Ping: [Patch, fortran] PR24558, PR20877 and PR25047 - module function alternate entries.

[François-Xavier Coudert]

Tobias' point (unless I misunderstood it) is that

>>   if (gfc_current_ns->parent == NULL)
>>     rc = gfc_get_symbol (name, NULL, result);
>>   else
>>     rc = gfc_get_symbol (name, gfc_current_ns->parent, result);

is, under the rules of the C language, strictly equivalent to

>>   rc = gfc_get_symbol (name, gfc_current_ns->parent, result);

and that

>   if (gfc_current_ns->parent == NULL || module_fcn_entry)
>    rc = gfc_get_symbol (name, NULL, result);
>  else
>    rc = gfc_get_symbol (name, gfc_current_ns->parent, result);

is also strictly equivalent to

>   if (module_fcn_entry)
>    rc = gfc_get_symbol (name, NULL, result);
>  else
>    rc = gfc_get_symbol (name, gfc_current_ns->parent, result);

The strict equivalence does not arise from the Fortran standard or
assumptions made elsewhere, it would be true of any C code of the form

>  if (a == NULL)
>    foo (NULL);
>  else
>    foo (a);

or

>  if (a == NULL || b)
>    foo (NULL);
>  else
>    foo (a);


Regards,
FX