[Monotone-devel] Updated Issue 181 - warning: dereferencing type-punned pointer will break strict-aliasing rules (monotone)

[code]

Hello,

The following issue has been updated:

181 - warning: dereferencing type-punned pointer will break strict-aliasing 
rules
Project: monotone
Status: New
Reported by: Peter Volkov
URL: https://code.monotone.ca/p/monotone/issues/181/
Labels:
 Type:Defect
 Priority:Medium

Comments (last first):

# By Richard Levitte, Sep 12, 2011:

It boils down to the use of CMD_REF.  The way it's used in those places is 
probably ill advised, would there be a better way?  Maybe a CMD_REF2 that 
doesn't cast to commands::command*...

# By Peter Volkov, Sep  5, 2011:

During monotone-1.0 build gcc reports following warnings:

src/commands.cc:450:57: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
src/commands.cc:460:88: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
src/automate.cc:2426:53: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
src/automate.cc:2441:73: warning: dereferencing type-punned pointer will break 
strict-aliasing rules


This may compile fine but exhibit random runtime failures.



--
Issue: https://code.monotone.ca/p/monotone/issues/181/