CERT addon crashes on valid code

[valeros]

Hello! I'd like to report an issue with Cppcheck addons, but it seems the official Cppcheck issue tracker is closed for new registrations so I'm writing here.

I'm experiencing a strange issue with Cppcheck and the CERT/MISRA addons. This setup cannot analyze the following code that contains a struct with a nested union. It fails with a traceback from some of the Cppcheck's python scripts:

#include <stdio.h>

typedef struct test_t_st
{
    union
    {
        int block;
        char row;
    };
} test_t;

int main() {
    test_t temp;
    temp.block = 42;
    printf("%d\n", temp.block);
}

Error message:

C:\cppcheck\cppcheck --addon=cert.py main.c
Checking main.c ...
Bailing out from checking main.c since there was an internal error: Failed to execute 'python3.exe C:\cppcheck\addons\cert.py --cli main.c.dump'. Checking main.c.dump...
Traceback (most recent call last):
  File "C:\cppcheck\addons\cert.py", line 413, in <module>
    for cfg in data.iterconfigurations():
  File "C:\cppcheck\addons\cppcheckdata.py", line 950, in iterconfigurations
    cfg.setIdMap(cfg_arguments)
  File "C:\cppcheck\addons\cppcheckdata.py", line 760, in setIdMap
    self.set_id_map(functions_arguments)
  File "C:\cppcheck\addons\cppcheckdata.py", line 747, in set_id_map
    scope.setId(IdMap)
  File "C:\cppcheck\addons\cppcheckdata.py", line 407, in setId
    self.varlist.append(IdMap[v])
KeyError: '000000262C61E850'

[Daniel Marjamäki]

hmm.. I fail to reproduce with latest cppcheck-2.6. :-(

C:\Users\danielm>"\Program Files\Cppcheck\cppcheck.exe" --addon=cert fp1.c
Checking fp1.c ...

C:\Users\danielm>"\Program Files\Cppcheck\cppcheck.exe" --version
Cppcheck 2.6

[Daniel Marjamäki]

if you copy addons and you get mismatching versions this could happen. just a wild idea..