📄 memcpy.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>memcpy</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_000_007_601"> </a>NAME</h4><blockquote>memcpy - copy bytes in memory</blockquote><h4><a name = "tag_000_007_602"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="string.h.html">string.h</a>>void *memcpy(void *<i>s1</i>, const void *<i>s2</i>, size_t <i>n</i>);</code></pre></blockquote><h4><a name = "tag_000_007_603"> </a>DESCRIPTION</h4><blockquote>The<i>memcpy()</i>function copies<i>n</i>bytes from the object pointed to by<i>s2</i>into the object pointed to by<i>s1</i>.If copying takes place between objects that overlap, thebehaviour is undefined.</blockquote><h4><a name = "tag_000_007_604"> </a>RETURN VALUE</h4><blockquote>The<i>memcpy()</i>function returns<i>s1</i>;no return value is reserved to indicate an error.</blockquote><h4><a name = "tag_000_007_605"> </a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_000_007_606"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_007_607"> </a>APPLICATION USAGE</h4><blockquote>The<i>memcpy()</i>function does not check for the overflowing of the receiving memoryarea.</blockquote><h4><a name = "tag_000_007_608"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_007_609"> </a>SEE ALSO</h4><blockquote><i><a href="string.h.html"><string.h></a></i>.</blockquote><h4>DERIVATION</h4><blockquote>Derived from Issue 1 of the SVID.</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></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 + -