Path: utzoo!telly!ddsw1!mcdchg!rutgers!mailrus!tut.cis.ohio-state.edu!MCC.COM!rfg
From: rfg@MCC.COM (Ron Guilmette)
Newsgroups: gnu.g++.bug
Subject: BUG(s) in G++ 1.32 - inconsistant errors/warnings - missing constructor
Message-ID: <8901252028.AA10350@riunite.aca.mcc.com>
Date: 25 Jan 89 20:28:40 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 56

The following three files show that G++ (1.32.0) handles the
case of a call to an un-declared constructor differently in
different contexts.  If the call to the undeclared constructor
occurs for a static or an auto object, then warnings are issued.
If however the constructor call is made for a heap (new) object
then an error is issued.

I believe that all three cases demand that an error be issued.
After all, you are supposed to declare things before you use
them right?  At the very least, all three cases should be handled
the same way.


====================================================================
/*
Description - check that a constructor with a given parameter profile
		cannot be called for a global (static) object unless
		the constructor has already been explicitly declared.
*/

struct node {
  int f1;
};

node global_node(7);	// ERROR: node(int) not declared
====================================================================
/*
Description - check that a constructor with a given parameter profile
		cannot be called for a local (auto) object unless the
		constructor has already been explicitly declared.
*/

struct node {
  int f1;
};

main ()
{
	node local_node(9);	// ERROR: node(int) not declared
}
=====================================================================
/*
Description - check that a constructor with a given parameter profile
		cannot be called for a heap (new) object unless the
		constructor has already been explicitly declared.
*/

struct node {
  int f1;
};

main ()
{
	node& node_ref = new node(9);	// ERROR: node(int) not declared
}
=========================================================================