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public friend swap member function
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What is a friend function? There is confusion around this area.
Before C++ was standardized, friend functions did something called "friend name injection", where the code behaved as if if the function had been written in the surrounding namespace. For example, these were equivalent pre-standard:...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...rd->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))
return EXCEPTION_EXECUTE_HANDLER; //执行处理
return EXCEPTON_CONTINUE_SEARCH;
}
/* ...
Is “else if” faster than “switch() case”? [duplicate]
...55565 seconds. The published winning C# solution takes 0.166 seconds, with C++ in second place at 429.46 seconds to find the incorrect answer. And CLR is inherently slow? Hmmm... I don't think so Tim ;-)
– corlettk
May 18 '09 at 11:58
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When to use std::forward to forward arguments?
C++0x shows an example of using std::forward :
3 Answers
3
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Is “inline” without “static” or “extern” ever useful in C99?
...ion specifiers
A new feature of C99: The inline keyword, adapted from C++, is a function-specifier that
can be used only in function declarations. It is useful for program optimizations that require the
definition of a function to be visible at the site of a call. (Note that the Standard do...
to_string is not a member of std, says g++ (mingw)
...would would be flashed at me randomly for meanings. I want to use standard C++ library as Bjarne Stroustroup tells us, but I have encountered a seemingly strange problem right out of the gate.
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Should I use int or Int32
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For those of you with the old C++ mindset, IntPtr is designed to be 32 bits on a 32 bit OS and 64 bits on a 64 bit OS. This behavior is specifically mentioned in its summary tag. msdn.microsoft.com/en-us/library/system.intptr(VS.71).aspx
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How can I get the max (or min) value in a vector?
How can I get the max (or min) value in a vector in C++ ?
10 Answers
10
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How does delete[] know it's an array?
...over-allocating enough to store the array size. For more details, see the C++ Super FAQ.
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What is meant by 'first class object'?
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But I can do this in C++: int twice(int x) { return x << 1; } int (*f)(int) = twice; std::cout<<(*f)(5)<<std::endl; Does that mean C++ treats functions as first class objects (with a funny syntax)?
– Thoma...