https://bugs.llvm.org/show_bug.cgi?id=47791
Bug ID: 47791
Summary: Strange note when calling lvalue-qualified method on
rvalue
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: aaronpuch...@alice-dsl.net
CC: llvm-bugs@lists.llvm.org, neeil...@live.com,
richard-l...@metafoo.co.uk
When compiling this with -fsyntax-only:
struct X {
X& operator=(const X&) &;
};
X f();
void g(const X& x) {
f() = x;
}
We get
<stdin>:7:9: error: no viable overloaded '='
f() = 2;
~~~ ^ ~
<stdin>:2:8: note: candidate function not viable: no known conversion from 'X'
to 'X' for object argument
X& operator=(const X&) &;
^
The error is expected, but the note is confusing: why would we need a
conversion from 'X' to 'X'? The problem here is not the type, but the value
category.
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