Exploring return value optimization
Return value optimization (RVO) deserves special mention. Modern compilers optimize returning objects from functions, effectively transforming what looks like a copy into a move, making the operation highly efficient. This is a testament to the evolving nature of C++ and its inclination towards performance optimization.
Here’s a code example to demonstrate the concept of RVO:
#include <iostream> #include <vector> class Sample { public: Sample() { std::cout << "Constructor called!\n"; } Sample(const Sample &) { std::cout << "Copy Constructor called!\n"; } Sample(Sample &&) noexcept { std::cout << "Move Constructor called!\n"; } ~Sample() { std::cout << "Destructor called!\n"; } }; Sample createSample() { return Sample(); } int main...