https://bugs.llvm.org/show_bug.cgi?id=48886
Bug ID: 48886
Summary: consteval function not allowed in default argument to
constexpr constructor
Product: clang
Version: 11.0
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++2a
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
Hello,
the following valid code is currently rejected by Clang 11 and trunk
(https://godbolt.org/z/645McM):
consteval int Fun() { return 0; }
struct Test {
constexpr Test(int loc = Fun()) {}
};
Test t{};
The error is:
<source>:4:28: error: cannot take address of consteval function 'Fun' outside
of an immediate invocation
constexpr Test(int loc = Fun()) {}
^
<source>:1:15: note: declared here
consteval int Fun() { return 0; }
^
1 error generated.
Compiler returned: 1
I had a brief communication with Richard Smith who confirmed that the code
above is valid.
I assume this bug is similar to https://bugs.llvm.org/show_bug.cgi?id=47714
Best,
Andreas
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