/usr/include/trilinos/Tsqr_TrivialTimer.hpp is in libtrilinos-tpetra-dev 12.12.1-5.
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#ifndef __TSQR_TrivialTimer_hpp
#define __TSQR_TrivialTimer_hpp
#include <string>
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
namespace TSQR {
/// \class TrivialTimer
/// \brief Satisfies TimerType concept trivially.
///
/// This is a "prototype" for the TimerType concept; it satisfies
/// the concept trivially.
class TrivialTimer {
public:
/// Constructor.
///
/// \param name [in] Timer label
/// \param doStart [in] Whether to start timer on instantiation
TrivialTimer (const std::string& theName, bool doStart = false);
/// \brief Start the timer.
///
/// This is a trivial timer, so this implementation does not
/// actually return valid times. However, it satisfies our
/// TimerType concept.
void start (bool reset = false);
//! Stop the timer and return (fake) elapsed time.
double stop ();
//! Whether this timer is running
bool isRunning () const { return isRunning_; }
//! Name of this timer object
const std::string& name() const { return name_; }
private:
//! Name of this timer
std::string name_;
/// \brief Counter, used to implement trivial timer feature.
///
/// In order to compute the "resolution" of this fake timer, we
/// add a counter which is incremented on each call to \c stop().
/// The \c stop() method computes a fake timing result based on
/// the counter value.
size_t counter_;
//! Whether this timer is running
bool isRunning_;
//! Verify the TimerType concept
static void verifyConcept();
};
} // namespace TSQR
#endif // __TSQR_TrivialTimer_hpp
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