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/******************************************************************************
* $Id: cpl_strtod.cpp 21653 2011-02-08 20:01:32Z warmerdam $
*
* Project: CPL - Common Portability Library
* Purpose: Functions to convert ASCII string to floating point number.
* Author: Andrey Kiselev, dron@ak4719.spb.edu.
* Frank Warmerdam, warmerdam@pobox.com
*
* This file is derived from GDAL's port/cpl_strtod.cpp.
*
******************************************************************************
* Copyright (c) 2006, Andrey Kiselev
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include <locale.h>
#include <errno.h>
#include <stdlib.h>
#include "geo_tiffp.h"
#include "cpl_serv.h"
#ifndef NAN
# ifdef HUGE_VAL
# define NAN (HUGE_VAL * 0.0)
# else
static float CPLNaN(void)
{
float fNan;
int nNan = 0x7FC00000;
memcpy(&fNan, &nNan, 4);
return fNan;
}
# define NAN CPLNan()
# endif
#endif
/************************************************************************/
/* _ReplacePointByLocalePoint() */
/************************************************************************/
static void _ReplacePointByLocalePoint(char* pszNumber, char point)
{
#if defined(WIN32CE) || defined(__ANDROID__)
static char byPoint = 0;
if (byPoint == 0)
{
char szBuf[16];
sprintf(szBuf, "%.1f", 1.0);
byPoint = szBuf[1];
}
if (point != byPoint)
{
int i = 0;
while ( pszNumber[i] )
{
if ( pszNumber[i] == point )
{
pszNumber[i] = byPoint;
break;
}
i++;
}
}
#else
struct lconv *poLconv = localeconv();
if ( poLconv
&& poLconv->decimal_point
&& strlen(poLconv->decimal_point) > 0 )
{
int i = 0;
char byPoint = poLconv->decimal_point[0];
if (point != byPoint)
{
while ( pszNumber[i] )
{
if ( pszNumber[i] == point )
{
pszNumber[i] = byPoint;
break;
}
i++;
}
}
}
#endif
}
/************************************************************************/
/* _StrtodDelim() */
/************************************************************************/
static double _StrtodDelim(const char *nptr, char **endptr, char point)
{
if (EQUAL(nptr,"nan") || EQUAL(nptr, "1.#QNAN") ||
EQUAL(nptr, "-1.#QNAN") || EQUAL(nptr, "-1.#IND"))
return NAN;
/* -------------------------------------------------------------------- */
/* We are implementing a simple method here: copy the input string */
/* into the temporary buffer, replace the specified decimal delimiter */
/* with the one, taken from locale settings and use standard strtod() */
/* on that buffer. */
/* -------------------------------------------------------------------- */
char *pszNumber = CPLStrdup( nptr );
double dfValue;
int nError;
_ReplacePointByLocalePoint(pszNumber, point);
dfValue = strtod( pszNumber, endptr );
nError = errno;
if ( endptr )
*endptr = (char *)nptr + (*endptr - pszNumber);
CPLFree( pszNumber );
errno = nError;
return dfValue;
}
/************************************************************************/
/* GTIFStrtod() */
/************************************************************************/
double GTIFStrtod(const char *nptr, char **endptr)
{
return _StrtodDelim(nptr, endptr, '.');
}
/************************************************************************/
/* GTIFAtof() */
/************************************************************************/
double GTIFAtof(const char *nptr)
{
return GTIFStrtod(nptr, 0);
}
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