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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="ZSTD_CCtx_refCDict() : Requires v1.4.0+ Reference a prepared dictionary, to be used for all future compressed frames. Note that compression parameters are enforced from within CDict, and supersede any compression parameter previously set within CCtx. The parameters ignored are labelled as “superseded-by-cdict” in the ZSTD_cParameter enum docs. The ignored parameters will be used again if the CCtx is returned to no-dictionary mode. The dictionary will remain valid for future compressed frames using same CCtx. @result : 0, or an error code (which can be tested with ZSTD_isError()). Special : Referencing a NULL CDict means “return to no-dictionary mode”. Note 1 : Currently, only one dictionary can be managed. Referencing a new dictionary effectively “discards” any previous one. Note 2 : CDict is just referenced, its lifetime must outlive its usage within CCtx."><title>ZSTD_CCtx_refCDict in zstd_sys - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="zstd_sys" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">ZSTD_CCtx_refCDict</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../zstd_sys/index.html">zstd_<wbr>sys</a><span class="version">2.0.16+zstd.1.5.7</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="index.html">zstd_sys</a></div><h1>Function <span class="fn">ZSTD_<wbr>CCtx_<wbr>refC<wbr>Dict</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../src/zstd_sys/bindings_zstd.rs.html#574-577">Source</a> </span></div><pre class="rust item-decl"><code>pub unsafe extern "C" fn ZSTD_CCtx_refCDict(
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cctx: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/core/primitive.pointer.html">*mut </a><a class="type" href="type.ZSTD_CCtx.html" title="type zstd_sys::ZSTD_CCtx">ZSTD_CCtx</a>,
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cdict: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/core/primitive.pointer.html">*const </a><a class="type" href="type.ZSTD_CDict.html" title="type zstd_sys::ZSTD_CDict">ZSTD_CDict</a>,
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) -> <a class="primitive" href="https://doc.rust-lang.org/1.93.1/core/primitive.usize.html">usize</a></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>ZSTD_CCtx_refCDict() : Requires v1.4.0+
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Reference a prepared dictionary, to be used for all future compressed frames.
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Note that compression parameters are enforced from within CDict,
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and supersede any compression parameter previously set within CCtx.
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The parameters ignored are labelled as “superseded-by-cdict” in the ZSTD_cParameter enum docs.
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The ignored parameters will be used again if the CCtx is returned to no-dictionary mode.
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The dictionary will remain valid for future compressed frames using same CCtx.
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@result : 0, or an error code (which can be tested with ZSTD_isError()).
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Special : Referencing a NULL CDict means “return to no-dictionary mode”.
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Note 1 : Currently, only one dictionary can be managed.
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Referencing a new dictionary effectively “discards” any previous one.
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Note 2 : CDict is just referenced, its lifetime must outlive its usage within CCtx.</p>
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</div></details></section></div></main></body></html> |