template <typename TFunctor> void
operator()(
TFunctor&& a_functor)
Class: fcf::NTest::Duration
Package: fcfTest
File: test.hpp
Available from version: 1.0.1
Executes a callable object multiple times and measures the total execution time
The fcf::NTest::Duration call operator provides an automated way to perform benchmarking. When invoked, it executes the provided functor (lambda, function pointer, or function object) for the exact number of iterations specified during the Duration object's construction.
The method internally handles the timing lifecycle: it calls begin() before the loop and end() after all iterations are completed.
Arguments
TFunctor&& a_functor
- functor called to perform the measured operation. TFunctor - The type of the callable object to be measured.
Example: Benchmarking a Lambda
The most common usage for measuring small, inline code blocks.
fcf::NTest::Duration bench(1000);
bench([]() {
// Code to be measured
int x = 0;
for(int i = 0; i < 100; ++i) x += i;
});
fcf::NTest::log() << "Average time: " << bench.duration().count() << " ns" << std::endl;
Example: Benchmarking an Existing Function
Passing a function pointer to the duration object.
void heavy_workload() {
// Simulate work
std::this_thread::sleep_for(std::chrono::microseconds(10));
}
fcf::NTest::Duration bench(50);
bench(heavy_workload);
fcf::NTest::log() << "Total time: " << bench.totalDuration().count() << " ns" << std::endl;
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