Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1464 insertions, 0 deletions

diff --git a/src/libs/xpcom18a4/xpcom/reflect/xptcall/tests/TestXPTCInvoke.cpp b/src/libs/xpcom18a4/xpcom/reflect/xptcall/tests/TestXPTCInvoke.cpp
new file mode 100644
index 00000000..79e4bc08
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/reflect/xptcall/tests/TestXPTCInvoke.cpp
@@ -0,0 +1,1464 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Pierre Phaneuf <pp@ludusdesign.com>
+ *   Stuart Parmenter <pavlov@netscape.com>
+ *   Chris Seawood <cls@seawood.org>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/* Invoke tests xptcall. */
+
+#include <stdio.h>
+#include "xptcall.h"
+#include "prlong.h"
+#include "prinrval.h"
+#include "nsMemory.h"
+
+// forward declration
+static int DoMultipleInheritenceTest(int rcExit);
+static int DoMultipleInheritenceTest2(int rcExit);
+static void DoSpeedTest();
+
+
+#include <iprt/string.h>
+
+static char  g_szDirect[16384];
+static char  g_szInvoke[16384];
+static char *g_pszBuffer = NULL;
+static void bufprintf(const char *pszFormat, ...)
+{
+    va_list va;
+    va_start(va, pszFormat);
+    vprintf(pszFormat, va);
+    va_end(va);
+    if (g_pszBuffer)
+    {
+        size_t  cchBuf = strlen(g_pszBuffer);
+        ssize_t cbLeft = (ssize_t)sizeof(g_szDirect) - (ssize_t)cchBuf;
+        if (cbLeft > 0)
+        {
+            va_list va;
+            va_start(va, pszFormat);
+            vsnprintf(&g_pszBuffer[cchBuf], (size_t)cbLeft, pszFormat, va);
+            va_end(va);
+        }
+    }
+}
+
+static void setbuffer(bool fDirect)
+{
+    g_pszBuffer = fDirect ? g_szDirect : g_szInvoke;
+    *g_pszBuffer = '\0';
+}
+
+static int comparebuffers(int rcExit)
+{
+    if (strcmp(g_szDirect, g_szInvoke) == 0)
+        return rcExit;
+    size_t offLine = 0;
+    unsigned iLine   = 1;
+    for (size_t off = 0; ; off++)
+    {
+        char chDirect = g_szDirect[off];
+        char chInvoke = g_szInvoke[off];
+        if (chDirect == chInvoke)
+        {
+            if (!chDirect)
+                return rcExit;
+            if (chDirect == '\n')
+            {
+                offLine = off + 1;
+                iLine++;
+            }
+        }
+        else
+        {
+            size_t cchDirectLine = RTStrOffCharOrTerm(&g_szDirect[offLine], '\n');
+            size_t cchInvokeLine = RTStrOffCharOrTerm(&g_szInvoke[offLine], '\n');
+            printf("direct and invoke runs differs on line %u!\n", iLine);
+            printf("direct: %*.*s\n", (int)cchDirectLine, (int)cchDirectLine, &g_szDirect[offLine]);
+            printf("invoke: %*.*s\n", (int)cchInvokeLine, (int)cchInvokeLine, &g_szInvoke[offLine]);
+
+            return 1;
+        }
+
+    }
+    printf("direct and invoke runs differs!\n");
+    return 1;
+}
+
+
+// {AAC1FB90-E099-11d2-984E-006008962422}
+#define INVOKETESTTARGET_IID \
+{ 0xaac1fb90, 0xe099, 0x11d2, \
+  { 0x98, 0x4e, 0x0, 0x60, 0x8, 0x96, 0x24, 0x22 } }
+
+
+class InvokeTestTargetInterface : public nsISupports
+{
+public:
+    NS_DEFINE_STATIC_IID_ACCESSOR(INVOKETESTTARGET_IID)
+    NS_IMETHOD AddTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval) = 0;
+    NS_IMETHOD MultTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval) = 0;
+    NS_IMETHOD AddTwoLLs(PRInt64 p1, PRInt64 p2, PRInt64* retval) = 0;
+    NS_IMETHOD MultTwoLLs(PRInt64 p1, PRInt64 p2, PRInt64* retval) = 0;
+
+    NS_IMETHOD AddManyInts(PRInt32 p1, PRInt32 p2, PRInt32 p3, PRInt32 p4,
+                           PRInt32 p5, PRInt32 p6, PRInt32 p7, PRInt32 p8,
+                           PRInt32 p9, PRInt32 p10, PRInt32* retval) = 0;
+
+    NS_IMETHOD AddTwoFloats(float p1, float p2, float* retval) = 0;
+
+    NS_IMETHOD AddManyDoubles(double p1, double p2, double p3, double p4,
+                              double p5, double p6, double p7, double p8,
+                              double p9, double p10, double* retval) = 0;
+
+    NS_IMETHOD AddManyFloats(float p1, float p2, float p3, float p4,
+                             float p5, float p6, float p7, float p8,
+                             float p9, float p10, float* retval) = 0;
+
+    NS_IMETHOD AddManyManyFloats(float p1, float p2, float p3, float p4,
+                                 float p5, float p6, float p7, float p8,
+                                 float p9, float p10, float p11, float p12, 
+                                 float p13, float p14, float p15, float p16, 
+                                 float p17, float p18, float p19, float p20, 
+                                 float *retval) = 0;
+
+    NS_IMETHOD AddMixedInts(PRInt64 p1, PRInt32 p2, PRInt64 p3, PRInt32 p4,
+                            PRInt32 p5, PRInt64 p6, PRInt32 p7, PRInt32 p8,
+                            PRInt64 p9, PRInt32 p10, PRInt64* retval) = 0;
+
