#include#include int main() { sf::FloatRect rect(0, 0, 0, 0); // an empty FloatRect object if (rect.isEmpty()) { std::cout << "The rectangle is empty." << std::endl; } else { std::cout << "The rectangle is not empty." << std::endl; } return 0; }
The rectangle is empty.
#include#include struct FloatRect { float x, y, width, height; bool isEmpty() const { return std::abs(width) < 1e-6f && std::abs(height) < 1e-6f; } }; int main() { FloatRect rect{0, 0, 0, 0}; // an empty FloatRect object if (rect.isEmpty()) { std::cout << "The rectangle is empty." << std::endl; } else { std::cout << "The rectangle is not empty." << std::endl; } return 0; }
The rectangle is empty.This example defines a custom FloatRect struct with an isEmpty method that checks if the width and height are very close to zero. The function returns true for an empty FloatRect object. Package library: none (standard C++ code) In summary, the isEmpty function is a fundamental method to determine whether a FloatRect object is empty or not. It is available in various graphics libraries such as SFML, SDL, and Qt, but it can also be implemented as part of custom code.