计算C ++中多个函数的执行时间

Question

I have a function which in turn calls many functions. eg

void fun()
{
f1();
f2();
f3();
....
....
f50();
}

I want to calculate execution time of f1, f2....f50. Now if I calculate the time before and after execution of each function and then find the difference, I have to write it for all of these 50 functions which I want to avoid as it looks bad. Is there any simpler way to do this ?

Answer 1

使用一个包装函数，该包装函数将实际函数作为参数调用，并且仅在该包装函数中具有时序代码。