+    NS_IMETHOD AddMixedInts2(PRInt32 p1, PRInt64 p2, PRInt32 p3, PRInt64 p4,
+                             PRInt64 p5, PRInt32 p6, PRInt64 p7, PRInt64 p8,
+                             PRInt32 p9, PRInt64 p10, PRInt64* retval) = 0;
+
+    NS_IMETHOD AddMixedFloats(float p1, float p2, double p3, double p4,
+                              float p5, float p6, double p7, double p8,
+                              float p9, double p10, float p11,
+                              double *retval) = 0;
+
+    NS_IMETHOD PassTwoStrings(const char* s1, const char* s2, char** retval) = 0;
+
+};
+
+class InvokeTestTarget : public InvokeTestTargetInterface
+{
+public:
+    NS_DECL_ISUPPORTS
+    NS_IMETHOD AddTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval);
+    NS_IMETHOD MultTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval);
+    NS_IMETHOD AddTwoLLs(PRInt64 p1, PRInt64 p2, PRInt64* retval);
+    NS_IMETHOD MultTwoLLs(PRInt64 p1, PRInt64 p2, PRInt64* retval);
+
+    NS_IMETHOD AddManyInts(PRInt32 p1, PRInt32 p2, PRInt32 p3, PRInt32 p4,
+                           PRInt32 p5, PRInt32 p6, PRInt32 p7, PRInt32 p8,
+                           PRInt32 p9, PRInt32 p10, PRInt32* retval);
+
+    NS_IMETHOD AddTwoFloats(float p1, float p2, float* retval);
+
+    NS_IMETHOD AddManyDoubles(double p1, double p2, double p3, double p4,
+                              double p5, double p6, double p7, double p8,
+                              double p9, double p10, double* retval);
+
+    NS_IMETHOD AddManyFloats(float p1, float p2, float p3, float p4,
+                             float p5, float p6, float p7, float p8,
+                             float p9, float p10, float* retval);
+
+    NS_IMETHOD AddMixedInts(PRInt64 p1, PRInt32 p2, PRInt64 p3, PRInt32 p4,
+			    PRInt32 p5, PRInt64 p6, PRInt32 p7, PRInt32 p8,
+			    PRInt64 p9, PRInt32 p10, PRInt64* retval);
+
+    NS_IMETHOD AddMixedInts2(PRInt32 p1, PRInt64 p2, PRInt32 p3, PRInt64 p4,
+			     PRInt64 p5, PRInt32 p6, PRInt64 p7, PRInt64 p8,
+			     PRInt32 p9, PRInt64 p10, PRInt64* retval);
+
+    NS_IMETHOD AddMixedFloats(float p1, float p2, double p3, double p4,
+                              float p5, float p6, double p7, double p8,
+                              float p9, double p10, float p11,
+                              double *retval);
+
+    NS_IMETHOD AddManyManyFloats(float p1, float p2, float p3, float p4,
+                                 float p5, float p6, float p7, float p8,
+                                 float p9, float p10, float p11, float p12, 
+                                 float p13, float p14, float p15, float p16, 
+                                 float p17, float p18, float p19, float p20, 
+                                 float *retval);
+
+    NS_IMETHOD PassTwoStrings(const char* s1, const char* s2, char** retval);
+
+    InvokeTestTarget();
+};
+
+NS_IMPL_ISUPPORTS1(InvokeTestTarget, InvokeTestTargetInterface)
+
+InvokeTestTarget::InvokeTestTarget()
+{
+    NS_ADDREF_THIS();
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval)
+{
+    *retval = p1 + p2;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::MultTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval)
+{
+    *retval = p1 * p2;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddTwoLLs(PRInt64 p1, PRInt64 p2, PRInt64* retval)
+{
+    LL_ADD(*retval, p1, p2);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::MultTwoLLs(PRInt64 p1, PRInt64 p2, PRInt64* retval)
+{
+    LL_MUL(*retval, p1, p2);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddManyInts(PRInt32 p1, PRInt32 p2, PRInt32 p3, PRInt32 p4,
+                              PRInt32 p5, PRInt32 p6, PRInt32 p7, PRInt32 p8,
+                              PRInt32 p9, PRInt32 p10, PRInt32* retval)
+{
+#ifdef DEBUG_TESTINVOKE
+    printf("%d, %d, %d, %d, %d, %d, %d, %d, %d, %d\n", 
+           p1, p2, p3, p4, p5, p6, p7, p8, p9, p10);
+#endif
+    *retval = p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddTwoFloats(float p1, float p2, float *retval)
+{
+#ifdef DEBUG_TESTINVOKE
+    printf("%f, %f\n", p1, p2);
+#endif
+    *retval = p1 + p2;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddManyDoubles(double p1, double p2, double p3, double p4,
+                                 double p5, double p6, double p7, double p8,
+                                 double p9, double p10, double* retval)
+{
+#ifdef DEBUG_TESTINVOKE
+    printf("%lf, %lf, %lf, %lf, %lf, %lf, %lf, %lf, %lf, %lf\n", 
+           p1, p2, p3, p4, p5, p6, p7, p8, p9, p10);
+#endif
+    *retval = p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddManyFloats(float p1, float p2, float p3, float p4,
+                                float p5, float p6, float p7, float p8,
+                                float p9, float p10, float* retval)
+{
+#ifdef DEBUG_TESTINVOKE
+    printf("%f, %f, %f, %f, %f, %f, %f, %f, %f, %f\n", 
