ocaml/config/auto-aux/longlong.c

42 lines
1.6 KiB
C

/***********************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
#include <stdio.h>
#include <string.h>
/* Check for the availability of "long long" type as per ISO C9X */
/* Meaning of return code:
0 long long OK, printf with %ll
1 long long OK, printf with %q
2 long long OK, no printf
3 long long not suitable */
int main(int argc, char **argv)
{
long long l;
unsigned long long u;
char buffer[64];
if (sizeof(long long) != 8) return 3;
l = 123456789123456789LL;
buffer[0] = '\0';
sprintf(buffer, "%lld", l);
if (strcmp(buffer, "123456789123456789") == 0) return 0;
/* the MacOS X library uses qd to format long longs */
buffer[0] = '\0';
sprintf (buffer, "%qd", l);
if (strcmp (buffer, "123456789123456789") == 0) return 1;
return 2;
}