145 lines
4.3 KiB
HTML
145 lines
4.3 KiB
HTML
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<!DOCTYPE html>
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<html><head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<link href="sqlite.css" rel="stylesheet">
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<title>SQLite is a Self Contained System</title>
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<!-- path= -->
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</head>
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<body>
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<div class=nosearch>
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<a href="index.html">
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<img class="logo" src="images/sqlite370_banner.gif" alt="SQLite" border="0">
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</a>
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<div><!-- IE hack to prevent disappearing logo --></div>
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<div class="tagline desktoponly">
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Small. Fast. Reliable.<br>Choose any three.
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</div>
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<div class="menu mainmenu">
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<ul>
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<li><a href="index.html">Home</a>
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<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a>
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<li class='wideonly'><a href='about.html'>About</a>
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<li class='desktoponly'><a href="docs.html">Documentation</a>
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<li class='desktoponly'><a href="download.html">Download</a>
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<li class='wideonly'><a href='copyright.html'>License</a>
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<li class='desktoponly'><a href="support.html">Support</a>
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<li class='desktoponly'><a href="prosupport.html">Purchase</a>
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<li class='search' id='search_menubutton'>
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<a href="javascript:void(0)" onclick='toggle_search()'>Search</a>
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</ul>
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</div>
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<div class="menu submenu" id="submenu">
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<ul>
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<li><a href='about.html'>About</a>
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<li><a href='docs.html'>Documentation</a>
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<li><a href='download.html'>Download</a>
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<li><a href='support.html'>Support</a>
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<li><a href='prosupport.html'>Purchase</a>
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</ul>
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</div>
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<div class="searchmenu" id="searchmenu">
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<form method="GET" action="search">
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<select name="s" id="searchtype">
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<option value="d">Search Documentation</option>
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<option value="c">Search Changelog</option>
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</select>
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<input type="text" name="q" id="searchbox" value="">
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<input type="submit" value="Go">
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</form>
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</div>
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</div>
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<script>
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function toggle_div(nm) {
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var w = document.getElementById(nm);
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if( w.style.display=="block" ){
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w.style.display = "none";
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}else{
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w.style.display = "block";
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}
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}
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function toggle_search() {
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var w = document.getElementById("searchmenu");
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if( w.style.display=="block" ){
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w.style.display = "none";
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} else {
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w.style.display = "block";
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setTimeout(function(){
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document.getElementById("searchbox").focus()
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}, 30);
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}
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}
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function div_off(nm){document.getElementById(nm).style.display="none";}
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window.onbeforeunload = function(e){div_off("submenu");}
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/* Disable the Search feature if we are not operating from CGI, since */
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/* Search is accomplished using CGI and will not work without it. */
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if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){
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document.getElementById("search_menubutton").style.display = "none";
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}
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/* Used by the Hide/Show button beside syntax diagrams, to toggle the */
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function hideorshow(btn,obj){
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var x = document.getElementById(obj);
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var b = document.getElementById(btn);
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if( x.style.display!='none' ){
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x.style.display = 'none';
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b.innerHTML='show';
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}else{
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x.style.display = '';
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b.innerHTML='hide';
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}
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return false;
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}
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</script>
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</div>
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<div class=fancy>
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<div class=nosearch>
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<div class="fancy_title">
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SQLite is a Self Contained System
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</div>
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</div>
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<p>
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SQLite is "stand-alone" or "self-contained" in the sense that it
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has very few dependencies. It runs on any operating system, even
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stripped-down bare-bones embedded operating systems. SQLite uses
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no external libraries or interfaces (other than a few standard C-library
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calls described below). The entire SQLite library is
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encapsulated in a <a href="amalgamation.html">single source code file</a> that requires
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no special facilities or tools to build.
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</p><p>
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A minimal build of SQLite requires just these routines from the
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standard C library:
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</p><ul>
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<li>memcmp()
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</li><li>memcpy()
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</li><li>memmove()
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</li><li>memset()
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</li><li>strcmp()
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</li><li>strlen()
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</li><li>strncmp()
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</li></ul>
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<p>
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Most builds also use the system memory allocation routines:
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</p><ul>
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<li>malloc()
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</li><li>realloc()
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</li><li>free()
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</li></ul>
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<p>But those routines are optional can can be omitted
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using a <a href="compile.html#zero_malloc">compile-time option</a>.
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</p><p>
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Default builds of SQLite contain appropriate <a href="vfs.html">VFS objects</a> for talking
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to underlying operating system, and those VFS objects will contain
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operating system calls such as open(), read(), write(), fsync(), and
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so forth. All of these interfaces are readily available on most platforms,
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and custom VFSes can be designed to run SQLite on even the most
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austere embedded devices.
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</p>
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