65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/* Wide char wrapper for strtof
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* Revision history:
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* 25 Aug 2006 Initial version.
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*
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* Contributor: Danny Smith <dannysmith@users.sourceforege.net>
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*/
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/* This routine has been placed in the public domain.*/
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <locale.h>
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#include <wchar.h>
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#include <stdlib.h>
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#include <string.h>
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#include <mbstring.h>
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#include "mb_wc_common.h"
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float wcstof (const wchar_t * __restrict__ wcs, wchar_t ** __restrict__ wcse)
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{
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char * cs;
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char * cse;
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unsigned int i;
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float ret;
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const unsigned int cp = get_codepage ();
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/* Allocate enough room for (possibly) mb chars */
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cs = (char *) malloc ((wcslen(wcs)+1) * MB_CUR_MAX);
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if (cp == 0) /* C locale */
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{
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for (i = 0; (wcs[i] != 0) && wcs[i] <= 255; i++)
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cs[i] = (char) wcs[i];
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cs[i] = '\0';
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}
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else
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{
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int nbytes = -1;
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int mb_len = 0;
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/* loop through till we hit null or invalid character */
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for (i = 0; (wcs[i] != 0) && (nbytes != 0); i++)
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{
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nbytes = WideCharToMultiByte(cp, WC_COMPOSITECHECK | WC_SEPCHARS,
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wcs + i, 1, cs + mb_len, MB_CUR_MAX,
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NULL, NULL);
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mb_len += nbytes;
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}
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cs[mb_len] = '\0';
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}
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ret = strtof (cs, &cse);
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if (wcse)
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{
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/* Make sure temp mbstring cs has 0 at cse. */
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*cse = '\0';
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i = _mbslen ((unsigned char*) cs); /* Number of chars, not bytes */
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*wcse = (wchar_t *) wcs + i;
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}
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free (cs);
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return ret;
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}
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