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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/io%2Fungetwc.html | |
| parent | 9278ddd4ea1a8b1a4c1edaa8894516e3f48d245b (diff) | |
| download | dotemacs-82ba818ff456bcd6d56a06226e3f27e98fbb55c3.tar.gz dotemacs-82ba818ff456bcd6d56a06226e3f27e98fbb55c3.zip | |
removing all downloaded devdocs files
Diffstat (limited to 'devdocs/c/io%2Fungetwc.html')
| -rw-r--r-- | devdocs/c/io%2Fungetwc.html | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/devdocs/c/io%2Fungetwc.html b/devdocs/c/io%2Fungetwc.html deleted file mode 100644 index 88d39fd7..00000000 --- a/devdocs/c/io%2Fungetwc.html +++ /dev/null @@ -1,27 +0,0 @@ - <h1 id="firstHeading" class="firstHeading">ungetwc</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 ungetwc( wint_t ch, FILE *stream );</pre> -</td> <td class="t-dcl-nopad"> </td> <td> <span class="t-mark-rev t-since-c95">(since C95)</span> </td> </tr> </table> <p>If <code>ch</code> does not equal <code>WEOF</code>, pushes the wide character <code>ch</code> into the input buffer associated with the stream <code>stream</code> in such a manner that subsequent read operation from <code>stream</code> will retrieve that wide character. The external device associated with the stream is not modified.</p> -<p>Stream repositioning operations <code><a href="fseek" title="c/io/fseek">fseek</a></code>, <code><a href="fsetpos" title="c/io/fsetpos">fsetpos</a></code>, and <code><a href="rewind" title="c/io/rewind">rewind</a></code> discard the effects of <code>ungetwc</code>.</p> -<p>If <code>ungetwc</code> is called more than once without an intervening read or repositioning, it may fail (in other words, a pushback buffer of size 1 is guaranteed, but any larger buffer is implementation-defined). If multiple successful <code>ungetwc</code> were performed, read operations retrieve the pushed-back wide characters in reverse order of <code>ungetwc</code></p> -<p>If <code>ch</code> equals <code>WEOF</code>, the operation fails and the stream is not affected.</p> -<p>A successful call to <code>ungetwc</code> clears the end of file status flag <code><a href="feof" title="c/io/feof">feof</a></code>.</p> -<p>A successful call to <code>ungetwc</code> on a stream (whether text or binary) modifies the stream position indicator in unspecified manner but guarantees that after all pushed-back wide characters are retrieved with a read operation, the stream position indicator is equal to its value before <code>ungetwc</code>.</p> -<h3 id="Parameters"> Parameters</h3> <table class="t-par-begin"> <tr class="t-par"> <td> ch </td> <td> - </td> <td> wide character to be put back </td> -</tr> <tr class="t-par"> <td> stream </td> <td> - </td> <td> file stream to put the wide character back to </td> -</tr> -</table> <h3 id="Return_value"> Return value</h3> <p>On success <code>ch</code> is returned.</p> -<p>On failure <code>WEOF</code> is returned and the given stream remains unchanged.</p> -<h3 id="References"> References</h3> <ul> -<li> C11 standard (ISO/IEC 9899:2011): </li> -<ul><li> 7.29.3.10 The ungetwc function (p: 425-426) </li></ul> -<li> C99 standard (ISO/IEC 9899:1999): </li> -<ul><li> 7.24.3.10 The ungetwc function (p: 370-371) </li></ul> -</ul> <h3 id="See_also"> See also</h3> <table class="t-dsc-begin"> <tr class="t-dsc"> <td> <div><a href="ungetc" title="c/io/ungetc"> <span class="t-lines"><span>ungetc</span></span></a></div> </td> <td> puts a character back into a file stream <br> <span class="t-mark">(function)</span> </td> -</tr> <tr class="t-dsc"> <td> <div><a href="fgetwc" title="c/io/fgetwc"> <span class="t-lines"><span>fgetwc</span><span>getwc</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> gets a wide character from a file stream <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/io/c/ungetwc" title="cpp/io/c/ungetwc">C++ documentation</a></span> for <code>ungetwc</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/io/ungetwc" class="_attribution-link">https://en.cppreference.com/w/c/io/ungetwc</a> - </p> -</div> |
