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<title>Data/Vector/Storable/Internal.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>-- |</span>
<a name="line-2"></a><span class='hs-comment'>-- Module : Data.Vector.Storable.Internal</span>
<a name="line-3"></a><span class='hs-comment'>-- Copyright : (c) Roman Leshchinskiy 2009-2010</span>
<a name="line-4"></a><span class='hs-comment'>-- License : BSD-style</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Roman Leshchinskiy <rl@cse.unsw.edu.au></span>
<a name="line-7"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-8"></a><span class='hs-comment'>-- Portability : non-portable</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Ugly internal utility functions for implementing 'Storable'-based vectors.</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a>
<a name="line-13"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Vector</span><span class='hs-varop'>.</span><span class='hs-conid'>Storable</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-layout'>(</span>
<a name="line-14"></a> <span class='hs-varid'>getPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>setPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>updPtr</span>
<a name="line-15"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-16"></a>
<a name="line-17"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>ForeignPtr</span>
<a name="line-18"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Ptr</span>
<a name="line-19"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ForeignPtr</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Ptr</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-21"></a>
<a name="line-22"></a><a name="getPtr"></a><span class='hs-definition'>getPtr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>a</span>
<a name="line-23"></a><span class='hs-comment'>{-# INLINE getPtr #-}</span>
<a name="line-24"></a><span class='hs-definition'>getPtr</span> <span class='hs-layout'>(</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>addr</span>
<a name="line-25"></a>
<a name="line-26"></a><a name="setPtr"></a><span class='hs-definition'>setPtr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>a</span>
<a name="line-27"></a><span class='hs-comment'>{-# INLINE setPtr #-}</span>
<a name="line-28"></a><span class='hs-definition'>setPtr</span> <span class='hs-layout'>(</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>c</span>
<a name="line-29"></a>
<a name="line-30"></a><a name="updPtr"></a><span class='hs-definition'>updPtr</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>a</span>
<a name="line-31"></a><span class='hs-comment'>{-# INLINE updPtr #-}</span>
<a name="line-32"></a><span class='hs-definition'>updPtr</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>p</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span> <span class='hs-layout'>{</span> <span class='hs-conid'>Ptr</span> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-varid'>q</span> <span class='hs-varid'>c</span> <span class='hs-layout'>}</span>
<a name="line-33"></a>
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