+           p1, p2, p3, p4, p5, p6, p7, p8, p9, p10);
+#endif
+    *retval = p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddMixedFloats(float p1, float p2, double p3, double p4,
+                                 float p5, float p6, double p7, double p8,
+                                 float p9, double p10, float p11,
+                                 double *retval)
+{
+#ifdef DEBUG_TESTINVOKE
+    printf("%f, %f, %lf, %lf, %f, %f, %lf, %lf, %f, %lf, %f\n", 
+           p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11);
+#endif
+    *retval = p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10 + p11;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddManyManyFloats(float p1, float p2, float p3, float p4,
+                                    float p5, float p6, float p7, float p8,
+                                    float p9, float p10, float p11, float p12, 
+                                    float p13, float p14, float p15, float p16, 
+                                    float p17, float p18, float p19, float p20,
+                                    float *retval)
+{
+#ifdef DEBUG_TESTINVOKE
+    printf("%f, %f, %f, %f, %f, %f, %f, %f, %f, %f, "
+           "%f, %f, %f, %f, %f, %f, %f, %f, %f, %f\n", 
+           p1, p2, p3, p4, p5, p6, p7, p8, p9, p10,
+           p11, p12, p13, p14, p15, p16, p17, p18, p19, p20);
+#endif
+    *retval = p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10 +
+        p11 + p12 + p13 + p14 + p15 + p16 + p17 + p18 + p19 + p20;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddMixedInts(PRInt64 p1, PRInt32 p2, PRInt64 p3, PRInt32 p4,
+			       PRInt32 p5, PRInt64 p6, PRInt32 p7, PRInt32 p8,
+			       PRInt64 p9, PRInt32 p10, PRInt64* retval)
+{
+    *retval = p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::AddMixedInts2(PRInt32 p1, PRInt64 p2, PRInt32 p3, PRInt64 p4,
+				PRInt64 p5, PRInt32 p6, PRInt64 p7, PRInt64 p8,
+				PRInt32 p9, PRInt64 p10, PRInt64* retval)
+{
+    *retval = p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+InvokeTestTarget::PassTwoStrings(const char* s1, const char* s2, char** retval)
+{
+    const char milk[] = "milk";
+    char *ret = (char*)nsMemory::Alloc(sizeof(milk));
+    if (!ret)
+      return NS_ERROR_OUT_OF_MEMORY;
+    strncpy(ret, milk, sizeof(milk));
+    printf("\t%s %s", s1, s2);
+    *retval = ret;
+    return NS_OK;
+}
+
+int main()
+{
+    InvokeTestTarget *test = new InvokeTestTarget();
+
+    /* here we make the global 'check for alloc failure' checker happy */
+    if(!test)
+        return 1;
+
+    PRInt32 out, tmp32 = 0;
+    PRInt64 out64;
+    printf("calling direct:\n");
+    setbuffer(true);
+    if(NS_SUCCEEDED(test->AddTwoInts(1,1,&out)))
+        bufprintf("\t1 + 1 = %d\n", out);
+    else
+        bufprintf("\tFAILED");
+    PRInt64 one, two;
+    LL_I2L(one, 1);
+    LL_I2L(two, 2);
+    if(NS_SUCCEEDED(test->AddTwoLLs(one,one,&out64)))
+    {
+        LL_L2I(tmp32, out64);
+        bufprintf("\t1L + 1L = %d\n", (int)tmp32);
+    }
+    else
+        bufprintf("\tFAILED");
+    if(NS_SUCCEEDED(test->MultTwoInts(2,2,&out)))
+        bufprintf("\t2 * 2 = %d\n", out);
+    else
+        bufprintf("\tFAILED");
+    if(NS_SUCCEEDED(test->MultTwoLLs(two,two,&out64)))
+    {
+        LL_L2I(tmp32, out64);
+        bufprintf("\t2L * 2L = %d\n", (int)tmp32);
+    }
+    else
+        bufprintf("\tFAILED");
+
+    double outD;
+    float outF;
+    PRInt32 outI;
+    char *outS;
+
+    if(NS_SUCCEEDED(test->AddManyInts(1,2,3,4,5,6,7,8,9,10,&outI)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %d\n", outI);
+    else
+        bufprintf("\tFAILED");
+
+    if(NS_SUCCEEDED(test->AddTwoFloats(1,2,&outF)))
+        bufprintf("\t1 + 2 = %ff\n", (double)outF);
+    else
+        bufprintf("\tFAILED");
+
+    if(NS_SUCCEEDED(test->AddManyDoubles(1,2,3,4,5,6,7,8,9,10,&outD)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %f\n", outD);
+    else
+        bufprintf("\tFAILED");
+
+    if(NS_SUCCEEDED(test->AddManyFloats(1,2,3,4,5,6,7,8,9,10,&outF)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %ff\n", (double)outF);
+    else
+        bufprintf("\tFAILED");
+
+    if(NS_SUCCEEDED(test->AddManyManyFloats(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,&outF)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = %ff\n", (double)outF);
+    else
+        bufprintf("\tFAILED");
+
+    if(NS_SUCCEEDED(test->AddMixedInts(1,2,3,4,5,6,7,8,9,10,&out64)))
+     {
+         LL_L2I(tmp32, out64);
+         bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %d\n", (int)tmp32);
+     }
+     else
+         bufprintf("\tFAILED");
+ 
+     if(NS_SUCCEEDED(test->AddMixedInts2(1,2,3,4,5,6,7,8,9,10,&out64)))
+     {
+          LL_L2I(tmp32, out64);
+         bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %d\n", (int)tmp32);
