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2011-01-31 Ralf Corsepius <ralf.corsepius@rtems.org>

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* libmisc/stringto/stringtoint.c,
	libmisc/stringto/stringtounsignedint.c,
	libmisc/stringto/stringtounsignedchar.c: Rework.
This commit is contained in:
Ralf Corsepius
2011-01-31 16:25:13 +00:00
parent 10df690794
commit 0e867af11e
4 changed files with 162 additions and 19 deletions
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63
cpukit/libmisc/stringto/stringtoint.c
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@@ -2,6 +2,8 @@
* COPYRIGHT (c) 2009.
* On-Line Applications Research Corporation (OAR).
*
* Copyright (c) 2011 Ralf Corsépius, Ulm, Germany.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
@@ -13,12 +15,61 @@
#include "config.h"
#endif
#include <errno.h>
#include <stdlib.h>
#include <limits.h>
#include <rtems/stringto.h>
/*
* Instantiate an error checking wrapper for strtol (int)
*/
#define STRING_TO_INTEGER
#define STRING_TO_TYPE int
#define STRING_TO_NAME rtems_string_to_int
#define STRING_TO_METHOD strtol
#define STRING_TO_MAX LONG_MAX
#include "stringto_template.h"
rtems_status_code rtems_string_to_int (
const char *s,
int *n,
char **endptr,
int base
)
{
long result;
char *end;
if ( !n )
return RTEMS_INVALID_ADDRESS;
errno = 0;
*n = 0;
result = strtol( s, &end, base );
if ( endptr )
*endptr = end;
if ( end == s )
return RTEMS_NOT_DEFINED;
if ( (result == LONG_MAX) && (errno == ERANGE) )
return RTEMS_INVALID_NUMBER;
if ( (result == LONG_MIN) && (errno == ERANGE) )
return RTEMS_INVALID_NUMBER;
#if (INT_MAX < LONG_MAX)
if ( result > INT_MAX ) {
errno = ERANGE;
return RTEMS_INVALID_NUMBER;
}
#endif
#if (INT_MIN < LONG_MIN)
if ( result < INT_MIN ) {
errno = ERANGE;
return RTEMS_INVALID_NUMBER;
}
#endif
*n = result;
return RTEMS_SUCCESSFUL;
}