Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for an old version of boost. Click here for the latest Boost documentation.

Function operator!

boost::logic::operator! — Computes the logical negation of a tribool.


tribool operator!(tribool x);


Returns: the logical negation of the tribool, according to the table:

false true
true false
indeterminate indeterminate

Throws: Will not throw.

Copyright 2002-2004 Douglas Gregor