+     }
+     else
+         bufprintf("\tFAILED");
+
+     if(NS_SUCCEEDED(test->AddMixedFloats(1,2,3,4,5,6,7,8,9,10,11,&outD)))
+         bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 = %f\n", (double)outD);
+     else
+         bufprintf("\tFAILED");
+
+     if (NS_SUCCEEDED(test->PassTwoStrings("moo","cow",&outS))) {
+       bufprintf(" = %s\n", outS);
+        nsMemory::Free(outS);
+      } else
+        bufprintf("\tFAILED");
+
+    printf("calling via invoke:\n");
+    setbuffer(false);
+
+    nsXPTCVariant var[21];
+
+    var[0].val.i32 = 1;
+    var[0].type = nsXPTType::T_I32;
+    var[0].flags = 0;
+
+    var[1].val.i32 = 1;
+    var[1].type = nsXPTType::T_I32;
+    var[1].flags = 0;
+
+    var[2].val.i32 = 0;
+    var[2].type = nsXPTType::T_I32;
+    var[2].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[2].ptr = &var[2].val.i32;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 3, 3, var)))
+        bufprintf("\t1 + 1 = %d\n", var[2].val.i32);
+    else
+        bufprintf("\tFAILED");
+
+    LL_I2L(var[0].val.i64, 1);
+    var[0].type = nsXPTType::T_I64;
+    var[0].flags = 0;
+
+    LL_I2L(var[1].val.i64, 1);
+    var[1].type = nsXPTType::T_I64;
+    var[1].flags = 0;
+
+    LL_I2L(var[2].val.i64, 0);
+    var[2].type = nsXPTType::T_I64;
+    var[2].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[2].ptr = &var[2].val.i64;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 5, 3, var)))
+        bufprintf("\t1L + 1L = %d\n", (int)var[2].val.i64);
+    else
+        bufprintf("\tFAILED");
+
+    var[0].val.i32 = 2;
+    var[0].type = nsXPTType::T_I32;
+    var[0].flags = 0;
+
+    var[1].val.i32 = 2;
+    var[1].type = nsXPTType::T_I32;
+    var[1].flags = 0;
+
+    var[2].val.i32 = 0;
+    var[2].type = nsXPTType::T_I32;
+    var[2].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[2].ptr = &var[2].val.i32;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 4, 3, var)))
+        bufprintf("\t2 * 2 = %d\n", var[2].val.i32);
+    else
+        bufprintf("\tFAILED");
+
+    LL_I2L(var[0].val.i64,2);
+    var[0].type = nsXPTType::T_I64;
+    var[0].flags = 0;
+
+    LL_I2L(var[1].val.i64,2);
+    var[1].type = nsXPTType::T_I64;
+    var[1].flags = 0;
+
+    LL_I2L(var[2].val.i64,0);
+    var[2].type = nsXPTType::T_I64;
+    var[2].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[2].ptr = &var[2].val.i64;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 6, 3, var)))
+        bufprintf("\t2L * 2L = %d\n", (int)var[2].val.i64);
+    else
+        bufprintf("\tFAILED");
+
+    var[0].val.i32 = 1;
+    var[0].type = nsXPTType::T_I32;
+    var[0].flags = 0;
+
+    var[1].val.i32 = 2;
+    var[1].type = nsXPTType::T_I32;
+    var[1].flags = 0;
+
+    var[2].val.i32 = 3;
+    var[2].type = nsXPTType::T_I32;
+    var[2].flags = 0;
+
+    var[3].val.i32 = 4;
+    var[3].type = nsXPTType::T_I32;
+    var[3].flags = 0;
+
+    var[4].val.i32 = 5;
+    var[4].type = nsXPTType::T_I32;
+    var[4].flags = 0;
+
+    var[5].val.i32 = 6;
+    var[5].type = nsXPTType::T_I32;
+    var[5].flags = 0;
+
+    var[6].val.i32 = 7;
+    var[6].type = nsXPTType::T_I32;
+    var[6].flags = 0;
+
+    var[7].val.i32 = 8;
+    var[7].type = nsXPTType::T_I32;
+    var[7].flags = 0;
+
+    var[8].val.i32 = 9;
+    var[8].type = nsXPTType::T_I32;
+    var[8].flags = 0;
+
+    var[9].val.i32 = 10;
+    var[9].type = nsXPTType::T_I32;
+    var[9].flags = 0;
+
+    var[10].val.i32 = 0;
+    var[10].type = nsXPTType::T_I32;
+    var[10].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[10].ptr = &var[10].val.i32;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 7, 11, var)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %d\n",
+                var[10].val.i32);
+
+    var[0].val.f = 1.0f;
+    var[0].type = nsXPTType::T_FLOAT;
+    var[0].flags = 0;
+
+    var[1].val.f = 2.0f;
+    var[1].type = nsXPTType::T_FLOAT;
+    var[1].flags = 0;
+
+    var[2].val.f = 0.0f;
+    var[2].type = nsXPTType::T_FLOAT;
+    var[2].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[2].ptr = &var[2].val.f;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 8, 3, var)))
+        bufprintf("\t1 + 2 = %ff\n",
+                (double) var[2].val.f);
+
+
+    var[0].val.d = 1.0;
+    var[0].type = nsXPTType::T_DOUBLE;
+    var[0].flags = 0;
+
+    var[1].val.d = 2.0;
+    var[1].type = nsXPTType::T_DOUBLE;
+    var[1].flags = 0;
+
+    var[2].val.d = 3.0;
+    var[2].type = nsXPTType::T_DOUBLE;
+    var[2].flags = 0;
+
+    var[3].val.d = 4.0;
+    var[3].type = nsXPTType::T_DOUBLE;
+    var[3].flags = 0;
+
+    var[4].val.d = 5.0;
+    var[4].type = nsXPTType::T_DOUBLE;
+    var[4].flags = 0;
+
+    var[5].val.d = 6.0;
+    var[5].type = nsXPTType::T_DOUBLE;
+    var[5].flags = 0;
+
+    var[6].val.d = 7.0;
+    var[6].type = nsXPTType::T_DOUBLE;
+    var[6].flags = 0;
