unicode)

... (Found this question browsing randomly; it's been a long time since I did C++.) So the standard library doesn't have std::string -> std::wstring conversion? That seems weird; is there a good reason? – Domenic Jul 29 '09 at 8:41 ...
https://stackoverflow.com/ques... 

Is Java a Compiled or an Interpreted programming language ?

In the past I have used C++ as a programming language. I know that the code written in C++ goes through a compilation process until it becomes object code "machine code". ...