tolower, _tolower, towlower, _tolower_l, _towlower_l
Converts a character to lowercase.
int tolower( int c ); int _tolower( int c ); int towlower( wint_t c ); int _tolower_l( int c, _locale_t locale ); int _towlower_l( wint_t c, _locale_t locale );
Character to convert.
Locale to use for locale-specific translation.
Each of these routines converts a copy of c to lower case if the conversion is possible, and returns the result. There is no return value reserved to indicate an error.
Each of these routines converts a given uppercase letter to a lowercase letter if it is possible and relevant. The case conversion of towlower is locale-specific. Only the characters relevant to the current locale are changed in case. The functions without the _l suffix use the currently set locale. The versions of these functions that have the _l suffix take the locale as a parameter and use that instead of the currently set locale. For more information, see Locale.
By default, this function's global state is scoped to the application. To change this, see Global state in the CRT.
Generic-Text Routine Mappings
|TCHAR.H routine||_UNICODE & _MBCS not defined||_MBCS defined||_UNICODE defined|
_tolower_l and _towlower_l have no locale dependence and are not meant to be called directly. They are provided for internal use by _totlower_l.
|towlower||<ctype.h> or <wchar.h>|
For additional compatibility information, see Compatibility.
See the example in to Functions.