+
+    var[7].val.d = 8.0;
+    var[7].type = nsXPTType::T_DOUBLE;
+    var[7].flags = 0;
+
+    var[8].val.d = 9.0;
+    var[8].type = nsXPTType::T_DOUBLE;
+    var[8].flags = 0;
+
+    var[9].val.d = 10.0;
+    var[9].type = nsXPTType::T_DOUBLE;
+    var[9].flags = 0;
+
+    var[10].val.d = 0.0;
+    var[10].type = nsXPTType::T_DOUBLE;
+    var[10].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[10].ptr = &var[10].val.d;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 9, 11, var)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %f\n",
+                var[10].val.d);
+    else
+        bufprintf("\tFAILED");
+
+    var[0].val.f = 1.0f;
+    var[0].type = nsXPTType::T_FLOAT;
+    var[0].flags = 0;
+
+    var[1].val.f = 2.0f;
+    var[1].type = nsXPTType::T_FLOAT;
+    var[1].flags = 0;
+
+    var[2].val.f = 3.0f;
+    var[2].type = nsXPTType::T_FLOAT;
+    var[2].flags = 0;
+
+    var[3].val.f = 4.0f;
+    var[3].type = nsXPTType::T_FLOAT;
+    var[3].flags = 0;
+
+    var[4].val.f = 5.0f;
+    var[4].type = nsXPTType::T_FLOAT;
+    var[4].flags = 0;
+
+    var[5].val.f = 6.0f;
+    var[5].type = nsXPTType::T_FLOAT;
+    var[5].flags = 0;
+
+    var[6].val.f = 7.0f;
+    var[6].type = nsXPTType::T_FLOAT;
+    var[6].flags = 0;
+
+    var[7].val.f = 8.0f;
+    var[7].type = nsXPTType::T_FLOAT;
+    var[7].flags = 0;
+
+    var[8].val.f = 9.0f;
+    var[8].type = nsXPTType::T_FLOAT;
+    var[8].flags = 0;
+
+    var[9].val.f = 10.0f;
+    var[9].type = nsXPTType::T_FLOAT;
+    var[9].flags = 0;
+
+    var[10].val.f = 0.0f;
+    var[10].type = nsXPTType::T_FLOAT;
+    var[10].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[10].ptr = &var[10].val.f;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 10, 11, var)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %ff\n",
+                (double) var[10].val.f);
+    else
+        bufprintf("\tFAILED");
+
+    var[0].val.f = 1.0f;
+    var[0].type = nsXPTType::T_FLOAT;
+    var[0].flags = 0;
+
+    var[1].val.f = 2.0f;
+    var[1].type = nsXPTType::T_FLOAT;
+    var[1].flags = 0;
+
+    var[2].val.f = 3.0f;
+    var[2].type = nsXPTType::T_FLOAT;
+    var[2].flags = 0;
+
+    var[3].val.f = 4.0f;
+    var[3].type = nsXPTType::T_FLOAT;
+    var[3].flags = 0;
+
+    var[4].val.f = 5.0f;
+    var[4].type = nsXPTType::T_FLOAT;
+    var[4].flags = 0;
+
+    var[5].val.f = 6.0f;
+    var[5].type = nsXPTType::T_FLOAT;
+    var[5].flags = 0;
+
+    var[6].val.f = 7.0f;
+    var[6].type = nsXPTType::T_FLOAT;
+    var[6].flags = 0;
+
+    var[7].val.f = 8.0f;
+    var[7].type = nsXPTType::T_FLOAT;
+    var[7].flags = 0;
+
+    var[8].val.f = 9.0f;
+    var[8].type = nsXPTType::T_FLOAT;
+    var[8].flags = 0;
+
+    var[9].val.f = 10.0f;
+    var[9].type = nsXPTType::T_FLOAT;
+    var[9].flags = 0;
+
+    var[10].val.f = 11.0f;
+    var[10].type = nsXPTType::T_FLOAT;
+    var[10].flags = 0;
+
+    var[11].val.f = 12.0f;
+    var[11].type = nsXPTType::T_FLOAT;
+    var[11].flags = 0;
+
+    var[12].val.f = 13.0f;
+    var[12].type = nsXPTType::T_FLOAT;
+    var[12].flags = 0;
+
+    var[13].val.f = 14.0f;
+    var[13].type = nsXPTType::T_FLOAT;
+    var[13].flags = 0;
+
+    var[14].val.f = 15.0f;
+    var[14].type = nsXPTType::T_FLOAT;
+    var[14].flags = 0;
+
+    var[15].val.f = 16.0f;
+    var[15].type = nsXPTType::T_FLOAT;
+    var[15].flags = 0;
+
+    var[16].val.f = 17.0f;
+    var[16].type = nsXPTType::T_FLOAT;
+    var[16].flags = 0;
+
+    var[17].val.f = 18.0f;
+    var[17].type = nsXPTType::T_FLOAT;
+    var[17].flags = 0;
+
+    var[18].val.f = 19.0f;
+    var[18].type = nsXPTType::T_FLOAT;
+    var[18].flags = 0;
+
+    var[19].val.f = 20.0f;
+    var[19].type = nsXPTType::T_FLOAT;
+    var[19].flags = 0;
+
+    var[20].val.f = 0.0f;
+    var[20].type = nsXPTType::T_FLOAT;
+    var[20].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[20].ptr = &var[20].val.f;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 11, 21, var)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = %ff\n",
+                (double) var[20].val.f);
+
+    var[0].val.i64 = 1;
+    var[0].type = nsXPTType::T_I64;
+    var[0].flags = 0;
+
+    var[1].val.i32 = 2;
+    var[1].type = nsXPTType::T_I32;
+    var[1].flags = 0;
+
+    var[2].val.i64 = 3;
+    var[2].type = nsXPTType::T_I64;
+    var[2].flags = 0;
+
+    var[3].val.i32 = 4;
+    var[3].type = nsXPTType::T_I32;
+    var[3].flags = 0;
+
+    var[4].val.i32 = 5;
+    var[4].type = nsXPTType::T_I32;
+    var[4].flags = 0;
+
+    var[5].val.i64 = 6;
+    var[5].type = nsXPTType::T_I64;
+    var[5].flags = 0;
+
+    var[6].val.i32 = 7;
+    var[6].type = nsXPTType::T_I32;
+    var[6].flags = 0;
+
+    var[7].val.i32 = 8;
+    var[7].type = nsXPTType::T_I32;
+    var[7].flags = 0;
+
+    var[8].val.i64 = 9;
+    var[8].type = nsXPTType::T_I64;
