projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright (c) Bruno Haible <haible@clisp.cons.org> |
| 2 | .\" | |
| 3 | .\" This is free documentation; you can redistribute it and/or | |
| 4 | .\" modify it under the terms of the GNU General Public License as | |
| 5 | .\" published by the Free Software Foundation; either version 2 of | |
| 6 | .\" the License, or (at your option) any later version. | |
| 7 | .\" | |
| 8 | .\" References consulted: | |
| 9 | .\" GNU glibc-2 source code and manual | |
| 10 | .\" Dinkumware C library reference http://www.dinkumware.com/ | |
| 11 | .\" OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html | |
| 12 | .\" ISO/IEC 9899:1999 | |
| 13 | .\" | |
| 14 | .TH TOWUPPER 3 1999-07-25 "GNU" "Linux Programmer's Manual" | |
| 15 | .SH NAME | |
| 16 | towupper \- convert a wide character to uppercase | |
| 17 | .SH SYNOPSIS | |
| 18 | .nf | |
| 19 | .B #include <wctype.h> | |
| 20 | .sp | |
| 21 | .BI "wint_t towupper(wint_t " wc ); | |
| 22 | .fi | |
| 23 | .SH DESCRIPTION | |
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24 | The |
| 25 | .BR towupper () | |
| 26 | function is the wide-character equivalent of the | |
| 27 | .BR toupper (3) | |
| 28 | function. | |
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29 | If \fIwc\fP is a wide character, it is converted to |
| 30 | uppercase. | |
| 31 | Characters which do not have case are returned unchanged. | |
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32 | If \fIwc\fP is WEOF, WEOF is returned. |
| 33 | .SH "RETURN VALUE" | |
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34 | The |
| 35 | .BR towupper () | |
| 36 | function returns the uppercase equivalent of \fIwc\fP, | |
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37 | or WEOF if \fIwc\fP is WEOF. |
| 38 | .SH "CONFORMING TO" | |
| 68e1685c | 39 | C99. |
| fea681da | 40 | .SH NOTES |
| d9bfdb9c | 41 | The behavior of |
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42 | .BR towupper () |
| 43 | depends on the LC_CTYPE category of the | |
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44 | current locale. |
| 45 | .PP | |
| 46 | This function is not very appropriate for dealing with Unicode characters, | |
| 47 | because Unicode knows about three cases: upper, lower and title case. | |
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48 | .SH "SEE ALSO" |
| 49 | .BR iswupper (3), | |
| 50 | .BR towctrans (3), | |
| 51 | .BR towlower (3) |