Common operator notation: Difference between revisions

Revision as of 21:05, 14 May 2011

Revision as of 22:59, 14 May 2011

Line 54:

:<tt>-3! = -(3!)</tt>

==generalisationsGeneralizations of commonCommon operatorOperator notationNotation==

The use of operator precedence classes and associativities is just one way. However, it is not the most general way: this model cannot give an operator more precedence when competing with '−' than it can when competing with '+', while still giving '+' and '−' equivalent precedences and associativities. <!-- speculation... Can it be demonstrated that this is the only sensible way? I do not know, but any such demonstration would be welcome. --> A generalized version of this model (in which each operator can be given independent left and right precedences) can be found at [http://compilers.iecc.com/comparch/article/01-07-068].