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decl.c (add_binding): Don't complain about a redeclaration of a semantically identical typedef in a... 

* decl.c (add_binding): Don't complain about a redeclaration of a
	semantically identical typedef in a local scope.

From-SVN: r27213
This commit is contained in:
Mark Mitchell 1999-05-28 02:37:13 +00:00 committed by Mark Mitchell
parent 6c123729de
commit 263505afaf
3 changed files with 36 additions and 0 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
1999-05-28 Mark Mitchell <mark@codesourcery.com>
* decl.c (add_binding): Don't complain about a redeclaration of a
semantically identical typedef in a local scope.
1999-05-28 Nathan Sidwell <nathan@acm.org>
* decl.c (complete_array_type): Allocate off same obstack. Fix

14
gcc/cp/decl.c
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@ -1143,6 +1143,20 @@ add_binding (id, decl)
BINDING_VALUE (binding) = decl;
INHERITED_VALUE_BINDING_P (binding) = 0;
}
else if (TREE_CODE (BINDING_VALUE (binding)) == TYPE_DECL
&& TREE_CODE (decl) == TYPE_DECL
&& DECL_NAME (decl) == DECL_NAME (BINDING_VALUE (binding))
&& same_type_p (TREE_TYPE (decl),
TREE_TYPE (BINDING_VALUE (binding))))
/* We have two typedef-names, both naming the same type to have
the same name. This is OK because of:
[dcl.typedef]
In a given scope, a typedef specifier can be used to redefine
the name of any type declared in that scope to refer to the
type to which it already refers. */
ok = 0;
else
{
cp_error ("declaration of `%#D'", decl);

17
gcc/testsuite/g++.old-deja/g++.other/typedef7.C Normal file
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@ -0,0 +1,17 @@
// Build don't link:
// Origin: Mark Mitchell <mark@codesourcery.com>
typedef int I;
typedef int I;
struct A {
typedef int I;
typedef int I;
};
template <class T>
struct S {
typedef int I;
typedef int I;
};