@node strxfrm, locale
@findex strxfrm
@subheading Syntax

@example
#include <string.h>

size_t strxfrm(char *s1, const char *s2, size_t max);
@end example

@subheading Description

This copies characters from @var{s2} to @var{s1}, which must be able to
hold @var{max} characters.  Each character is transformed according to
the locale such that @code{strcmp(s1b, s2b)} is just like
@code{strcoll(s1, s2)} where @code{s1b} and @code{s2b} are the
transforms of @code{s1} and @code{s2}. 

@subheading Return Value

The actual number of bytes required to transform @var{s2}, including the
@code{NULL}. 

@subheading Portability

@portability ansi, posix