mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-16 03:19:54 +08:00
5921804481
* libc/string/strcasecmp.c: Optimized rewrite.
* libc/string/strncasecmp.c: Fix description.
* libc/string/strlwr.c: Avoid passing signed char to tolower.
* libc/string/strupr.c: Avoid passing signed char to tolower.
47 lines
670 B
C
47 lines
670 B
C
/*
|
|
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;
|
|
}
|