iconv的参数类型以及返回值

1、参数编码类型

                   European languages

ASCII, ISO−8859−{1,2,3,4,5,7,9,10,13,14,15,16}, KOI8−R, KOI8−U, KOI8−RU, CP{1250,1251,1252,1253,1254,1257}, CP{850,866,1131}, Mac{Roman,CentralEurope,Iceland,Croatian,Romania}, Mac{Cyrillic,Ukraine,Greek,Turkish}, Macintosh

Semitic languages

ISO−8859−{6,8}, CP{1255,1256}, CP862, Mac{Hebrew,Arabic}

Japanese

EUC−JP, SHIFT_JIS, CP932, ISO−2022−JP, ISO−2022−JP−2, ISO−2022−JP−1

Chinese

EUC−CN, HZ, GBK, CP936, GB18030, EUC−TW, BIG5, CP950, BIG5−HKSCS, BIG5−HKSCS:2001, BIG5−HKSCS:1999, ISO−2022−CN, ISO−2022−CN−EXT

Korean

EUC−KR, CP949, ISO−2022−KR, JOHAB

Armenian

ARMSCII−8

Georgian

Georgian−Academy, Georgian−PS

Tajik

KOI8−T

Kazakh

PT154, RK1048

Thai

TIS−620, CP874, MacThai

Laotian

MuleLao−1, CP1133

Vietnamese

VISCII, TCVN, CP1258

Platform specifics

HP−ROMAN8, NEXTSTEP

Full Unicode

UTF−8 UCS−2, UCS−2BE, UCS−2LE UCS−4, UCS−4BE, UCS−4LE UTF−16, UTF−16BE, UTF−16LE UTF−32, UTF−32BE, UTF−32LE UTF−7 C99, JAVA

Full Unicode, in terms of uint16_t or uint32_t

(with machine dependent endianness and alignment) UCS−2−INTERNAL, UCS−4−INTERNAL

Locale dependent, in terms of char or wchar_t

(with machine dependent endianness and alignment, and with semantics depending on the OS and the current LC_CTYPE locale facet) char, wchar_t

When configured with the option −−enable−extra−encodings, it also provides support for a few extra encodings:

European languages

CP{437,737,775,852,853,855,857,858,860,861,863,865,869,1125}

Semitic languages

CP864

Japanese

EUC−JISX0213, Shift_JISX0213, ISO−2022−JP−3

Chinese

BIG5−2003 (experimental)

Turkmen

TDS565

Platform specifics

ATARIST, RISCOS−LATIN1

 

注：当编码类型为空的时候默认为本地编码方式

 

2、返回值

如果成功，返回一个有效的转换描述符

如果失败返回-1；