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[Bug c/33076] Warning when passing a pointer to a const array to a function that expects a pointer to a non-cast one
- From: "jozef dot behran at krs dot sk" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 26 Sep 2007 12:18:13 -0000
- Subject: [Bug c/33076] Warning when passing a pointer to a const array to a function that expects a pointer to a non-cast one
- References: <bug-33076-14983@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from jozef dot behran at krs dot sk 2007-09-26 12:18 -------
> Neither C nor C++ have qualified array types, only arrays of qualified
> element types, but C++ has different rules from C regarding conversions
> involving qualifiers, which allow some conversions (involving arrays or
> pointers to pointers) not allowed in C.
And another point: Whether C/C++ have or don't have qualified array types,
still the difference between the "const caca *" and "caca *" types is a "const"
qualifier being applied to some part of the "caca *" base type. Therefore the
types must be compatible when the automatic type conversion involved only adds
"const" qualifiers to the type. Therefore the warnings are not legitimate.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33076