cppcheck 2.19.1: error: Syntax Error: AST broken

[Mike DeKoker]

Hello cppcheck folk,

I have some C++20 code that is accused of containing a syntax error:

template<std::uint16_t... Values>
consteval auto make_flags() -> std::uint16_t
{ return (std::uint16_t{0} | ... | Values); }

The above results in the following error:
error: Syntax Error: AST broken, binary operator '|' doesn't have two operands. [internalAstError]

Sample usage:

#include <cstdint>

template<std::uint16_t... Values>
consteval auto make_flags() -> std::uint16_t
{ return (std::uint16_t{0} | ... | Values); }

int main()
{
    return make_flags<1,2,4>();
}

I suspect something isn't expecting the non-type template parameter. For the time being, I just gate the code with the preprocessor when cppcheck runs. Thanks for the awesome tool!

Cheers,
Mike.

[CHR]

Thanks for reporting, ticket is here: https://trac.cppcheck.net/ticket/14477