void run_exprtk_benchmark(T& x, T& y,
exprtk::expression<T>& expression,
const std::string& expr_string)
{
T total = T(0);
unsigned int count = 0;
exprtk::timer timer;
timer.start();
for (x = lower_bound_x; x <= upper_bound_x; x += delta)
{
for (y = lower_bound_y; y <= upper_bound_y; y += delta)
{
total += expression.value();
++count;
}
}
timer.stop();
if (T(0) != total)
printf("[exprtk] Total Time:%12.8f Rate:%14.3fevals/sec Expression: %s\n",
timer.time(),
count / timer.time(),
expr_string.c_str());
else
printf("run_exprtk_benchmark() - Error running benchmark for expression: %s\n",expr_string.c_str());
}
double CFunctionImpl::value(double x) {
this->x = x;
return expr.value();
}