Fixed void* vs int* overload issue (PR C++/10343).

2010-10-14  Sami Wagiaalla  <swagiaal@redhat.com>

	* gdbtypes.h: Create BASE_PTR_CONVERSION_BADNESS.
	* gdbtypes.c (rank_one_type): Move type comparison code out of here
	to...
	(types_equal): ...here. And changed it as follows:
	Outside of typedefs type must be of the same TYPE_CODE.
	When compairing two pointers or references they are equal if their
	targets are equal.
	Correct pointer conversions.

2010-10-14  Sami Wagiaalla  <swagiaal@redhat.com>

	* gdb.cp/converts.cc: New test program.
	* gdb.cp/converts.exp: New test.
	* gdb.cp/overload.exp: Added test for void* vs int*.
	* gdb.cp/overload.exp: Ditto.
	* gdb.cp/oranking.exp: Removed related kfail.

1 files changed, 53 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.cp/converts.cc b/gdb/testsuite/gdb.cp/converts.cc
new file mode 100644
index 0000000..b5e7bde
--- /dev/null
+++ b/gdb/testsuite/gdb.cp/converts.cc
@@ -0,0 +1,53 @@
+class A {};
+class B : public A {};
+
+typedef A TA1;
+typedef A TA2;
+typedef TA2 TA3;
+
+int foo0_1 (TA1)  { return 1; }
+int foo0_2 (TA3)  { return 2; }
+int foo0_3 (A***) { return 3; }
+
+int foo1_1 (char *) {return 11;}
+int foo1_2 (char[]) {return 12;}
+int foo1_3 (int*)   {return 13;}
+int foo1_4 (A*)     {return 14;}
+int foo1_5 (void*)  {return 15;}
+int foo1_6 (void**) {return 15;}
+
+int foo2_1 (char**  )  {return 21;}
+int foo2_2 (char[][1]) {return 22;}
+int foo2_3 (char *[])  {return 23;}
+int foo2_4 (int  *[])  {return 24;}
+
+int main()
+{
+
+  TA2 ta;      // typedef to..
+  foo0_1 (ta); // ..another typedef
+  foo0_2 (ta); // ..typedef of a typedef
+
+  B*** bppp;    // Pointer-to-pointer-to-pointer-to-derived..
+//foo0_3(bppp); // Pointer-to-pointer-to-pointer base.
+  foo0_3((A***)bppp); // to ensure that the function is emitted.
+
+  char *a;             // pointer to..
+  B *bp;
+  foo1_1 (a);          // ..pointer
+  foo1_2 (a);          // ..array
+  foo1_3 ((int*)a);    // ..pointer of wrong type
+  foo1_3 ((int*)bp);   // ..pointer of wrong type
+  foo1_4 (bp);         // ..ancestor pointer
+  foo1_5 (bp);         // ..void pointer
+  foo1_6 ((void**)bp); // ..void pointer
+
+  char **b;          // pointer pointer to..
+  char ba[1][1];
+  foo1_5 (b);        // ..void pointer
+  foo2_1 (b);        // ..pointer pointer
+  foo2_2 (ba);       // ..array of arrays
+  foo2_3 (b);        // ..array of pointers
+  foo2_4 ((int**)b); // ..array of wrong pointers
+  return 0;          // end of main
+}