2015年10月6日 · The behavior of the return statement is defined by the ISO C standard. Quoting the N1570 draft, section 6.8.6.4: A return statement terminates execution of the current …

2014年3月24日 · What does return 0, return 1, exit(0) do in the above program? exit(0) will exit total program and control comes out of loop but what happens in case of return 0 , return 1 , …

2016年9月24日 · Here is some background on the return value, based on [stmt.return] in the C++ Standard: For a function that returns by value (i.e. the return type is not a reference and not …

2009年1月4日 · For example, the code after the first return here can never be executed: int F() { return 1; return 2; // Can never be executed } In contrast, the code after the first yield return …

2019年3月19日 · const char * myFunction() { return "my String"; } Background: It's so fundamental to C & C++, but little more discussion should be in order. In C (& C++ for that matter), a string …

2015年5月28日 · In C, you must use enum Foo until you provide a typedef for it. And then, when you refer to BAR, you do not use Foo.BAR but just BAR. All enumeration constants share the …

Im fairly new to coding in C and currently im trying to create a function that returns a c string/char array and assigning to a variable. So far, ive observed that returning a char * is the most …

This is C, you have to be deterministic upfront unless you have time to play the pain of pointer, address, malloc, free, etc, for just a simple function return. Cheers. – KokoEfraim

Depending on what you're doing (OP never clarified if this is actually a C question), allocation might be a concern, but it usually isn't in C++ land (return value optimization saves all of this) …

2013年7月10日 · (C) If I have a function that contains an if which, if the condition is true can then return a certain value an then else return a different value. Is it more or less efficient to use an …