+    var[8].flags = 0;
+
+    var[9].val.i32 = 10;
+    var[9].type = nsXPTType::T_I32;
+    var[9].flags = 0;
+
+    var[10].val.i64 = 0;
+    var[10].type = nsXPTType::T_I64;
+    var[10].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[10].ptr = &var[10].val.i64;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 12, 11, var)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %d\n",
+	       (int)var[10].val.i64);
+    else
+        bufprintf("\tFAILED");
+
+    var[0].val.i32 = 1;
+    var[0].type = nsXPTType::T_I32;
+    var[0].flags = 0;
+
+    var[1].val.i64 = 2;
+    var[1].type = nsXPTType::T_I64;
+    var[1].flags = 0;
+
+    var[2].val.i32 = 3;
+    var[2].type = nsXPTType::T_I32;
+    var[2].flags = 0;
+
+    var[3].val.i64 = 4;
+    var[3].type = nsXPTType::T_I64;
+    var[3].flags = 0;
+
+    var[4].val.i64 = 5;
+    var[4].type = nsXPTType::T_I64;
+    var[4].flags = 0;
+
+    var[5].val.i32 = 6;
+    var[5].type = nsXPTType::T_I32;
+    var[5].flags = 0;
+
+    var[6].val.i64 = 7;
+    var[6].type = nsXPTType::T_I64;
+    var[6].flags = 0;
+
+    var[7].val.i64 = 8;
+    var[7].type = nsXPTType::T_I64;
+    var[7].flags = 0;
+
+    var[8].val.i32 = 9;
+    var[8].type = nsXPTType::T_I32;
+    var[8].flags = 0;
+
+    var[9].val.i64 = 10;
+    var[9].type = nsXPTType::T_I64;
+    var[9].flags = 0;
+
+    var[10].val.i64 = 0;
+    var[10].type = nsXPTType::T_I64;
+    var[10].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[10].ptr = &var[10].val.i64;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 13, 11, var)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = %d\n",
+	       (int)var[10].val.i64);
+    else
+        bufprintf("\tFAILED");
+
+    var[0].val.f = 1.0f;
+    var[0].type = nsXPTType::T_FLOAT;
+    var[0].flags = 0;
+
+    var[1].val.f = 2.0f;
+    var[1].type = nsXPTType::T_FLOAT;
+    var[1].flags = 0;
+
+    var[2].val.d = 3.0;
+    var[2].type = nsXPTType::T_DOUBLE;
+    var[2].flags = 0;
+
+    var[3].val.d = 4.0;
+    var[3].type = nsXPTType::T_DOUBLE;
+    var[3].flags = 0;
+
+    var[4].val.f = 5.0f;
+    var[4].type = nsXPTType::T_FLOAT;
+    var[4].flags = 0;
+
+    var[5].val.f = 6.0f;
+    var[5].type = nsXPTType::T_FLOAT;
+    var[5].flags = 0;
+
+    var[6].val.d = 7.0;
+    var[6].type = nsXPTType::T_DOUBLE;
+    var[6].flags = 0;
+
+    var[7].val.d = 8.0;
+    var[7].type = nsXPTType::T_DOUBLE;
+    var[7].flags = 0;
+
+    var[8].val.f = 9.0f;
+    var[8].type = nsXPTType::T_FLOAT;
+    var[8].flags = 0;
+
+    var[9].val.d = 10.0;
+    var[9].type = nsXPTType::T_DOUBLE;
+    var[9].flags = 0;
+
+    var[10].val.f = 11.0f;
+    var[10].type = nsXPTType::T_FLOAT;
+    var[10].flags = 0;
+
+    var[11].val.d = 0.0;
+    var[11].type = nsXPTType::T_DOUBLE;
+    var[11].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[11].ptr = &var[11].val.d;
+
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 14, 12, var)))
+        bufprintf("\t1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 = %f\n",
+                var[11].val.d);
+    else
+        bufprintf("\tFAILED");
+
+    var[0].val.p = (void*)"moo";
+    var[0].type = nsXPTType::T_CHAR_STR;
+    var[0].flags = 0;
+
+    var[1].val.p = (void*)"cow";
+    var[1].type = nsXPTType::T_CHAR_STR;
+    var[1].flags = 0;
+    
+    var[2].val.p = 0;
+    var[2].type = nsXPTType::T_CHAR_STR;
+    var[2].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[2].ptr = &var[2].val.p;
+    
+    if(NS_SUCCEEDED(XPTC_InvokeByIndex(test, 15, 3, var)))
+    {
+        bufprintf(" = %s\n", var[2].val.p);
+        nsMemory::Free(var[2].val.p);
+    }
+    else
+        bufprintf("\tFAILED");
+    int rcExit = comparebuffers(0);
+
+    rcExit = DoMultipleInheritenceTest(rcExit);
+    rcExit = DoMultipleInheritenceTest2(rcExit);
+    // Disabled by default - takes too much time on slow machines
+    //DoSpeedTest();
+
+    NS_RELEASE(test);
+
+    return rcExit;
+}
+
+/***************************************************************************/
+/***************************************************************************/
+/***************************************************************************/
+
+// {491C65A0-3317-11d3-9885-006008962422}
+#define FOO_IID \
+{ 0x491c65a0, 0x3317, 0x11d3, \
+    { 0x98, 0x85, 0x0, 0x60, 0x8, 0x96, 0x24, 0x22 } }
+
+// {491C65A1-3317-11d3-9885-006008962422}
+#define BAR_IID \
+{ 0x491c65a1, 0x3317, 0x11d3, \
+    { 0x98, 0x85, 0x0, 0x60, 0x8, 0x96, 0x24, 0x22 } }
+
+/***************************/
+
+class nsIFoo : public nsISupports
+{
+public:
+    NS_DEFINE_STATIC_IID_ACCESSOR(FOO_IID)
+    NS_IMETHOD FooMethod1(PRInt32 i) = 0;
+    NS_IMETHOD FooMethod2(PRInt32 i) = 0;
+};
+
+class nsIBar : public nsISupports
+{
+public:
+    NS_DEFINE_STATIC_IID_ACCESSOR(BAR_IID)
+    NS_IMETHOD BarMethod1(PRInt32 i) = 0;
+    NS_IMETHOD BarMethod2(PRInt32 i) = 0;
