_strupr, _wcsupr, _mbsupr
Convert a string to uppercase.
char *_strupr( char *string ); wchar_t *_wcsupr( wchar_t *string ); unsigned char *_mbsupr( unsigned char *string );
Parameter
- string
- String to capitalize.
Return Value
Returns a pointer to the altered string. Because the modification is done in place, the pointer returned is the same as the pointer passed as the input argument. No return value is reserved to indicate an error.
Remarks
The _strupr function converts, in place, each lowercase letter in string to uppercase. The conversion is determined by the LC_CTYPE category setting of the current locale. Other characters are not affected. For more information on LC_CTYPE, see setlocale.
_wcsupr and _mbsupr are wide-character and multibyte-character versions of _strupr. The argument and return value of _wcsupr are wide-character strings; those of _mbsupr are multibyte-character strings. These three functions behave identically otherwise.
Generic-Text Routine Mappings
| TCHAR.H routine | _UNICODE & _MBCS not defined | _MBCS defined | _UNICODE defined |
|---|---|---|---|
| _tcsupr | _strupr | _mbsupr | _wcsupr |
Requirements
| Routine | Required header | Compatibility |
|---|---|---|
| _strupr | <string.h> | Win 98, Win Me, Win NT, Win 2000, Win XP |
| _wcsupr | <string.h> or <wchar.h> | Win 98, Win Me, Win NT, Win 2000, Win XP |
| _mbsupr | <mbstring.h> | Win 98, Win Me, Win NT, Win 2000, Win XP |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
All versions of the C run-time libraries.
Example
See the example for _strlwr.
See Also
Locale Routines | String Manipulation Routines | _strlwr | Run-Time Routines and .NET Framework Equivalents
