https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104640
Bug ID: 104640
Summary: incomplete unicode support for User-defined literals
Product: gcc
Version: 11.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: maik.urbannek at cattatech dot de
Target Milestone: ---
```
int operator""_π(const unsigned long long i){return (static_cast<int>(i));}
template <char...> double operator "" _π(){return 12.0;}
int main() {
const double d=0.0_π;
return 234_π+static_cast<int>(d);
}
```
In my opinion this should work (clang compiles it).
gcc produces the following error:
```
error: expected initializer before '\U000003c0'
1 | int operator""_π(const unsigned long long i){return
(static_cast<int>(i));}
| ^
Compiler returned: 1
```
Gcc(since gcc10) can compile the second operator (line 3), but not the first
(line 1).
