[llvm-bugs] [Bug 40598] New: diagnostics: "no return statement in constexpr function" when return exists but has bad type

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40598

            Bug ID: 40598
           Summary: diagnostics: "no return statement in constexpr
                    function" when return exists but has bad type
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: comexk at gmail.com
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

Given

constexpr int foo() {
    return "asdf";
}

Clang produces:

<source>:2:12: error: cannot initialize return object of type 'int' with an
lvalue of type 'const char [5]'
    return "asdf";
           ^~~~~~
<source>:1:15: error: no return statement in constexpr function
constexpr int foo() {


The second error is clearly unhelpful in this case.

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