The most common optimization that's applied to C++ is the speed of execution. To optimize C++ for speed, we must start by developing different approaches to the same problem and then benchmark each solution to determine which solution executes the fastest. Benchmarking tools such as Hayai, a C++ based benchmarking library on GitHub, aid in making this determination. To explain this, let's look at a simple example:
#include <string>#include <vector>#include <hayai.hpp>std::vector<std::string> data;BENCHMARK(vector, push_back, 10, 100){ data.push_back("The answer is: 42");}BENCHMARK(vector, emplace_back, 10, 100){ data.emplace_back("The answer is: 42");}
When we execute the preceding code, we get the following output:
In the ...
