61 lines
3.9 KiB
HTML
61 lines
3.9 KiB
HTML
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<title>deduce_quat</title>
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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>deduce_quat</h3>
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</div>
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<div class="RenoIncludeDIV"><p><span class="RenoEscape">#<!--<wiki>`#</wiki>--></span>include <<span class="RenoLink"><a href="boost_qvm_deduce_quat_hpp.html">boost/qvm/deduce_quat.hpp</a></span>></p>
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<pre>namespace boost
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{
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namespace <span class="RenoLink"><a href="qvm.html">qvm</a></span>
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{
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<span class="RenoIncludeSPAN"> template <class Q>
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struct <span class="RenoLink">deduce_quat</span>
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{
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typedef Q type;
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};</span>
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}
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}</pre>
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</div><h4>Assumption:</h4>
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<p><i><span class="RenoLink"><a href="is_quat.html">is_quat</a></span><Q>::value</i> is true.</p>
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<h4>Requirements:</h4>
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<div><ul><li><i><span class="RenoLink"><a href="is_quat.html">is_quat</a></span><<span class="RenoLink">deduce_quat</span><Q>::type>::value</i> must be <i>true</i></li>
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<li><i><span class="RenoLink">deduce_quat</span><Q>::type</i> must be copyable</li>
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</ul></div>
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<p>This template is used by Boost QVM whenever it needs to deduce a copyable quaternion type from a single user-supplied function parameter of quaternion type. Note that <i>Q</i> itself may be non-copyable.</p>
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<p>The main template definition returns <i>Q</i>, which means that it is suitable only for copyable quaternion types. Boost QVM also defines (partial) specializations for the non-copyable quaternion types it produces. Users can define other (partial) specializations for their own types.</p>
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<p>A typical use of the <i><span class="RenoLink">deduce_quat</span></i> template is for specifying the preferred quaternion type to be returned by the generic function template overloads in Boost QVM depending on the type of their arguments.</p>
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</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="boost_qvm_deduce_quat_hpp.html">boost/qvm/deduce_quat.hpp</a> | <a href="boost_qvm_quat_traits_array_hpp.html">boost/qvm/quat_traits_array.hpp</a> | <a href="conjugate.html">conjugate</a> | <a href="inverse_quat_.html">inverse(quat)</a> | <a href="normalized_quat_.html">normalized(quat)</a> | <a href="operator_times_quat_scalar_.html">operator*(quat,scalar)</a> | <a href="operator_minus_quat_.html">operator-(quat)</a> | <a href="operator_over_quat_scalar_.html">operator/(quat,scalar)</a></span>
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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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<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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