projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright (c) Bruno Haible <haible@clisp.cons.org> |
| 2 | .\" | |
| 89e3ffe9 | 3 | .\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA) |
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4 | .\" This is free documentation; you can redistribute it and/or |
| 5 | .\" modify it under the terms of the GNU General Public License as | |
| 6 | .\" published by the Free Software Foundation; either version 2 of | |
| 7 | .\" the License, or (at your option) any later version. | |
| fe382ebf | 8 | .\" %%%LICENSE_END |
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9 | .\" |
| 10 | .\" References consulted: | |
| 11 | .\" GNU glibc-2 source code and manual | |
| 12 | .\" Dinkumware C library reference http://www.dinkumware.com/ | |
| 008f1ecc | 13 | .\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html |
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14 | .\" ISO/IEC 9899:1999 |
| 15 | .\" | |
| da8a154e | 16 | .TH WCTOB 3 2011-09-22 "GNU" "Linux Programmer's Manual" |
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17 | .SH NAME |
| 18 | wctob \- try to represent a wide character as a single byte | |
| 19 | .SH SYNOPSIS | |
| 20 | .nf | |
| 21 | .B #include <wchar.h> | |
| 22 | .sp | |
| 23 | .BI "int wctob(wint_t " c ); | |
| 24 | .fi | |
| 25 | .SH DESCRIPTION | |
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26 | The |
| 27 | .BR wctob () | |
| 28 | function tests whether | |
| ae03dc66 | 29 | the multibyte representation of the |
| fea681da | 30 | wide character \fIc\fP, starting in the initial state, consists of a single |
| c13182ef | 31 | byte. |
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32 | If so, it is returned as an |
| 33 | .IR "unsigned char" . | |
| fea681da | 34 | .PP |
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35 | Never use this function. |
| 36 | It cannot help you in writing internationalized | |
| 37 | programs. | |
| 38 | Internationalized programs must never distinguish single-byte and | |
| ae03dc66 | 39 | multibyte characters. |
| 47297adb | 40 | .SH RETURN VALUE |
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41 | The |
| 42 | .BR wctob () | |
| 43 | function returns the single-byte representation of \fIc\fP, | |
| f3fef736 | 44 | if it exists, of \fBEOF\fP otherwise. |
| 47297adb | 45 | .SH CONFORMING TO |
| 68e1685c | 46 | C99. |
| fea681da | 47 | .SH NOTES |
| d9bfdb9c | 48 | The behavior of |
| 60a90ecd | 49 | .BR wctob () |
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50 | depends on the |
| 51 | .B LC_CTYPE | |
| 52 | category of the | |
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53 | current locale. |
| 54 | .PP | |
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55 | This function should never be used. |
| 56 | Internationalized programs must never | |
| ae03dc66 | 57 | distinguish single-byte and multibyte characters. |
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58 | Use either |
| 59 | .BR wctomb (3) | |
| 60 | or the thread-safe | |
| 61 | .BR wcrtomb (3) | |
| 62 | instead. | |
| 47297adb | 63 | .SH SEE ALSO |
| 11cfb06e | 64 | .BR btowc (3), |
| da8a154e | 65 | .BR wcrtomb (3), |
| e37e3282 | 66 | .BR wctomb (3) |