_strupr, _wcsupr (Windows CE 5.0)

Artikel
09/14/2012

Developing an Application > Microsoft C Run-time Library for Windows CE > Run-time Library Reference

Convert a string to uppercase.

char *_strupr( char *string );wchar_t *_wcsupr( wchar_t *string);

Parameters

string
String to capitalize.

Return Values

These functions return 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

These functions are supported by all versions of the C run-time libraries.

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.

_wcsupr is a wide-character version of _strupr. The argument and return value of _wcsupr are wide-character strings. These two functions behave identically otherwise.

The following table shows generic-text routine mappings for this function.

TCHAR.H Routine	_UNICODE Defined
_tcsupr	_wcsupr

For more information about TCHAR.H routines, see Generic Text Mappings.

Example

Description

This program uses _strlwr and _strupr to create uppercase and lowercase copies of a mixed-case string.

Code

#include <string.h>
#include <stdio.h>

void main( void )
{
   char string[100] = "The String to End All Strings!";
   char *copy1, *copy2;
   copy1 = _strlwr( _strdup( string ) );
   copy2 = _strupr( _strdup( string ) );
   printf( "Mixed: %s\n", string );
   printf( "Lower: %s\n", copy1 );
   printf( "Upper: %s\n", copy2 );
}
// Output
Mixed: The String to End All Strings!
Lower: the string to end all strings!
Upper: THE STRING TO END ALL STRINGS!

Requirements

OS Versions: Windows CE 2.0 and later.

Header: stdio.h, string.h.

Link Library: coredll.dll.

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