📄 fflush.html
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head> <meta name="generator" content= "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org"> <title>fflush</title> <link href="../cppreference.css" rel="stylesheet" type="text/css"></head><body><table> <tr> <td> <div class="body-content"> <div class="header-box"> <a href="../index.html">cppreference.com</a> > <a href= "index.html">Standard C I/O</a> > <a href= "fflush.html">fflush</a> </div> <div class="name-format"> fflush </div> <div class="syntax-name-format"> Syntax: </div> <pre class="syntax-box"> #include <stdio.h> int fflush( FILE *stream );</pre> <p>If the given file <em>stream</em> is an output stream, then fflush() causes the output buffer to be written to the file. If the given <em>stream</em> is of the input type, then fflush() causes the input buffer to be cleared. fflush() is useful when debugging, if a program segfaults before it has a chance to write output to the screen. Calling fflush( <strong>stdout</strong> ) directly after debugging output will ensure that your output is displayed at the correct time.</p> <pre class="example-code"> printf( "Before first call\n" ); fflush( <strong>stdout</strong> ); shady_function(); printf( "Before second call\n" ); fflush( <strong>stdout</strong> ); dangerous_dereference(); </pre> <div class="related-name-format"> Related topics: </div> <div class="related-content"> <a href="fclose.html">fclose</a><br> <a href="fopen.html">fopen</a><br> <a href="fread.html">fread</a><br> <a href="fwrite.html">fwrite</a><br> <a href="getc.html">getc</a><br> <a href="putc.html">putc</a> </div> </div> </td> </tr> </table></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -