ccharwchar-tpython-bindings

Cannot convert ‘char**’ to ‘wchar_t**’

The code excerpt:

int main(int argc, char *argv[]){  
    PySys_SetArgv(argc, argv);

produces error message

error: cannot convert ‘char**’ to ‘wchar_t**’ for argument ‘2’ to ‘void PySys_SetArgv(int, wchar_t**)’

How do I convert argv?

Solution

  • This API is part of python 3.0 and above and in my knowledge, there's no easy way to get this done. However, I think, you can try converting the argv to a w_char ** and then call PySys_SetArgv(). mbstowcs() may come handy in this case.

    For example, some pseudo-code (not tested) will look like

    wchar_t **changed_argv;

changed_argv = malloc((argc)* sizeof*changed_argv);

for (int i = 0; i < argc, i++)
{
    changed_argv[i] = malloc(strlen(argv[i]) + 1);
    mbstowcs(changed_argv[i], argv[i], strlen(argv[i]) + 1);
}