[Bug c++/22132] [4.0/4.1 Regression] Wrong code: upcasting a const class pointer to struct the class derives from (C/old-style cast)

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-07-15 
16:10 -------
Subject: Bug 22132

CVSROOT:        /cvs/gcc
Module name:    gcc
Changes by:     [EMAIL PROTECTED]       2005-07-15 16:10:08

Modified files:
        gcc/testsuite  : ChangeLog 
        gcc/cp         : ChangeLog call.c cp-tree.h typeck.c 
Added files:
        gcc/testsuite/g++.dg/expr: cast4.C 

Log message:
        PR c++/22132
        * call.c (implicit_conversion): Add c_cast_p parameter.
        (standard_conversion): Likewise.  Allow conversions between
        differently-qualified pointer types when performing a C-style
        cast.
        (add_function_candidate): Adjust callee.
        (build_builtin_candidate): Likewise.
        (build_user_type_conversion_1): Likewise.
        (conditional_conversion): Likewise.
        (can_convert_arg): Likewise.
        (can_convert_arg_bad): Likewise.
        (perform_implicit_conversion): Likewise.
        * cp-tree.h (comp_ptr_ttypes_const): Declare.
        * typeck.c (comp_ptr_ttypes_const): Give it external linkage.
        Return bool.
        
        PR c++/22132
        * g++.dg/expr/cast4.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5771&r2=1.5772
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/expr/cast4.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4819&r2=1.4820
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&r1=1.543&r2=1.544
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&r1=1.1153&r2=1.1154
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&r1=1.642&r2=1.643



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22132