问题
Possible Duplicate:
Difference between different integer types
What is the difference between uint32 and uint32_t in C/C++?
Are they OS dependent?
In which case should I use one or another?
Thanks
回答1:
uint32_t is standard, uint32 is not. That is, if you include <inttypes.h> or <stdint.h>, you will get a definition of uint32_t. uint32 is a typedef in some local code base, but you should not expect it to exist unless you define it yourself. And defining it yourself is a bad idea.
回答2:
uint32_t is defined in the standard, in
18.4.1 Header <cstdint> synopsis [cstdint.syn]
namespace std {
//...
typedef unsigned integer type uint32_t; // optional
//...
}
uint32 is not, it's a shortcut provided by some compilers (probably as typedef uint32_t uint32) for ease of use.
来源：https://stackoverflow.com/questions/13362084/difference-between-uint32-and-uint32-t