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