48 lines
3.7 KiB
HTML
48 lines
3.7 KiB
HTML
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN'
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<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>
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<head>
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<meta http-equiv='Content-Type' content='text/html; charset=utf-8'/>
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<title>c arrays</title>
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<link href='reno.css' type='text/css' rel='stylesheet'/>
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</head>
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<body>
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<div class="body-0">
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<div class="body-1">
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<div>
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<h1>QVM: Quaternions, Vectors, Matrices</h1>
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</div>
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<!-- Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
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<div class="RenoIncludeDIV"><div class="RenoAutoDIV"><h3>C Arrays</h3>
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</div>
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<p>In <i><span class="RenoLink"><a href="boost_qvm_quat_traits_array_hpp.html">boost/qvm/quat_traits_array.hpp</a></span></i>, <i><span class="RenoLink"><a href="boost_qvm_vec_traits_array_hpp.html">boost/qvm/vec_traits_array.hpp</a></span></i> and <i><span class="RenoLink"><a href="boost_qvm_mat_traits_array_hpp.html">boost/qvm/mat_traits_array.hpp</a></span></i> Boost QVM defines appropriate <i><span class="RenoLink"><a href="quat_traits.html">quat_traits</a></span></i>, <i><span class="RenoLink"><a href="vec_traits.html">vec_traits</a></span></i> and <i><span class="RenoLink"><a href="mat_traits.html">mat_traits</a></span></i> specializations that allow Boost QVM functions to operate directly on plain old C arrays:</p>
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<pre>float v[3] = {0,0,7};
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float3 vrot = <span class="RenoLink"><a href="rotx_mat_scalar_.html">rotx_mat</a></span><3>(3.14159f) <span class="RenoLink"><a href="operator_times_mat_vec_.html">*</a></span> v;</pre>
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<p>Naturally, operator overloads cannot kick in if all elements of an expression are of built-in types. The following is illegal:</p>
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<pre>float v[3] = {0,0,7};
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v *= 42;</pre>
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<p>The <i><span class="RenoLink"><a href="vref.html">vref</a></span></i> and <i><span class="RenoLink"><a href="mref.html">mref</a></span></i> function templates can be used to work around this issue:</p>
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<pre>float v[3] = {0,0,7};
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<span class="RenoLink"><a href="vref.html">vref</a></span>(v) <span class="RenoLink"><a href="operator_mul_eq_vec_scalar_.html">*=</a></span> 42;</pre>
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</div><div class="RenoIncludeDIV"><div class="RenoHR"><hr/></div>
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<p><b>Tutorial navigation:</b> <span class="RenoLink"><a href="quaternions_vectors_matrices.html">Quaternions, Vectors, Matrices</a></span> | <span class="RenoLink">C Arrays</span> | <span class="RenoLink"><a href="Views.html">Views</a></span> | <span class="RenoLink"><a href="Swizzling.html">Swizzling</a></span> | <span class="RenoLink"><a href="Interoperability.html">Interoperability</a></span><span class="RenoBR"> </span><br/><span class="RenoBR"> </span><br/>See also: <span class="RenoLink"><a href="index.html">Boost QVM</a></span></p>
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</div><!-- Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
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<small>Copyright (c) 2008-2016 by Emil Dotchevski and Reverge Studios, Inc.<br/>
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Distributed under the <a href="http://www.boost.org/LICENSE_1_0.txt">Boost Software License, Version 1.0</a>.</small>
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</p>
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