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not equal

Compare two sequences for inequality.

Synopsis
template <typename Seq1, typename Seq2>
bool
operator!=(Seq1 const& a, Seq2 const& b);
Parameters

Parameter

Requirement

Description

a, b

Instances of Sequence

Sequence(s) to compare

Expression Semantics
a != b

Return type: bool

Requirements:

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 !(a == b).

Header
#include <boost/fusion/sequence/comparison/not_equal_to.hpp>
#include <boost/fusion/include/not_equal_to.hpp>
Example
vector<int, char> v3(5, 'b');
vector<int, char> t4(2, 'a');
assert(v1 != v3);
assert(v1 != t4);
assert(!(v1 != v2));

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