Bug 7808 - Compiler ignores cast from 'id<Protocol>' to 'id' or from 'id<Protocol1>' to 'id<Protocol2>'
Summary: Compiler ignores cast from 'id<Protocol>' to 'id' or from 'id<Protocol1>' to ...
Status: RESOLVED FIXED
Alias: None
Product: gcc
Classification: Unclassified
Component: objc (show other bugs)
Version: 3.3
: P3 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2002-09-02 03:36 UTC by Nicola Pero
Modified: 2003-07-25 17:33 UTC (History)
2 users (show)

See Also:
Host:
Target:
Build:
Known to work:
Known to fail:
Last reconfirmed:

Attachments
nico.m (183 bytes, application/octet-stream)
2003-05-21 15:17 UTC, Nicola Pero 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Nicola Pero 2002-09-02 03:36:01 UTC 
The compiler seems to be ignoring casts from 'id<Protocol>'
to 'id', and from 'id<Protocol1>' to 'id<Protocol2>'.

It's a regression: previous compilers (eg 2.95 and 2.91.66)
did the cast properly.

Release:
GCC 3.3 (also reported in 3.2)

How-To-Repeat:
Compile the attached testcase - no warnings should be 
generated.

Under 3.3 (and, I was told, under 3.2) spurious warnings are
generated instead because the compiler seems to be ignoring
the casts
Comment 1 Nicola Pero 2002-09-17 07:28:19 UTC 
State-Changed-From-To: open->closed
State-Changed-Why: Fixed on GCC 3.3 CVS