strupr.c

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/*
 * The C RunTime DLL
 *
 * Implements C run-time functionality as known from UNIX.
 *
 * Copyright 1996,1998 Marcus Meissner
 * Copyright 1996 Jukka Iivonen
 * Copyright 1997 Uwe Bonnes
 */
 
#include <precomp.h>
 
/*
 * @implemented
 */
char * CDECL _strupr(char *x)
{
    char  *y=x;
    char ch, upper;
 
    while (*y) {
        ch = *y;
        upper = toupper(ch);
        if (ch != upper)
            *y = upper;
        y++;
    }
    return x;
}