Opened 14 months ago

#200 new defect

Polymorphic Function Pointers not handled by Constructor

Reported by: ajbeach Owned by:
Priority: major Component: cfa-cc
Version: 1.0 Keywords:
Cc:

Description

There seems to be an issue with function pointers in constructors if the argument or return type is a polymorphic type with an otype type variable (error disappears with dtype). A pointer to the polymorphic type seems to work just fine.

Code:

forall(otype T) struct tag {};
forall(otype U)
struct object {
    void (*function1)(tag(U));
    tag(U) (*function2)();
};

Error:

bug.cfa: In function '_X12_constructorQ1_0_0_4__X16_operator_assignFBD0_BD0BD0__X12_constructorFv_BD0__X12_constructorFv_BD0BD0__X11_destructorFv_BD0__Fv_S6object_BD0_Fv_S3tag_BD0___autogen___1':
bug.cfa:24:259: warning: assignment to 'void (*)(long unsigned int,  long unsigned int,  void *)' from incompatible pointer type 'void (*)(void *)' [-Wincompatible-pointer-types]
   24 |  void (*function1)(tag(U));
      |

bug.cfa: In function '_X12_constructorQ1_0_0_4__X16_operator_assignFBD0_BD0BD0__X12_constructorFv_BD0__X12_constructorFv_BD0BD0__X11_destructorFv_BD0__Fv_S6object_BD0_Fv_S3tag_BD0__FS3tag_BD0____autogen___1':
bug.cfa:24:259: warning: assignment to 'void (*)(long unsigned int,  long unsigned int,  void *)' from incompatible pointer type 'void (*)(void *)' [-Wincompatible-pointer-types]
   24 |  void (*function1)(tag(U));
      |

Also I was not able to get this error message to appear anywhere but the constructor. I tried several types and although it is not an exhaustive search it didn't turn up anything.

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