问题
What would be the reason to use an NSInteger vs an int in iPhone programming? Thanks.
回答1:
An NSInteger
is just a typedef with the following definition:
#if __LP64__ || NS_BUILD_32_LIKE_64
typedef long NSInteger;
typedef unsigned long NSUInteger;
#else
typedef int NSInteger;
typedef unsigned int NSUInteger;
#endif
As the typedef is defined differently basing on the platform, you can keep using NSInteger
independently from the platform.
来源:https://stackoverflow.com/questions/1934719/nsinteger-versus-int