printf 与c的基本类型之间的关系

型	書式	注意事項
ssize_t	%zd
size_t	%zu
intmax_t	%jd
uintmax_t	%ju
ptrdiff_t	%t
signed char	%hhd
unsigned char	%hhu
short int	%hd
unsigned short int	%hu
int	%d
unsigned int	%u
long int	%ld
unsigned long int	%lu
long long int	%lld
unsigned long long int	%llu
int32_t	%PRId32	以下，#include <inttypes.h> が必要(下記参照)
uint32_t	%PRIu32
int64_t	%PRId64
uint64_t	%PRIu64