| [1166] | 1 | <!-- Creator : groff version 1.22.3 -->
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| 9 | <style type="text/css">
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| 13 | h1 { text-align: center }
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| 14 | </style>
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| 15 | <title>ICONV_OPEN</title>
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| 16 |
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| 17 | </head>
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| 18 | <body>
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| 19 |
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| 20 | <h1 align="center">ICONV_OPEN</h1>
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| 21 |
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| 22 | <a href="#NAME">NAME</a><br>
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| 23 | <a href="#SYNOPSIS">SYNOPSIS</a><br>
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| 24 | <a href="#DESCRIPTION">DESCRIPTION</a><br>
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| 25 | <a href="#RETURN VALUE">RETURN VALUE</a><br>
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| 26 | <a href="#ERRORS">ERRORS</a><br>
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| 27 | <a href="#CONFORMING TO">CONFORMING TO</a><br>
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| 28 | <a href="#SEE ALSO">SEE ALSO</a><br>
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| 29 |
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| 30 | <hr>
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| 31 |
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| 32 |
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| 33 | <h2>NAME
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| 34 | <a name="NAME"></a>
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| 35 | </h2>
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| 36 |
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| 37 |
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| 38 | <p style="margin-left:11%; margin-top: 1em">iconv_open
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| 39 | − allocate descriptor for character set conversion</p>
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| 40 |
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| 41 | <h2>SYNOPSIS
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| 42 | <a name="SYNOPSIS"></a>
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| 43 | </h2>
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| 44 |
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| 45 |
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| 46 | <p style="margin-left:11%; margin-top: 1em"><b>#include
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| 47 | <iconv.h></b></p>
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| 48 |
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| 49 | <p style="margin-left:11%; margin-top: 1em"><b>iconv_t
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| 50 | iconv_open (const char*</b> <i>tocode</i><b>, const
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| 51 | char*</b> <i>fromcode</i><b>);</b></p>
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| 52 |
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| 53 | <h2>DESCRIPTION
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| 54 | <a name="DESCRIPTION"></a>
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| 55 | </h2>
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| 56 |
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| 57 |
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| 58 | <p style="margin-left:11%; margin-top: 1em">The
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| 59 | <b>iconv_open</b> function allocates a conversion descriptor
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| 60 | suitable for converting byte sequences from character
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| 61 | encoding <i>fromcode</i> to character encoding
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| 62 | <i>tocode</i>.</p>
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| 63 |
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| 64 | <p style="margin-left:11%; margin-top: 1em">The values
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| 65 | permitted for <i>fromcode</i> and <i>tocode</i> and the
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| 66 | supported combinations are system dependent. For the
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| 67 | libiconv library, the following encodings are supported, in
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| 68 | all combinations. <br>
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| 69 | European languages</p>
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| 70 |
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| 71 | <p style="margin-left:22%;">ASCII,
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| 72 | ISO−8859−{1,2,3,4,5,7,9,10,13,14,15,16},
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| 73 | KOI8−R, KOI8−U, KOI8−RU,
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| 74 | CP{1250,1251,1252,1253,1254,1257}, CP{850,866,1131},
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| 75 | Mac{Roman,CentralEurope,Iceland,Croatian,Romania},
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| 76 | Mac{Cyrillic,Ukraine,Greek,Turkish}, Macintosh</p>
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| 77 |
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| 78 | <p style="margin-left:11%;">Semitic languages</p>
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| 79 |
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| 80 | <p style="margin-left:22%;">ISO−8859−{6,8},
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| 81 | CP{1255,1256}, CP862, Mac{Hebrew,Arabic}</p>
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| 82 |
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| 83 | <p style="margin-left:11%;">Japanese</p>
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| 84 |
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| 85 | <p style="margin-left:22%;">EUC−JP, SHIFT_JIS, CP932,
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| 86 | ISO−2022−JP, ISO−2022−JP−2,
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| 87 | ISO−2022−JP−1,
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| 88 | ISO-2022−JP−MS</p>
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| 89 |
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| 90 | <p style="margin-left:11%;">Chinese</p>
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| 91 |
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| 92 | <p style="margin-left:22%;">EUC−CN, HZ, GBK, CP936,
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| 93 | GB18030, EUC−TW, BIG5, CP950, BIG5−HKSCS,
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| 94 | BIG5−HKSCS:2004, BIG5−HKSCS:2001,
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| 95 | BIG5−HKSCS:1999, ISO−2022−CN,
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| 96 | ISO−2022−CN−EXT</p>
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| 97 |
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| 98 | <table width="100%" border="0" rules="none" frame="void"
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| 99 | cellspacing="0" cellpadding="0">
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| 100 | <tr valign="top" align="left">
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| 101 | <td width="11%"></td>
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| 102 | <td width="9%">
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| 103 |
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| 104 |
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| 105 | <p>Korean</p></td>
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| 106 | <td width="2%"></td>
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| 107 | <td width="50%">
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| 108 |
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| 109 |
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| 110 | <p>EUC−KR, CP949, ISO−2022−KR, JOHAB</p></td>
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| 111 | <td width="28%">
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| 112 | </td></tr>
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| 113 | </table>
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| 114 |