+};
+
+/***************************/
+
+class FooImpl : public nsIFoo
+{
+public:
+    NS_IMETHOD FooMethod1(PRInt32 i);
+    NS_IMETHOD FooMethod2(PRInt32 i);
+
+    FooImpl();
+
+protected:
+    ~FooImpl() {}
+
+public:
+    virtual const char* ImplName() = 0;
+
+    int SomeData1;
+    int SomeData2;
+    const char* Name;
+};
+
+class BarImpl : public nsIBar
+{
+public:
+    NS_IMETHOD BarMethod1(PRInt32 i);
+    NS_IMETHOD BarMethod2(PRInt32 i);
+
+    BarImpl();
+
+protected:
+    ~BarImpl() {}
+
+public:
+    virtual const char * ImplName() = 0;
+
+    int SomeData1;
+    int SomeData2;
+    const char* Name;
+};
+
+/***************************/
+
+FooImpl::FooImpl() : Name("FooImpl")
+{
+}
+
+NS_IMETHODIMP FooImpl::FooMethod1(PRInt32 i)
+{
+    bufprintf("\tFooImpl::FooMethod1 called with i == %d, %s part of a %s\n",
+           i, Name, ImplName());
+    return NS_OK;
+}
+
+NS_IMETHODIMP FooImpl::FooMethod2(PRInt32 i)
+{
+    bufprintf("\tFooImpl::FooMethod2 called with i == %d, %s part of a %s\n",
+           i, Name, ImplName());
+    return NS_OK;
+}
+
+/***************************/
+
+BarImpl::BarImpl() : Name("BarImpl")
+{
+}
+
+NS_IMETHODIMP BarImpl::BarMethod1(PRInt32 i)
+{
+    bufprintf("\tBarImpl::BarMethod1 called with i == %d, %s part of a %s\n",
+           i, Name, ImplName());
+    return NS_OK;
+}
+
+NS_IMETHODIMP BarImpl::BarMethod2(PRInt32 i)
+{
+    bufprintf("\tBarImpl::BarMethod2 called with i == %d, %s part of a %s\n",
+           i, Name, ImplName());
+    return NS_OK;
+}
+
+/***************************/
+
+class FooBarImpl : public FooImpl, public BarImpl
+{
+public:
+    NS_DECL_ISUPPORTS
+
+    const char* ImplName();
+
+    FooBarImpl();
+
+private:
+    ~FooBarImpl() {}
+
+public:
+    const char* MyName;
+};
+
+FooBarImpl::FooBarImpl() : MyName("FooBarImpl")
+{
+    NS_ADDREF_THIS();
+}
+
+const char* FooBarImpl::ImplName()
+{
+    return MyName;
+}
+
+NS_IMETHODIMP
+FooBarImpl::QueryInterface(REFNSIID aIID, void** aInstancePtr)
+{
+  if (NULL == aInstancePtr) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  *aInstancePtr = NULL;
+
+
+  if (aIID.Equals(NS_GET_IID(nsIFoo))) {
+    *aInstancePtr = (void*) NS_STATIC_CAST(nsIFoo*,this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  if (aIID.Equals(NS_GET_IID(nsIBar))) {
+    *aInstancePtr = (void*) NS_STATIC_CAST(nsIBar*,this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+
+  if (aIID.Equals(NS_GET_IID(nsISupports))) {
+    *aInstancePtr = (void*) NS_STATIC_CAST(nsISupports*,
+                                           NS_STATIC_CAST(nsIFoo*,this));
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  return NS_NOINTERFACE;
+}
+
+NS_IMPL_ADDREF(FooBarImpl)
+NS_IMPL_RELEASE(FooBarImpl)
+
+
+static int DoMultipleInheritenceTest(int rcExit)
+{
+    FooBarImpl* impl = new FooBarImpl();
+    if(!impl)
+        return 1;
+
+    nsIFoo* foo;
+    nsIBar* bar;
+
+    nsXPTCVariant var[1];
+
+    printf("\n");
+    if(NS_SUCCEEDED(impl->QueryInterface(NS_GET_IID(nsIFoo), (void**)&foo)) &&
+       NS_SUCCEEDED(impl->QueryInterface(NS_GET_IID(nsIBar), (void**)&bar)))
+    {
+        printf("impl == %p\n", impl);
+        printf("foo  == %p\n", foo);
+        printf("bar  == %p\n", bar);
+
+        printf("Calling Foo...\n");
+        printf("direct calls:\n");
+        setbuffer(true);
+        foo->FooMethod1(1);
+        foo->FooMethod2(2);
+
+        printf("invoke calls:\n");
+        setbuffer(false);
+        var[0].val.i32 = 1;
+        var[0].type = nsXPTType::T_I32;
+        var[0].flags = 0;
+        XPTC_InvokeByIndex(foo, 3, 1, var);
+
+        var[0].val.i32 = 2;
+        var[0].type = nsXPTType::T_I32;
+        var[0].flags = 0;
+        XPTC_InvokeByIndex(foo, 4, 1, var);
+
+        rcExit = comparebuffers(rcExit);
+        printf("\n");
+
+        printf("Calling Bar...\n");
+        printf("direct calls:\n");
+        setbuffer(true);
+        bar->BarMethod1(1);
+        bar->BarMethod2(2);
+
+        printf("invoke calls:\n");
+        setbuffer(false);
+        var[0].val.i32 = 1;
+        var[0].type = nsXPTType::T_I32;
+        var[0].flags = 0;
+        XPTC_InvokeByIndex(bar, 3, 1, var);
+
+        var[0].val.i32 = 2;
+        var[0].type = nsXPTType::T_I32;
+        var[0].flags = 0;
+        XPTC_InvokeByIndex(bar, 4, 1, var);
+
+        rcExit = comparebuffers(rcExit);
+        printf("\n");
+
+        NS_RELEASE(foo);
+        NS_RELEASE(bar);
+    }
+    else
+        rcExit = 1;
+    NS_RELEASE(impl);
+    return rcExit;
+}
+/***************************************************************************/
+/***************************************************************************/
+/***************************************************************************/
+/* This is a variation on the theme submitted by duncan@be.com (Duncan Wilcox).
