Lexicographically compare two sequences.
template <typename Seq1, typename Seq2> bool operator<=(Seq1 const& a, Seq2 const& b);
a <= b
Return type: bool
For each element, e1, in sequence a, and for each element, e2, in sequence b, a < b is a valid expression returning a type that is convertible to bool.
An attempt to compare two Sequences of different lengths results in a compile time error.
Semantics: Returns !(b < a).
#include <boost/fusion/sequence/comparison/less_equal.hpp> #include <boost/fusion/include/less_equal.hpp>