strxfrm(3C) strxfrm(3C)
NAME
strxfrm - string transformation
SYNOPSIS
#include <string.h>
size_t strxfrm (char *s1, const char *s2, size_t n);
DESCRIPTION
strxfrm transforms the string s2 and places the resulting
string into the array s1. The transformation is such that if
strcmp is applied to two transformed strings, it returns a
value greater than, equal to, or less than zero, corresponding
to the result of the strcoll function applied to the same two
original strings. The transformation is based on the
program's locale for category LC_COLLATE [see setlocale(3C)].
No more than n characters will be placed into the resulting
array pointed to by s1, including the terminating null
character. If n is 0, then s1 is permitted to be a null
pointer. If copying takes place between objects that overlap,
the behavior is undefined.
strxfrm returns the length of the transformed string (not
including the terminating null character). If the value
returned is n or more, the contents of the array s1 are
indeterminate.
Files
/usr/lib/locale/locale/LC_COLLATE
LC_COLLATE database for locale.
Errors
On failure, strxfrm returns (size_t) -1.
USAGE
The value of the following expression is the size of the array
needed to hold the transformation of the string pointed to by
s.
1 + strxfrm(NULL, s, 0);
REFERENCES
colltbl(1M), environ(5), setlocale(3C), strcoll(3C),
string(3C)
Copyright 1994 Novell, Inc. Page 1