C++ algorithm to calculate least common multiple for multiple numbers

Question

Is there a C++ algorithm to calculate the least common multiple for multiple numbers, like lcm(3,6,12) or lcm(5,7,9,12)?

Answer 1

Using GCC with C++14 following code worked for me:

#include 
#include 

std::vector v{4, 6, 10};    
auto lcm = std::accumulate(v.begin(), v.end(), 1, [](auto & a, auto & b) {
    return abs(a * b) / std::__gcd(a, b);
});

In C++17 there is std::lcm function (http://en.cppreference.com/w/cpp/numeric/lcm) that could be used in accumulate directly.