http://llvm.org/bugs/show_bug.cgi?id=7410
Summary: Bad return type causes extra "abstract class" error
Product: clang
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Keywords: quality-of-implementation
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
$ cat test.cc
struct BaseReturn {};
struct Base {
virtual BaseReturn Foo() = 0;
};
struct X {}; // Get a second test case by deleting this line.
struct Derived : Base {
X Foo();
};
Derived d;
$ ./clang++ -fsyntax-only test.cc
test.cc:8:5: error: virtual function 'Foo' has a different return type ('X')
than the function it overrides (which has return type 'BaseReturn')
X Foo();
^
test.cc:4:22: note: overridden virtual function is here
virtual BaseReturn Foo() = 0;
^
test.cc:11:9: error: variable type 'Derived' is an abstract class
Derived d;
^
test.cc:4:22: note: pure virtual function 'Foo'
virtual BaseReturn Foo() = 0;
^
2 errors generated.
Clang knows that we were trying to override the abstract method, so it
shouldn't later complain that it wasn't overridden. There's a similar problem
if X simply doesn't exist.
--
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
