C++ lambdas for std::sort and std::lower_bound/equal_range on a struct element in a sorted vector of structs

Question

I have a std::vector of this struct:

struct MS
{        
  double aT;
  double bT;
  double cT;
};

which I want to use std::sort on aswell

Answer 1

The algorithms std::sort, std::lower_bound, and std::binary_search take a predicate that compares two elements of the container. Any lambda that compares two MS objects and returns true when they are in order should work for all three algorithms.