http://llvm.org/bugs/show_bug.cgi?id=18741
Bug ID: 18741
Summary: Incorrect error message when attempting to overload
within extern "C" block
Product: clang
Version: 3.3
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Compiling the following program with clang 3.3 (and 3.5 somebody told me):
extern "C" {
void Foo(void *arg1) {
}
bool Foo(void *arg1, void *arg2) {
return true;
}
}
...produces the error message "error: functions that differ only in their
return type cannot be overloaded". This is confusing, because of course they
do not differ only in their return type. I think the actual reason the
overloading is not allowed is that it is within an extern "C" block. (I
originally hit this in a large header file where I didn't realize the function
was in an extern "C" block.)
If the second Foo is changed to have a return type void, then you get the error
message "error: conflicting types for 'Foo'", which still doesn't mention that
types only conflict because of the extern "C" block, but at least it isn't
wrong.
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