_mbctolower, _mbctolower_l, _mbctoupper, _mbctoupper_l
Tests and converts the case of a multibyte character.
Important
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This API cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported with /ZW. |
unsigned int _mbctolower( unsigned int c ); unsigned int _mbctolower_l( unsigned int c, _locale_t locale ); unsigned int _mbctoupper( unsigned int c ); unsigned int _mbctoupper_l( unsigned int c, _locale_t locale );
The functions test a character c and, if possible, apply one of the following conversions.
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Routines |
Converts |
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_mbctolower,_mbctolower_l |
Uppercase character to lowercase character. |
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_mbctoupper,_mbctoupper_l |
Lowercase character to uppercase character. |
The output value is affected by the setting of the LC_CTYPE category setting of the locale; see setlocale for more information. The version of this function without the _l suffix uses the current locale for this locale-dependent behavior; the version with the _l suffix is identical except that it uses the locale parameter passed in instead. For more information, see Locale.
In previous versions, _mbctolower was calledjtolower, and _mbctoupper was called jtoupper. For new code, use the new names instead.
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Tchar.h routine |
_UNICODE and _MBCS not defined |
_MBCS defined |
_UNICODE defined |
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_totlower |
tolower |
_mbctolower |
towlower |
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_totlower_l |
_tolower_l |
_mbctolower_l |
_towlower_t |
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_totupper |
toupper |
_mbctoupper |
towupper |
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_totupper_l |
toupper_l |
_mbctoupper_l |
_towupper_l |
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Routines |
Required header |
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_mbctolower,_mbctolower_l |
<mbstring.h> |
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_mbctoupper,_mbctoupper_l |
<mbstring.h> |
For more compatibility information, see Compatibility in the Introduction.
