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typeck.c (build_const_cast): Disallow use of const_cast to anything but a pointer or reference type.

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* typeck.c (build_const_cast): Disallow use of const_cast to
	anything but a pointer or reference type.

From-SVN: r26708
This commit is contained in:
Mark Mitchell 1999-04-30 12:17:10 +00:00 • committed by Mark Mitchell
parent a0e894a8cc
commit b2ef49c88b
3 changed files with 24 additions and 0 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
1999-04-30 Mark Mitchell <mark@codesourcery.com>
* typeck.c (build_const_cast): Disallow use of const_cast to
anything but a pointer or reference type.
1999-04-30 Nathan Sidwell <nathan@acm.org>
* decl.c (cp_finish_decl): Don't permit arrays of abstract or

8
gcc/cp/typeck.c
View file

@ -5633,6 +5633,14 @@ build_const_cast (type, expr)
if (type == error_mark_node || expr == error_mark_node)
return error_mark_node;
if (!POINTER_TYPE_P (type) && !TYPE_PTRMEMFUNC_P (type))
{
cp_error ("`%T' is not a pointer, reference, or pointer-to-member type",
type);
cp_error ("as required by const_cast");
return error_mark_node;
}
if (TREE_CODE (expr) == OFFSET_REF)
expr = resolve_offset_ref (expr);

11
gcc/testsuite/g++.old-deja/g++.other/cast2.C Normal file
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@ -0,0 +1,11 @@
// Build don't link:
// Origin: Mark Mitchell <mark@codesourcery.com>
struct A {
};
int main()
{
A a;
const_cast<const A>(a); // ERROR - const_cast requires pointer/ref types
}