#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>

int main(void)
{
	int value = sysconf(_SC_GETPW_R_SIZE_MAX);
	fprintf(stderr,"sysconf(_SC_GETPW_R_SIZE_MAX) retourne : %d errno %d  _SC_GETPW_R_SIZE_MAX %d \n", value,
	 errno, _SC_GETPW_R_SIZE_MAX) ;
	return EXIT_SUCCESS;
}