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<h1 class="topictitle1">tick_count Class</h1>
<div>
<div class="section"><h2 class="sectiontitle">Summary</h2>
<p>Class for computing wall-clock times.</p>
</div>
<div class="section"><h2 class="sectiontitle">Syntax</h2>
<pre>class tick_count;</pre>
</div>
<div class="section"><h2 class="sectiontitle">Header</h2>
<pre>#include "tbb/tick_count.h"</pre>
</div>
<div class="section"><h2 class="sectiontitle">Description</h2>
<p>A <samp class="codeph">tick_count</samp> is an absolute timestamp. Two <samp class="codeph">tick_count</samp> objects may be subtracted to compute a relative time <samp class="codeph">tick_count::interval_t</samp>, which can be converted to seconds. </p>
<p>Example</p>
<pre>using namespace tbb;
void Foo() {
tick_count t0 = tick_count::now();
...action being timed...
tick_count t1 = tick_count::now();
printf("time for action = %g seconds\n", (t1-t0).seconds() );
}</pre>
</div>
<div class="section"><h2 class="sectiontitle">Members</h2>
<pre>
namespace tbb {
class tick_count {
public:
class interval_t;
static tick_count now();
static double resolution();
};
tick_count::interval_t operator-( const tick_count& t1,
const tick_count& t0 );
} // tbb</pre>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="../../reference/timing.htm">Timing</a></div>
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<li class="ulchildlink"><a href="../../reference/timing/tick_count_cls/tick_count_cls_members.htm">tick_count Class Members</a><br>
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<li class="ulchildlink"><a href="../../reference/timing/tick_count_cls/tick_count_interval_t_cls.htm">tick_count::interval_t Class</a><br>
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