long_32_64.c

#ifdef SHELL
gcc  $0 && ./a.out
gcc  -m32 $0 && ./a.out
exit 0
#endif

#include <stdio.h>

void nb1() {
   char * str = "999999999999";
   printf("nb2 = %ld\n", atol(str));
}

void nb2() {
   char * str = "999999999999";
   printf("nb3 = %lld\n", atoll(str));
}
 
int main( int argc, char * argv [] ) {
   printf("LONG_MAX = %ld\n", LONG_MAX );
   printf("LONG_LONG_MAX = %ll\n", LONG_LONG_MAX );
   nb1();
   nb2();
}