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| 115 | <p style="margin-left:11%;">Armenian</p>
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| 116 |
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| 117 | <p style="margin-left:22%;">ARMSCII−8</p>
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| 118 |
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| 119 | <p style="margin-left:11%;">Georgian</p>
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| 120 |
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| 121 | <p style="margin-left:22%;">Georgian−Academy,
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| 122 | Georgian−PS</p>
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| 123 |
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| 124 | <table width="100%" border="0" rules="none" frame="void"
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| 125 | cellspacing="0" cellpadding="0">
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| 126 | <tr valign="top" align="left">
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| 127 | <td width="11%"></td>
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| 128 | <td width="9%">
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| 129 |
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| 130 |
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| 131 | <p>Tajik</p></td>
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| 132 | <td width="2%"></td>
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| 133 | <td width="35%">
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| 134 |
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| 135 |
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| 136 | <p>KOI8−T</p></td>
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| 137 | <td width="43%">
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| 138 | </td></tr>
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| 139 | <tr valign="top" align="left">
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| 140 | <td width="11%"></td>
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| 141 | <td width="9%">
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| 142 |
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| 143 |
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| 144 | <p>Kazakh</p></td>
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| 145 | <td width="2%"></td>
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| 146 | <td width="35%">
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| 147 |
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| 148 |
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| 149 | <p>PT154, RK1048</p></td>
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| 150 | <td width="43%">
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| 151 | </td></tr>
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| 152 | <tr valign="top" align="left">
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| 153 | <td width="11%"></td>
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| 154 | <td width="9%">
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| 155 |
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| 156 |
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| 157 | <p>Thai</p></td>
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| 158 | <td width="2%"></td>
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| 159 | <td width="35%">
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| 160 |
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| 161 |
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| 162 | <p>TIS−620, CP874, MacThai</p></td>
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| 163 | <td width="43%">
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| 164 | </td></tr>
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| 165 | </table>
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| 166 |
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| 167 | <p style="margin-left:11%;">Laotian</p>
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| 168 |
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| 169 | <p style="margin-left:22%;">MuleLao−1, CP1133</p>
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| 170 |
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| 171 | <p style="margin-left:11%;">Vietnamese</p>
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| 172 |
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| 173 | <p style="margin-left:22%;">VISCII, TCVN, CP1258</p>
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| 174 |
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| 175 | <p style="margin-left:11%;">Platform specifics</p>
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| 176 |
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| 177 | <p style="margin-left:22%;">HP−ROMAN8, NEXTSTEP</p>
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| 178 |
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| 179 | <p style="margin-left:11%;">Full Unicode</p>
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| 180 |
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| 181 | <p style="margin-left:22%;">UTF−8 <br>
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| 182 | UCS−2, UCS−2BE, UCS−2LE <br>
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| 183 | UCS−4, UCS−4BE, UCS−4LE <br>
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| 184 | UTF−16, UTF−16BE, UTF−16LE <br>
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| 185 | UTF−32, UTF−32BE, UTF−32LE <br>
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| 186 | UTF−7 <br>
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| 187 | C99, JAVA</p>
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| 188 |
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| 189 | <p style="margin-left:11%;">Full Unicode, in terms of
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| 190 | <b>uint16_t</b> or <b>uint32_t</b></p>
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| 191 |
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| 192 | <p style="margin-left:22%;">(with machine dependent
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| 193 | endianness and alignment) <br>
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| 194 | UCS−2−INTERNAL, UCS−4−INTERNAL</p>
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| 195 |
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| 196 | <p style="margin-left:11%;">Locale dependent, in terms of
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| 197 | <b>char</b> or <b>wchar_t</b></p>
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| 198 |
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| 199 | <p style="margin-left:22%;">(with machine dependent
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| 200 | endianness and alignment, and with semantics depending on
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| 201 | the OS and the current LC_CTYPE locale facet) <br>
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| 202 | char, wchar_t</p>
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| 203 |
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| 204 | <p style="margin-left:11%; margin-top: 1em">When configured
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| 205 | with the option
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| 206 | <b>−−enable−extra−encodings</b>, it
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| 207 | also provides support for a few extra encodings: <br>
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| 208 | European languages</p>
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| 209 |
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| 210 |
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| 211 | <p style="margin-left:22%;">CP{437,737,775,852,853,855,857,858,860,861,863,865,869,1125}</p>
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| 212 |
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| 213 | <p style="margin-left:11%;">Semitic languages</p>
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| 214 |
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| 215 | <p style="margin-left:22%;">CP864</p>
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| 216 |
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| 217 | <p style="margin-left:11%;">Japanese</p>
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| 218 |
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| 219 | <p style="margin-left:22%;">EUC−JISX0213,
