size_t

[Marcin Kalicinski]

Is size_t guaranteed to be in the global namespace, or should I use
std::size_t?

 

[Frederick Gotham]

Marcin Kalicinski posted:

Is size_t guaranteed to be in the global namespace, or should I use
std::size_t?

If you do:

#include <cstddef>

, then it's in the namespace "std". Because of this, you must either write:

std::size_t Func();

or perhaps:

using std::size_t;

size_t Func();

or:

using namespace std;


If you include <stddef.h> then it's in the global namespace (but it's
generally frowned upon to use the C headers in a C++ source file.)