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/*
FUNCTION
	<<strlwr>>---force string to lowercase
 
INDEX
	strlwr
 
ANSI_SYNOPSIS
	#include <string.h>
	char *strlwr(char *<[a]>);
 
TRAD_SYNOPSIS
	#include <string.h>
	char *strlwr(<[a]>)
	char *<[a]>;
 
DESCRIPTION
	<<strlwr>> converts each character in the string at <[a]> to
	lowercase.
 
RETURNS
	<<strlwr>> returns its argument, <[a]>.
 
PORTABILITY
<<strlwr>> is not widely portable.
 
<<strlwr>> requires no supporting OS subroutines.
 
QUICKREF
	strlwr
*/
 
#include <string.h>
#include <ctype.h>
 
char *
_DEFUN (strlwr, (s),
	char *s)
{
  unsigned char *ucs = (unsigned char *) s;
  for ( ; *ucs != '\0'; ucs++)
    {
      *ucs = tolower(*ucs);
    }
  return s;
}