Brian Dessent wrote:
Jeffrey Holle wrote:
On release builds, wxWidgets code emits a lot of these warnings:
warning: dereferencing type-punned pointer will break strict-aliasing
rules
Questions:
1. Are these warnings benign? If so can they be suppressed?
2. If not, what level of optimization should I regress to avoid these
warnings?
I would certainly not ignore them. They indicate that the code being
compiled probably violates the ISO C standard rules for type aliasing,
which _may_ break the aliasing rules.
If you examine the code being warned about, and find it benign, you may insert
an intermediate void * cast to silence the warning.
nathan
--
Nathan Sidwell :: http://www.codesourcery.com :: CodeSourcery
nathan@xxxxxxxxxxxxxxxx :: http://www.planetfall.pwp.blueyonder.co.uk
