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  27 <a name="header.boost.test.tools.floating_point_comparison_hpp"></a>Header &lt;<a href="../../../../../../../../boost/test/tools/floating_point_comparison.hpp" target="_top">boost/test/tools/floating_point_comparison.hpp</a>&gt;</h4></div></div></div>
  28 <p>algorithms for comparing floating point values </p>
  29 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
  30   <span class="keyword">namespace</span> <span class="identifier">math</span> <span class="special">{</span>
  31     <span class="keyword">namespace</span> <span class="identifier">fpc</span> <span class="special">{</span>
  32       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FPT<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="../../../../boost/math/fpc/close_at_tolerance.html" title="Class template close_at_tolerance">close_at_tolerance</a><span class="special">;</span>
  33       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="../../../../boost/math/fpc/is_abstr_idm46279113146800.html" title="Class template is_abstract_class_or_function">is_abstract_class_or_function</a><span class="special">;</span>
  34
  35       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FPT<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../../boost/math/fpc/percent_tolerance_t.html" title="Struct template percent_tolerance_t">percent_tolerance_t</a><span class="special">;</span>
  36
  37       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FPT<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="../../../../boost/math/fpc/small_with_tolerance.html" title="Class template small_with_tolerance">small_with_tolerance</a><span class="special">;</span>
  38
  39       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../../boost/math/fpc/tolerance_based.html" title="Struct template tolerance_based">tolerance_based</a><span class="special">;</span>
  40       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">bool</span> enabled<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../../boost/math/fpc/tolerance_based_delegate.html" title="Struct template tolerance_based_delegate">tolerance_based_delegate</a><span class="special">;</span>
  41
  42       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../../boost/math/fpc/toleranc_idm46279113120752.html" title="Struct template tolerance_based_delegate&lt;T, false&gt;">tolerance_based_delegate</a><span class="special">&lt;</span><span class="identifier">T</span><span class="special">,</span> <span class="keyword">false</span><span class="special">&gt;</span><span class="special">;</span>
  43       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../../boost/math/fpc/toleranc_idm46279113118224.html" title="Struct template tolerance_based_delegate&lt;T, true&gt;">tolerance_based_delegate</a><span class="special">&lt;</span><span class="identifier">T</span><span class="special">,</span> <span class="keyword">true</span><span class="special">&gt;</span><span class="special">;</span>
  44
  45       <span class="comment">// Method for comparing floating point numbers. </span>
  46       <span class="keyword">enum</span> <a name="boost.math.fpc.strength"></a>strength <span class="special">{</span> FPC_STRONG, FPC_WEAK <span class="special">}</span><span class="special">;</span>
  47       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FPT<span class="special">&gt;</span>
  48         <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span>
  49         <a name="boost.math.fpc.operator_idm46279113113248"></a><span class="keyword">operator</span><span class="special">&lt;&lt;</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> out<span class="special">,</span> <a class="link" href="../../../../boost/math/fpc/percent_tolerance_t.html" title="Struct template percent_tolerance_t">percent_tolerance_t</a><span class="special">&lt;</span> <span class="identifier">FPT</span> <span class="special">&gt;</span> t<span class="special">)</span><span class="special">;</span>
  50       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FPT<span class="special">&gt;</span>
  51         <a class="link" href="../../../../boost/math/fpc/percent_tolerance_t.html" title="Struct template percent_tolerance_t">percent_tolerance_t</a><span class="special">&lt;</span> <span class="identifier">FPT</span> <span class="special">&gt;</span> <a name="boost.math.fpc.percent_tolerance"></a><span class="identifier">percent_tolerance</span><span class="special">(</span><span class="identifier">FPT</span> v<span class="special">)</span><span class="special">;</span>
  52       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FPT<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="boost.math.fpc.is_small"></a><span class="identifier">is_small</span><span class="special">(</span><span class="identifier">FPT</span> fpv<span class="special">,</span> <span class="identifier">FPT</span> tolerance<span class="special">)</span><span class="special">;</span>
  53     <span class="special">}</span>
  54   <span class="special">}</span>
  55 <span class="special">}</span></pre>
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