MISRA.CAST.FUNC_PTR.CPP

Cast converts function pointer to other pointer type.

MISRA-C++ Rule 5-2-6 (required): A cast shall not convert a pointer to a function to any other pointer type, including a pointer to function type.

[Undefined 5.2.10(6), Unspecified 5.2.10(6)]

Rationale

Conversion of a function pointer to a non-function pointer type causes undefined behaviour. Undefined behaviour may arise if a function call is made using a pointer that is the result of a function pointer conversion.

Example

void f ( int32_t )
{
   reinterpret_cast< void (*)( ) >( &f );   // Non-compliant
   reinterpret_cast< void * >( &f );        // Non-compliant
}