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| 220 | Shift_JISX0213, ISO−2022−JP−3</p>
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| 221 |
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| 222 | <p style="margin-left:11%;">Chinese</p>
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| 223 |
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| 224 | <p style="margin-left:22%;">BIG5−2003
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| 225 | (experimental)</p>
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| 226 |
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| 227 | <p style="margin-left:11%;">Turkmen</p>
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| 228 |
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| 229 | <p style="margin-left:22%;">TDS565</p>
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| 230 |
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| 231 | <p style="margin-left:11%;">Platform specifics</p>
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| 232 |
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| 233 | <p style="margin-left:22%;">ATARIST,
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| 234 | RISCOS−LATIN1</p>
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| 235 |
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| 236 | <p style="margin-left:11%; margin-top: 1em">The empty
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| 237 | encoding name "" is equivalent to
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| 238 | "char": it denotes the locale dependent character
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| 239 | encoding.</p>
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| 240 |
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| 241 | <p style="margin-left:11%; margin-top: 1em">When the string
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| 242 | "//TRANSLIT" is appended to <i>tocode</i>,
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| 243 | transliteration is activated. This means that when a
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| 244 | character cannot be represented in the target character set,
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| 245 | it can be approximated through one or several characters
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| 246 | that look similar to the original character.</p>
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| 247 |
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| 248 | <p style="margin-left:11%; margin-top: 1em">When the string
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| 249 | "//IGNORE" is appended to <i>tocode</i>,
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| 250 | characters that cannot be represented in the target
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| 251 | character set will be silently discarded.</p>
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| 252 |
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| 253 | <p style="margin-left:11%; margin-top: 1em">The resulting
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| 254 | conversion descriptor can be used with <b>iconv</b> any
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| 255 | number of times. It remains valid until deallocated using
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| 256 | <b>iconv_close</b>.</p>
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| 257 |
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| 258 | <p style="margin-left:11%; margin-top: 1em">A conversion
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| 259 | descriptor contains a conversion state. After creation using
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| 260 | <b>iconv_open</b>, the state is in the initial state. Using
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| 261 | <b>iconv</b> modifies the descriptor’s conversion
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| 262 | state. (This implies that a conversion descriptor can not be
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| 263 | used in multiple threads simultaneously.) To bring the state
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| 264 | back to the initial state, use <b>iconv</b> with NULL as
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| 265 | <i>inbuf</i> argument.</p>
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| 266 |
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| 267 | <h2>RETURN VALUE
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| 268 | <a name="RETURN VALUE"></a>
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| 269 | </h2>
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| 270 |
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| 271 |
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| 272 | <p style="margin-left:11%; margin-top: 1em">The
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| 273 | <b>iconv_open</b> function returns a freshly allocated
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| 274 | conversion descriptor. In case of error, it sets
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| 275 | <b>errno</b> and returns (iconv_t)(−1).</p>
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| 276 |
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| 277 | <h2>ERRORS
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| 278 | <a name="ERRORS"></a>
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| 279 | </h2>
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| 280 |
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| 281 |
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| 282 | <p style="margin-left:11%; margin-top: 1em">The following
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| 283 | error can occur, among others:</p>
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| 284 |
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| 285 | <table width="100%" border="0" rules="none" frame="void"
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| 286 | cellspacing="0" cellpadding="0">
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| 287 | <tr valign="top" align="left">
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| 288 | <td width="11%"></td>
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| 289 | <td width="9%">
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| 290 |
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| 291 |
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| 292 | <p><b>EINVAL</b></p></td>
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| 293 | <td width="2%"></td>
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| 294 | <td width="78%">
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| 295 |
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| 296 |
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| 297 | <p>The conversion from <i>fromcode</i> to <i>tocode</i> is
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| 298 | not supported by the implementation.</p></td></tr>
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| 299 | </table>
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| 300 |
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| 301 | <h2>CONFORMING TO
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| 302 | <a name="CONFORMING TO"></a>
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| 303 | </h2>
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| 304 |
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| 305 |
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| 306 | <p style="margin-left:11%; margin-top: 1em">POSIX:2001</p>
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| 307 |
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| 308 | <h2>SEE ALSO
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| 309 | <a name="SEE ALSO"></a>
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| 310 | </h2>
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| 311 |
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| 312 |
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| 313 |
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| 314 | <p style="margin-left:11%; margin-top: 1em"><b>iconv</b>(3)
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| 315 | <b>iconvctl</b>(3) <b>iconv_close</b>(3)</p>
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| 316 | <hr>
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| 317 | </body>
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| 318 | </html>
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