Syntax:
#include <valarray> size_t size() const;
The size() function returns the number of elements in the valarray.
#include <valarray> #include <iostream> const int vd[] = {1,2,3,4,5}; std::valarray<int> v1(vd,5); std::cout << v1.size() << std::endl;
Will produce this output:
5