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/*
FUNCTION
<<strupr>>---force string to uppercase
INDEX
strupr
ANSI_SYNOPSIS
#include <string.h>
char *strupr(char *<[a]>);
TRAD_SYNOPSIS
#include <string.h>
char *strupr(<[a]>)
char *<[a]>;
DESCRIPTION
<<strupr>> converts each character in the string at <[a]> to
uppercase.
RETURNS
<<strupr>> returns its argument, <[a]>.
PORTABILITY
<<strupr>> is not widely portable.
<<strupr>> requires no supporting OS subroutines.
QUICKREF
strupr */
#include <string.h>
#include <ctype.h>
char *
strupr (a)
char *a;
{
char *ret = a;
while (*a != '\0')
{
if (islower (*a))
*a = toupper (*a);
++a;
}
return ret;
}
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