iconv_open

<html> <head> <title>iconv_open</title> <META NAME="KEYWORDS" CONTENT="iconv_open"> </head> <body BGCOLOR="#ffffff" LINK="#0000ff" VLINK="#0000ff" ALINK="#0000ff" TEXT="#000000"> <center> <h1>iconv_open</h1></center> <PRE> <A HREF="/man3/ICONV_OPEN">ICONV_OPEN(3)</A> Linux Programmer's Manual <A HREF="/man3/ICONV_OPEN">ICONV_OPEN(3)</A> NAME iconv_open - allocate descriptor for character set conversion SYNOPSIS #include <iconv.h> iconv_t iconv_open(const char *tocode, const char *fromcode); DESCRIPTION The iconv_open() function allocates a conversion descriptor suitable for converting byte sequences from character encoding fromcode to char- acter encoding tocode. The values permitted for fromcode and tocode and the supported combina- tions are system-dependent. For the GNU C library, the permitted val- ues are listed by the iconv --list command, and all combinations of the listed values are supported. Furthermore the GNU C library and the GNU libiconv library support the following two suffixes: //TRANSLIT When the string "//TRANSLIT" is appended to tocode, translitera- tion is activated. This means that when a character cannot be represented in the target character set, it can be approximated through one or several similarly looking characters. //IGNORE When the string "//IGNORE" is appended to tocode, characters that cannot be represented in the target character set will be silently discarded. The resulting conversion descriptor can be used with <A HREF="/man3/iconv">iconv(3)</A> any num- ber of times. It remains valid until deallocated using <A HREF="/man3/iconv_close">iconv_close(3)</A>. A conversion descriptor contains a conversion state. After creation using iconv_open(), the state is in the initial state. Using <A HREF="/man3/iconv">iconv(3)</A> modifies the descriptor's conversion state. To bring the state back to the initial state, use <A HREF="/man3/iconv">iconv(3)</A> with NULL as inbuf argument. RETURN VALUE The iconv_open() function returns a freshly allocated conversion de- scriptor. In case of error, it sets errno and returns (iconv_t) -1. ERRORS The following error can occur, among others: EINVAL The conversion from fromcode to tocode is not supported by the implementation. VERSIONS This function is available in glibc since version 2.1. ATTRIBUTES For an explanation of the terms used in this section, see at- <A HREF="/man7/tributes">tributes(7)</A>. +-------------+---------------+----------------+ |Interface | Attribute | Value | +-------------+---------------+----------------+ |iconv_open() | Thread safety | MT-Safe locale | +-------------+---------------+----------------+ CONFORMING TO POSIX.1-2001, POSIX.1-2008, SUSv2. SEE ALSO <A HREF="/man1/iconv">iconv(1)</A>, <A HREF="/man3/iconv">iconv(3)</A>, <A HREF="/man3/iconv_close">iconv_close(3)</A> COLOPHON This page is part of release 5.05 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU 2017-09-15 <A HREF="/man3/ICONV_OPEN">ICONV_OPEN(3)</A></PRE> <center> <h6>Man Pages Copyright Respective Owners. Site Copyright (C) 1994 - 2025 <a href="http://www.he.net">Hurricane Electric</a>. All Rights Reserved.</h6></center> </body> </html>

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