operator< <array>
Array comparison, less than.
template<Ty, std::size_t N>
bool operator<(
const array<Ty, N>& left,
const array<Ty, N>& right);
Parameters
Ty
The type of an element.N
The size of the array.left
Left container to compare.right
Right container to compare.
Remarks
The template function overloads operator< to compare two objects of template class array Class (TR1). The function returns lexicographical_compare(left.begin(), left.end(), right.begin()).
Example
// std_tr1__array__operator_lt.cpp
// compile with: /EHsc
#include <array>
#include <iostream>
typedef std::array<int, 4> Myarray;
int main()
{
Myarray c0 = {0, 1, 2, 3};
// display contents " 0 1 2 3"
for (Myarray::const_iterator it = c0.begin();
it != c0.end(); ++it)
std::cout << " " << *it;
std::cout << std::endl;
Myarray c1 = {4, 5, 6, 7};
// display contents " 4 5 6 7"
for (Myarray::const_iterator it = c1.begin();
it != c1.end(); ++it)
std::cout << " " << *it;
std::cout << std::endl;
// display results of comparisons
std::cout << std::boolalpha << " " << (c0 < c0);
std::cout << std::endl;
std::cout << std::boolalpha << " " << (c0 < c1);
std::cout << std::endl;
return (0);
}
0 1 2 3 4 5 6 7 false true
Requirements
Header: <array>
Namespace: std