Performance Statements

Question

I know that C supports functional statements with assert(). Is there a method / library that supports performance statements in C / C ++? Are there any other languages?

Something along the lines of the following:

perf_assert_begin(ID1)
...
...
/* assert the time taken is less than 2000 ms */
perf_assert_end(ID1, interval(ID1) < 2000)

Answer 1

Adoption can be performed via assertout <cassert>or static_assertwhich is built into the language.
So, why not take the time manually and then check the time difference in the expression assert?

#include <cassert>
#include <chrono>

#ifndef NDEBUG
auto start = std::chrono::high_resolution_clock::now();
#endif
...
#ifndef NDEBUG
assert(std::chrono::duration_cast<milliseconds>(
    std::chrono::high_resolution_clock::now() - start).count() < 2000
);
#endif

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