I\'d like to use the following idiom, that I think is non-standard. I have functions which return vectors taking advantage of Return Value Optimization:
Why can\'t I use the function ColPeekHeight() as an l-value? class View { public: int ColPeekHeight(){ return _colPeekFaceUpHeight; }
Can anybody explain to me why there is a difference between these two statements? class A{}; const A& a = A();// correct
A function call returning a structure is an rvalue expression, but what about its members? This piece of code works well with my g++ compiler, but gcc gives a error saying \"lvalue required as left op
I want to create a substr method in C++ in a string class that I made. The string class is ba开发者_Python百科sed on C-style string of course, and I take care of the memory management.
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