Imported from ../bash-2.05a.tar.gz.

lib/sh/strtoimax.c

@@ -0,0 +1,102 @@
+/* Convert string representation of a number into an intmax_t value.
+   Copyright 1999, 2001 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Written by Paul Eggert.  Modified by Chet Ramey for Bash. */
+
+#if HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#if HAVE_INTTYPES_H
+#  include <inttypes.h>
+#endif
+
+#if HAVE_STDLIB_H
+#  include <stdlib.h>
+#endif
+
+#include <stdc.h>
+
+/* Verify a requirement at compile-time (unlike assert, which is runtime).  */
+#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
+
+#ifndef HAVE_DECL_STRTOL
+"this configure-time declaration test was not run"
+#endif
+#if !HAVE_DECL_STRTOL
+extern long strtol __P((const char *, char **, int));
+#endif
+
+#ifndef HAVE_DECL_STRTOLL
+"this configure-time declaration test was not run"
+#endif
+#if !HAVE_DECL_STRTOLL && HAVE_LONG_LONG
+extern long long strtoll __P((const char *, char **, int));
+#endif
+
+intmax_t
+strtoimax (ptr, endptr, base)
+     const char *ptr;
+     char **endptr;
+     int base;
+{
+#if HAVE_LONG_LONG
+  verify(size_is_that_of_long_or_long_long,
+	 (sizeof (intmax_t) == sizeof (long) ||
+	  sizeof (intmax_t) == sizeof (long long)));
+
+  if (sizeof (intmax_t) != sizeof (long))
+    return (strtoll (ptr, endptr, base));
+#else
+  verify (size_is_that_of_long, sizeof (intmax_t) == sizeof (long));
+#endif
+
+  return (strtol (ptr, endptr, base));
+}
+
+#ifdef TESTING
+# include <stdio.h>
+int
+main ()
+{
+  char *p, *endptr;
+  intmax_t x;
+#if HAVE_LONG_LONG
+  long long y;
+#endif
+  long z;
+  
+  printf ("sizeof intmax_t: %d\n", sizeof (intmax_t));
+
+#if HAVE_LONG_LONG
+  printf ("sizeof long long: %d\n", sizeof (long long));
+#endif
+  printf ("sizeof long: %d\n", sizeof (long));
+
+  x = strtoimax("42", &endptr, 10);
+#if HAVE_LONG_LONG
+  y = strtoll("42", &endptr, 10);
+#else
+  y = -1;
+#endif
+  z = strtol("42", &endptr, 10);
+
+  printf ("%lld %lld %ld\n", x, y, z);
+
+  exit (0);
+}
+#endif