MISRA.THROW.PTR

Exception object is a pointer.

MISRA-C++ Rule 15-0-2 (advisory): An exception object should not have pointer type.

Rationale

If an exception object of pointer type is thrown and that pointer refers to a dynamically created object, then it may be unclear which function is responsible for destroying it, and when. This ambiguity does not exist if the object is caught by value or reference.

Example

class A
{
   // Implementation
};
void fn ( int16_t i )
{
   static A a1;
          A * a2 = new A;
   if ( i > 10 )
   {
      throw ( &a1 ); // Non-compliant — pointer type thrown
   }
   else
   {
      throw ( a2 );  // Non-compliant — pointer type thrown
   }
}

External Guidance

• STIG-ID:APP3120 Application has error handling vulnerabilities