# Comparison operations

Compare things in various ways.

# <...Ts> in(Ts &&... vs)

# <piped/cmp.hpp>

template<typename... Ts>
auto piped::in(Ts &&... vs)

# Description

Test whether the input is in the specified list of values.

... || v == vs.

Example:

if(x | in(1, 2, 3)) {
  // ...
}