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| author | Craig Jennings <c@cjennings.net> | 2025-08-14 22:58:58 -0500 |
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| committer | Craig Jennings <c@cjennings.net> | 2025-08-14 22:58:58 -0500 |
| commit | 82ba818ff456bcd6d56a06226e3f27e98fbb55c3 (patch) | |
| tree | 158cfc17b2f644a10f063cb546752cfaae12c97f /devdocs/c/string%2Fmultibyte%2Fbtowc.html | |
| parent | 9278ddd4ea1a8b1a4c1edaa8894516e3f48d245b (diff) | |
| download | dotemacs-82ba818ff456bcd6d56a06226e3f27e98fbb55c3.tar.gz dotemacs-82ba818ff456bcd6d56a06226e3f27e98fbb55c3.zip | |
removing all downloaded devdocs files
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| -rw-r--r-- | devdocs/c/string%2Fmultibyte%2Fbtowc.html | 57 |
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diff --git a/devdocs/c/string%2Fmultibyte%2Fbtowc.html b/devdocs/c/string%2Fmultibyte%2Fbtowc.html deleted file mode 100644 index a30db92f..00000000 --- a/devdocs/c/string%2Fmultibyte%2Fbtowc.html +++ /dev/null @@ -1,57 +0,0 @@ - <h1 id="firstHeading" class="firstHeading">btowc</h1> <table class="t-dcl-begin"> <tr class="t-dsc-header"> <th> Defined in header <code><wchar.h></code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl"> <td> <pre data-language="c">wint_t btowc( int c );</pre> -</td> <td class="t-dcl-nopad"> </td> <td> <span class="t-mark-rev t-since-c95">(since C95)</span> </td> </tr> </table> <p>Widens a single-byte character <code>c</code> (reinterpreted as <code>unsigned char</code>) to its wide character equivalent.</p> -<p>Most multibyte character encodings use single-byte codes to represent the characters from the ASCII character set. This function may be used to convert such characters to <code>wchar_t</code>.</p> -<h3 id="Parameters"> Parameters</h3> <table class="t-par-begin"> <tr class="t-par"> <td> c </td> <td> - </td> <td> single-byte character to widen </td> -</tr> -</table> <h3 id="Return_value"> Return value</h3> <p><code>WEOF</code> if <code>c</code> is <code><a href="../../io" title="c/io">EOF</a></code></p> -<p>wide character representation of <code>c</code> if <code>(unsigned char)c</code> is a valid single-byte character in the initial shift state, <code>WEOF</code> otherwise.</p> -<h3 id="Example"> Example</h3> <div class="t-example"> <div class="c source-c"><pre data-language="c">#include <stdio.h> -#include <wchar.h> -#include <locale.h> -#include <assert.h> - -void try_widen(unsigned char c) -{ - wint_t w = btowc(c); - if(w != WEOF) - printf("The single-byte character %#x widens to %#x\n", c, w); - else - printf("The single-byte character %#x failed to widen\n", c); -} - -int main(void) -{ - char *loc = setlocale(LC_ALL, "lt_LT.iso88594"); - assert(loc); - printf("In Lithuanian ISO-8859-4 locale:\n"); - try_widen('A'); - try_widen('\xdf'); // German letter ß (U+00df) in ISO-8859-4 - try_widen('\xf9'); // Lithuanian letter ų (U+0173) in ISO-8859-4 - - setlocale(LC_ALL, "lt_LT.utf8"); - printf("In Lithuanian UTF-8 locale:\n"); - try_widen('A'); - try_widen('\xdf'); - try_widen('\xf9'); -}</pre></div> <p>Possible output:</p> -<div class="text source-text"><pre data-language="c">In Lithuanian ISO-8859-4 locale: -The single-byte character 0x41 widens to 0x41 -The single-byte character 0xdf widens to 0xdf -The single-byte character 0xf9 widens to 0x173 -In Lithuanian UTF-8 locale: -The single-byte character 0x41 widens to 0x41 -The single-byte character 0xdf failed to widen -The single-byte character 0xf9 failed to widen</pre></div> </div> <h3 id="References"> References</h3> <ul> -<li> C11 standard (ISO/IEC 9899:2011): </li> -<ul><li> 7.29.6.1.1 The btowc function (p: 441) </li></ul> -<li> C99 standard (ISO/IEC 9899:1999): </li> -<ul><li> 7.24.6.1.1 The btowc function (p: 387) </li></ul> -</ul> <h3 id="See_also"> See also</h3> <table class="t-dsc-begin"> <tr class="t-dsc"> <td> <div><a href="wctob" title="c/string/multibyte/wctob"> <span class="t-lines"><span>wctob</span></span></a></div> -<div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div> </td> <td> narrows a wide character to a single-byte narrow character, if possible <br> <span class="t-mark">(function)</span> </td> -</tr> <tr class="t-dsc"> <td colspan="2"> <span><a href="https://en.cppreference.com/w/cpp/string/multibyte/btowc" title="cpp/string/multibyte/btowc">C++ documentation</a></span> for <code>btowc</code> </td> -</tr> </table> <div class="_attribution"> - <p class="_attribution-p"> - © cppreference.com<br>Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.<br> - <a href="https://en.cppreference.com/w/c/string/multibyte/btowc" class="_attribution-link">https://en.cppreference.com/w/c/string/multibyte/btowc</a> - </p> -</div> |
