| Issue |
176808
|
| Summary |
10_literal.call() doesn't work - User defined literals can't call methods
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Peach1
|
```cpp
"10"_literal.call(); // call works fine
10_literal.call(); // error
```
10_literal.call(); does NOT work in clang - other C++ compilers allows this, clang does not.
"10"_literal.call(); works - but only for strings, not for integers.
How can clang be fixed so user-defined-literals can call methods on all literal types?
```cpp
struct A
{
int call()
{
return 123;
}
};
A operator ""_literal(unsigned long long x)
{
return {};
}
A operator ""_literal(const char *str, decltype(sizeof(0)) len)
{
return {};
}
void userdefined()
{
"10"_literal.call(); // call works fine
10_literal.call(); // error
// ^ No matching literal operator for call to 'operator""_literal.call' with argument of type 'unsigned long long' or 'const char *', and no matching literal operator template
// (it's parsed as '_a.call' instead of '_a' - it should stop at the '.' like the StringLiteralParser does
// is there an error in clang's NumericLiteralParse in clang/lib/Lex/LiteralSupport.cpp ?
(10_literal).call(); // call works fine
}
```
https://godbolt.org/z/vWhfzYbcc
It's parsed as '_literal.call' instead of '_literal' - it should stop at the '.' like the StringLiteralParser does.
Is the error in clang's `NumericLiteralParser` in clang/lib/Lex/LiteralSupport.cpp ?
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