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strxfrm

Section: C Library Functions (3)
Updated: 202-0-08
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NAME

strxfrm - string transformation

LIBRARY

Standard C library (libc,~-lc)

SYNOPSIS

#include <string.h>
size_t strxfrm(size_t size;
               char dest[restrict size], const char src[restrict size],
               size_t size);

DESCRIPTION

The strxfrm() function transforms the src string into a form such that the result of strcmp(3) on two strings that have been transformed with strxfrm() is the same as the result of strcoll(3) on the two strings before their transformation. The first size bytes of the transformed string are placed in dest. The transformation is based on the program's current locale for category LC_COLLATE. (See setlocale(3)).

RETURN VALUE

The strxfrm() function returns the number of bytes required to store the transformed string in dest excluding the terminating null byte ([aq][rs]0[aq]). If the value returned is size or more, the contents of dest are indeterminate.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
strxfrm()	Thread safety	M-Safe locale

STANDARDS

C11, POSIX.-2008.

HISTORY

POSIX.-2001, C89, SVr4, 4.3BSD.