[Bug c++/20064] New: Types shall not be defined in casts in the strict mode.

[Bug c++/20064] New: Types shall not be defined in casts in the strict mode.

[msadoghi at ca dot ibm dot com]

Sourc code for t.cpp:
------------------------------------------------
int mymain()
	{
	void *p = (void *)(struct {int i;} *)0; /* error - can't define a type in a cast */
	return 0;
	}


------------------------------------------------



Expected Behaviour:
------------------------------------------------
t.cpp:3: error: ISO C++ forbids defining types within cast
------------------------------------------------



Actual Behaviour:
------------------------------------------------
t.cpp:3: warning: ISO C++ forbids defining types within cast
------------------------------------------------



t.ii generated with -save-temps option
------------------------------------------------
# 1 "t.cpp"
# 1 "t.cpp"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "t.cpp"
int mymain()
	{
	void *p = (void *)(struct {int i;} *)0;
	return 0;
	}

------------------------------------------------




Release:
------------------------------------------------
GCC Version: 3.2.0
------------------------------------------------




Environment:
System Type:
------------------------------------------------
Reading specs from /usr/libexec/gcc/darwin/ppc/3.3/specs
Thread model: posix
gcc version 3.3 20030304 (Apple Computer, Inc. build 1495)
 /usr/libexec/gcc/darwin/ppc/3.3/cc1plus -E -D__GNUG__=3 -quiet -v -D__GNUC__=3
-D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 -D__APPLE_CC__=1495 -D__DYNAMIC__
/home/msadoghi/scenario/common/t.cpp -fPIC -std=iso9899:199409 -pedantic
-D__private_extern__=extern t.ii
cc1plus: warning: "-std=iso9899:199409" is valid for C/ObjC but not for C++
ignoring nonexistent directory "/usr/ppc-darwin/include"
ignoring nonexistent directory "/Local/Library/Frameworks"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/gcc/darwin/3.3/c++
 /usr/include/gcc/darwin/3.3/c++/ppc-darwin
 /usr/include/gcc/darwin/3.3/c++/backward
 /usr/local/include
 /usr/include/gcc/darwin/3.3
 /usr/include
End of search list.
Framework search starts here:
 /System/Library/Frameworks
 /Library/Frameworks
End of framework search list.
 /usr/libexec/gcc/darwin/ppc/3.3/cc1plus -fpreprocessed t.ii -fPIC -quiet
-dumpbase t.cpp -auxbase t -pedantic -std=iso9899:199409 -version
-D__private_extern__=extern -o t.s
cc1plus: warning: "-std=iso9899:199409" is valid for C/ObjC but not for C++
GNU C++ version 3.3 20030304 (Apple Computer, Inc. build 1495) (ppc-darwin)
        compiled by GNU C version 3.3 20030304 (Apple Computer, Inc. build 1495).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=131072
/home/msadoghi/scenario/common/t.cpp: In function `int mymain()':
/home/msadoghi/scenario/common/t.cpp:3: warning: ISO C++ forbids defining types
   within cast
 /usr/libexec/gcc/darwin/ppc/as -arch ppc -o t.o t.s
------------------------------------------------




How-To-Repeat:
------------------------------------------------
g++ -v -save-temps -c -std=iso9899:199409 -pedantic t.cpp
------------------------------------------------


Note:
------------------------------------------------
This is a diagnostic test case. Compilation failure is expected on the strict mode,
where type is defined in a cast.
	
C++ ANSI Standard:
"Types shall not be defined in casts in the strict mode."


AIX, MACOS and LINUX all have a similar behaviors.
------------------------------------------------

-- 
           Summary: Types shall not be defined in casts in the strict mode.
           Product: gcc
           Version: 3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: msadoghi at ca dot ibm dot com
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20064

[Bug c++/20064] Types shall not be defined in casts in the strict mode.

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-02-18 21:29 -------
There are two things here, -pedantic does not enable strict mode, just the warnings for strict mode, 
use -pedantic-errors instead.

Anyways this is rejected by default with 3.4.0 and above.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20064