strupr, _mbsupr, _wcsupr

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Header File

string.h, mbstring.h

Category

Conversion Routines, Memory and String Manipulation Routines

Prototype

char *strupr(char *s);

wchar_t *_wcsupr(wchar_t *s);

unsigned char *_mbsupr(unsigned char *s);

Description

Converts lowercase letters in a string to uppercase.

strupr converts lowercase letters in string s to uppercase according to the current locale's LC_CTYPE category. For the default C locale, the conversion is from lowercase letters (a to z) to uppercase letters (A to Z). No other characters are changed.

Return Value

strupr returns s.

Example

#include <stdio.h>
#include <string.h>
int main(void)
{
   char *string = "abcdefghijklmnopqrstuvwxyz", *ptr;
   /* converts string to upper case characters */
   ptr = strupr(string);
   printf("%s\n", ptr);
   return 0;
}

Portability

	POSIX	Win32	ANSI C	ANSI C++
strupr		+
_mbsupr		+
_wcsupr		+