source: downloads/tcl8.5.2/compat/fixstrtod.c @ 47

/* 
 * fixstrtod.c --
 *
 *      Source code for the "fixstrtod" procedure.  This procedure is
 *      used in place of strtod under Solaris 2.4, in order to fix
 *      a bug where the "end" pointer gets set incorrectly.
 *
 * Copyright (c) 1995 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: fixstrtod.c,v 1.3 2007/04/16 13:36:34 dkf Exp $
 */

#include <stdio.h>

#undef strtod

/*
 * Declare strtod explicitly rather than including stdlib.h, since in
 * somes systems (e.g. SunOS 4.1.4) stdlib.h doesn't declare strtod.
 */

extern double strtod(char *, char **);

double
fixstrtod(
    char *string,
    char **endPtr)
{
    double d;
    d = strtod(string, endPtr);
    if ((endPtr != NULL) && (*endPtr != string) && ((*endPtr)[-1] == 0)) {
        *endPtr -= 1;
    }
    return d;
}