Can you please explain me the difference between mechanism of the 开发者_Go百科following: int function();
I believe the expression T() creates an rvalue (by the Standard).However, the following code compiles (at least on gcc4.0):
Can anybody explain to me why there is a difference between these two statements? class A{}; const A& a = A();// correct
§5.3.1 Unary operators, Section 3 The result of the unary & operator is a pointer to its operand. The operand shall be an lvalue or a qualified-id.
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
§3.10 section 9 says \"non-class rvalues always have cv-unqualified types\". That made me wonder... int foo()
I have been coding in C++ for past few years. But there is one question that I have not been able to figure out. I want to ask, are 开发者_如何学JAVAall temporaries in C++, rvalues?
in C, i have this code piece: 开发者_JS百科int a; a = 10 + 5 - 3 I want to ask: where is (10+5-3) stored at?
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