http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54574
Bug #: 54574
Summary: G++ accepts parameters with wrong types in parent
constructor
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: car...@google.com
When compiling the following source code,
class C
{
public:
C (int* Items[]);
};
template<class T> class A : public C
{
public:
A (int Items[])
: C (Items) { // C is called with wrong parameter type, expects
int**
};
};
int i[5];
A<int> yyy(i);
Trunk g++ silently accepts it. While clang produces following error message:
cursesm.ii:11:7: error: no matching constructor for initialization of 'C'
: C (Items) {
^ ~~~~~
cursesm.ii:4:3: note: candidate constructor not viable: no known conversion
from 'int *' to 'int **' for 1st argument; take the address of the argument
with &
C (int* Items[]);
^
cursesm.ii:1:7: note: candidate constructor (the implicit copy constructor) not
viable: no known conversion from 'int *' to 'const C' for 1st argument;
class C
^
cursesm.ii:10:3: error: constructor for 'A<int>' must explicitly initialize the
base class 'C' which does not have a default constructor
A (int Items[])
^
cursesm.ii:16:8: note: in instantiation of member function 'A<int>::A'
requested here
A<int> yyy(i);
^
cursesm.ii:1:7: note: 'C' declared here
class C
^
It also impacts branches 4.6 and 4.7.
