/* A more useful interface to strtol.
- Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+ 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
/* Written by Jim Meyering. */
#if HAVE_CONFIG_H
-#include <config.h>
+# include <config.h>
#endif
#if STDC_HEADERS
-#include <stdlib.h>
+# include <stdlib.h>
#endif
#if HAVE_STRING_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')
#ifdef TESTING_XSTRTO
-#include <stdio.h>
-#include "error.h"
+# include <stdio.h>
+# include "error.h"
char *program_name;
}
exit (0);
}
+
#endif /* TESTING_XSTRTO */