_mbctolower, _mbctolower_l, _mbctoupper, _mbctoupper_l
Tests and converts the case of a multibyte character.
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.
Routines | Converts |
|---|---|
_mbctolower,_mbctolower_l | Uppercase character to lowercase character. |
_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 called jtolower, and _mbctoupper was called jtoupper. For new code, use the new names instead.
Tchar.h routine | _UNICODE and _MBCS not defined | _MBCS defined | _UNICODE defined |
|---|---|---|---|
_totlower | tolower | _mbctolower | towlower |
_totlower_l | _tolower_l | _mbctolower_l | _towlower_t |
_totupper | toupper | _mbctoupper | towupper |
_totupper_l | toupper_l | _mbctoupper_l | _towupper_l |
Routines | Required header |
|---|---|
_mbctolower,_mbctolower_l | <mbstring.h> |
_mbctoupper,_mbctoupper_l | <mbstring.h> |
For more compatibility information, see Compatibility in the Introduction.
