23 lines
654 B
C
23 lines
654 B
C
|
#include <limits.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
int main(void){
|
||
|
|
|
||
|
|
// the length of the args of exec()
|
||
|
|
printf("%d\n", _POSIX_ARG_MAX);
|
||
|
|
// the num of child process under a real user id
|
||
|
|
printf("%d\n", _POSIX_CHILD_MAX);
|
||
|
|
// some var about file and path
|
||
|
|
printf("%d %d %d\n", _POSIX_OPEN_MAX, _POSIX_NAME_MAX, _POSIX_PATH_MAX);
|
||
|
|
// something further
|
||
|
|
printf("%d %d %d\n", _POSIX_LOGIN_NAME_MAX, _POSIX_MAX_CANON, _POSIX_MAX_INPUT);
|
||
|
|
// more
|
||
|
|
printf("%d %d %d\n", _POSIX_SSIZE_MAX, _POSIX_SEM_NSEMS_MAX, _POSIX_TIMER_MAX);
|
||
|
|
|
||
|
|
// different between the real value and define value
|
||
|
|
printf("%d %d\n", _POSIX_TTY_NAME_MAX, TTY_NAME_MAX);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|