http://llvm.org/bugs/show_bug.cgi?id=18432
Bug ID: 18432
Summary: befriending a member function of a nested class hides
its default arguments
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
usury:clang$ cat /tmp/red.cpp
struct A {
struct B {
B(int x = 0) {}
void foo(int x = 0);
};
friend B::B(int);
friend void B::foo(int);
};
void test() {
A::B b;
b.foo();
}
usury:clang$ clang -fsyntax-only /tmp/red.cpp
/tmp/red.cpp:11:8: error: no matching constructor for initialization of 'A::B'
A::B b;
^
/tmp/red.cpp:6:13: note: candidate constructor not viable: requires 1 argument,
but 0 were provided
friend B::B(int);
^
1 error generated.
usury:clang$ sed -i -e 's@friend B@//friend B@' /tmp/red.cpp
usury:clang$ clang -fsyntax-only /tmp/red.cpp
tmp/red.cpp:12:9: error: too few arguments to function call, expected 1, have 0
b.foo();
~~~~~ ^
/tmp/red.cpp:7:3: note: 'foo' declared here
friend void B::foo(int);
^
1 error generated.
These friend declarations are useless --- members of a nested class
automatically have friend-level access to the class --- but they shouldn't
interfere with the default arguments.
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