2011-02-01 Ralf Corsepius <ralf.corsepius@rtems.org>

* libmisc/stringto/stringtodouble.c,
	libmisc/stringto/stringtofloat.c: Rework.

cpukit/libmisc/stringto/stringtofloat.c

@@ -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 +15,45 @@
 #include "config.h"
 #endif
 
+#include <errno.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include <rtems/stringto.h>
+
 /*
  *  Instantiate an error checking wrapper for strtof (float)
  */
-#define STRING_TO_FLOAT
-#define STRING_TO_TYPE float
-#define STRING_TO_NAME rtems_string_to_float
-#define STRING_TO_METHOD strtof
-#define STRING_TO_MAX HUGE_VALF
-#include "stringto_template.h"
+
+rtems_status_code rtems_string_to_float (
+  const char *s,
+  float *n,
+  char **endptr
+)
+{
+  float result;
+  char *end;
+
+  if ( !n )
+    return RTEMS_INVALID_ADDRESS;
+
+  errno = 0;
+  *n = 0;
+
+  result = strtof( s, &end );
+
+  if ( endptr )
+    *endptr = end;
+
+  if ( end == s )
+    return RTEMS_NOT_DEFINED;
+
+  if ( (result == HUGE_VALF) && (errno == ERANGE))
+      return RTEMS_INVALID_NUMBER;
+  if ( (result == 0) && (errno == ERANGE))
+      return RTEMS_INVALID_NUMBER;
+
+  *n = result;
+
+  return RTEMS_SUCCESSFUL;
+}