-#ifdef HAVE_CONFIG_H
-#include <config.h>
+/* A more useful interface to strtol.
+ Copyright (C) 1995, 1996, 1998 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 Jim Meyering. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
#endif
-#ifdef STDC_HEADERS
-#include <stdlib.h>
+#if STDC_HEADERS
+# include <stdlib.h>
#endif
-#ifdef HAVE_STRING_H
+#if HAVE_STRING_H
# include <string.h>
#else
# include <strings.h>
#endif
#if HAVE_LIMITS_H
-#include <limits.h>
+# include <limits.h>
+#endif
+
+#ifndef CHAR_BIT
+# define CHAR_BIT 8
#endif
+/* The extra casts work around common compiler bugs. */
+#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
+ It is necessary at least when t == time_t. */
+#define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
+ ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
+#define TYPE_MAXIMUM(t) (~ (t) 0 - TYPE_MINIMUM (t))
+
#ifndef ULONG_MAX
-#define ULONG_MAX ((unsigned long) ~(unsigned long) 0)
+# define ULONG_MAX TYPE_MAXIMUM (unsigned long int)
#endif
#ifndef LONG_MAX
-#define LONG_MAX ((long int) (ULONG_MAX >> 1))
+# define LONG_MAX TYPE_MAXIMUM (long int)
#endif
#include "xstrtol.h"
return LONGINT_OVERFLOW;
if (*p == s)
return LONGINT_INVALID;
+
+ /* Let valid_suffixes == NULL mean `allow any suffix'. */
+ /* FIXME: update all callers except the one in tail.c changing
+ last parameter NULL to `""'. */
if (!valid_suffixes)
{
- if (**p == '\0')
- {
- *val = tmp;
- return LONGINT_OK;
- }
- else
- return LONGINT_INVALID_SUFFIX_CHAR;
+ *val = tmp;
+ return LONGINT_OK;
}
- if (**p != '\0' && strchr (valid_suffixes, **p))
+ if (**p != '\0')
{
+ if (!strchr (valid_suffixes, **p))
+ return LONGINT_INVALID_SUFFIX_CHAR;
+
switch (**p)
{
case 'b':
#ifdef TESTING_XSTRTO
-#include <stdio.h>
-#include "error.h"
+# include <stdio.h>
+# include "error.h"
char *program_name;
}
exit (0);
}
+
#endif /* TESTING_XSTRTO */