lambda的用法

#include 
#include 
#include 

//值捕获
void lambda_value_capture()
{
	int value = 1;
	auto copy_value = [value] {
		return value;
	};
	value = 100;
	auto stored_value = copy_value();
	std::cout << "stored_value =" << stored_value << std::endl;
}

//引用捕获
void lambda_reference_capture()
{
	int value = 1;
	auto copy_value = [&value] {
		return value;
	};
	value = 100;
	auto stored_value = copy_value();
	std::cout << "stored_value =" << stored_value << std::endl;
}

//表达式捕获
void lambda_expression_capture()
{
	auto important = std::make_unique(1);
	auto add = [v1 = 1, v2 = std::move(important)](int x, int y)->int{
		return x + y + v1 + (*v2);
	};
	std::cout << add(3, 4) << std::endl;
}

//泛型lambda
auto add = [](auto x, auto y)
{
	return x + y;
};

int main()
{
	
	lambda_value_capture();
	lambda_reference_capture();
	lambda_expression_capture();
	std::cout << add(1, 2) << std::endl;
	std::cout << add(1.1, 2.2) << std::endl;

	return 0;

}