syntaxError - cppcheck 2.12.1

[Toni Neubert]

When using the following library/code: https://godbolt.org/z/8s33YjbWe

cppchecks stops with a "syntaxError" without deeper explanation:

<error id="syntaxError" severity="error" msg="syntax error" verbose="syntax error" file0="/builds/....cpp">

Since the code works well with clang-16, I tried to use cppcheck with the: --clang=clang-16
But than I get (for every file, unrelated tho the code):

<error id="internalError" severity="error" msg="Bailing out from analysis: Processing Clang AST dump failed: converting &apos;&apos; to integer failed - not an integer" verbose="Bailing out from analysis: Processing Clang AST dump failed: converting &apos;&apos; to integer failed - not an integer">

[CHR]

Thanks for reporting, see https://trac.cppcheck.net/ticket/11275

[Toni Neubert]

Thank you for the fast response.

cppcheck fails on one other parts too:

• https://github.com/Viatorus/emio/blob/main/include/emio/detail/format/formatter.hpp#L793
  <error id="user-content-internalAstError" severity="error" msg="Syntax Error: AST broken, binary operator '||' doesn't have two operands." verbose="Syntax Error: AST broken, binary operator '||' doesn't have two operands." file0="..."></error>

What I also found out is, that cppcheck does not support __VA_OPT__.

#define FOO(x, ...) call(x __VA_OPT__(, ) __VA_ARGS__)

void call(int i, int j) {}

int main() {
  FOO(1, 2);
}

[Toni Neubert]

Thank you for fixing this.

Any updates here for the other two issues?

[Toni Neubert]

Thank you for fixing this.

Any updates here for the other two issues?

[CHR]

C++20 issues are collected here: https://trac.cppcheck.net/ticket/10251