+*  He was seeing the other test work and this test not work. They should both
+*  Work on any given platform
+*/
+
+class nsIFoo2 : public nsISupports
+{
+public:
+    NS_IMETHOD FooMethod1(PRInt32 i) = 0;
+    NS_IMETHOD FooMethod2(PRInt32 i) = 0;
+};
+
+class nsIBar2 : public nsISupports
+{
+public:
+    NS_IMETHOD BarMethod1(PRInt32 i) = 0;
+    NS_IMETHOD BarMethod2(PRInt32 i) = 0;
+};
+
+class FooBarImpl2 : public nsIFoo2, public nsIBar2
+{
+public:
+    // Foo interface
+    NS_IMETHOD FooMethod1(PRInt32 i);
+    NS_IMETHOD FooMethod2(PRInt32 i);
+
+    // Bar interface
+    NS_IMETHOD BarMethod1(PRInt32 i);
+    NS_IMETHOD BarMethod2(PRInt32 i);
+
+    NS_DECL_ISUPPORTS
+
+    FooBarImpl2();
+
+private:
+    ~FooBarImpl2() {}
+
+public:
+    PRInt32 value;
+};
+
+FooBarImpl2::FooBarImpl2() : value(0x12345678)
+{
+    NS_ADDREF_THIS();
+}
+
+NS_IMETHODIMP FooBarImpl2::FooMethod1(PRInt32 i)
+{
+    bufprintf("\tFooBarImpl2::FooMethod1 called with i == %d, local value = %x\n",
+           i, value);
+    return NS_OK;
+}
+
+NS_IMETHODIMP FooBarImpl2::FooMethod2(PRInt32 i)
+{
+    bufprintf("\tFooBarImpl2::FooMethod2 called with i == %d, local value = %x\n",
+           i, value);
+    return NS_OK;
+}
+
+NS_IMETHODIMP FooBarImpl2::BarMethod1(PRInt32 i)
+{
+    bufprintf("\tFooBarImpl2::BarMethod1 called with i == %d, local value = %x\n",
+           i, value);
+    return NS_OK;
+}
+
+NS_IMETHODIMP FooBarImpl2::BarMethod2(PRInt32 i)
+{
+    bufprintf("\tFooBarImpl2::BarMethod2 called with i == %d, local value = %x\n",
+           i, value);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+FooBarImpl2::QueryInterface(REFNSIID aIID, void** aInstancePtr)
+{
+  if (NULL == aInstancePtr) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  *aInstancePtr = NULL;
+
+
+  if (aIID.Equals(NS_GET_IID(nsIFoo))) {
+    *aInstancePtr = (void*) NS_STATIC_CAST(nsIFoo2*,this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  if (aIID.Equals(NS_GET_IID(nsIBar))) {
+    *aInstancePtr = (void*) NS_STATIC_CAST(nsIBar2*,this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+
+  if (aIID.Equals(NS_GET_IID(nsISupports))) {
+    *aInstancePtr = (void*) NS_STATIC_CAST(nsISupports*,
+                                           NS_STATIC_CAST(nsIFoo2*,this));
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  return NS_NOINTERFACE;
+}
+
+NS_IMPL_ADDREF(FooBarImpl2)
+NS_IMPL_RELEASE(FooBarImpl2)
+
+static int DoMultipleInheritenceTest2(int rcExit)
+{
+    FooBarImpl2* impl = new FooBarImpl2();
+    if(!impl)
+        return 1;
+
+    nsIFoo2* foo;
+    nsIBar2* bar;
+
+    nsXPTCVariant var[1];
+
+    printf("\n");
+    if(NS_SUCCEEDED(impl->QueryInterface(NS_GET_IID(nsIFoo), (void**)&foo)) &&
+       NS_SUCCEEDED(impl->QueryInterface(NS_GET_IID(nsIBar), (void**)&bar)))
+    {
+        printf("impl == %p\n", impl);
+        printf("foo  == %p\n", foo);
+        printf("bar  == %p\n", bar);
+
+        printf("Calling Foo...\n");
+        printf("direct calls:\n");
+        setbuffer(true);
+        foo->FooMethod1(1);
+        foo->FooMethod2(2);
+
+        printf("invoke calls:\n");
+        setbuffer(false);
+        var[0].val.i32 = 1;
+        var[0].type = nsXPTType::T_I32;
+        var[0].flags = 0;
+        XPTC_InvokeByIndex(foo, 3, 1, var);
+
+        var[0].val.i32 = 2;
+        var[0].type = nsXPTType::T_I32;
+        var[0].flags = 0;
+        XPTC_InvokeByIndex(foo, 4, 1, var);
+
+        rcExit = comparebuffers(rcExit);
+        printf("\n");
+
+        printf("Calling Bar...\n");
+        printf("direct calls:\n");
+        setbuffer(true);
+        bar->BarMethod1(1);
+        bar->BarMethod2(2);
+
+        printf("invoke calls:\n");
+        setbuffer(false);
+        var[0].val.i32 = 1;
+        var[0].type = nsXPTType::T_I32;
+        var[0].flags = 0;
+        XPTC_InvokeByIndex(bar, 3, 1, var);
+
+        var[0].val.i32 = 2;
+        var[0].type = nsXPTType::T_I32;
+        var[0].flags = 0;
+        XPTC_InvokeByIndex(bar, 4, 1, var);
+
+        rcExit = comparebuffers(rcExit);
+        printf("\n");
+
+        NS_RELEASE(foo);
+        NS_RELEASE(bar);
+    }
+    else
+        rcExit = 1;
+    NS_RELEASE(impl);
+    return rcExit;
+}
+
+static void DoSpeedTest()
+{
+    InvokeTestTarget *test = new InvokeTestTarget();
+
+    nsXPTCVariant var[3];
+
+    var[0].val.i32 = 1;
+    var[0].type = nsXPTType::T_I32;
+    var[0].flags = 0;
+
+    var[1].val.i32 = 1;
+    var[1].type = nsXPTType::T_I32;
+    var[1].flags = 0;
+
+    var[2].val.i32 = 0;
+    var[2].type = nsXPTType::T_I32;
+    var[2].flags = nsXPTCVariant::PTR_IS_DATA;
+    var[2].ptr = &var[2].val.i32;
+
+    PRInt32 in1 = 1;
+    PRInt32 in2 = 1;
+    PRInt32 out;
+
+    // Crank this number down if your platform is slow :)
+    static const int count = 100000000;
+    int i;
+    PRIntervalTime start;
+    PRIntervalTime interval_direct;
+    PRIntervalTime interval_invoke;
+
+    printf("Speed test...\n\n");
+    printf("Doing %d direct call iterations...\n", count); 
+    start = PR_IntervalNow();
+    for(i = count; i; i--)
+        (void)test->AddTwoInts(in1, in2, &out);
+    interval_direct = PR_IntervalNow() - start;
+
+    printf("Doing %d invoked call iterations...\n", count); 
+    start = PR_IntervalNow();
+    for(i = count; i; i--)
+        (void)XPTC_InvokeByIndex(test, 3, 3, var);
+    interval_invoke = PR_IntervalNow() - start;
+
+    printf(" direct took %0.2f seconds\n", 
+            (double)interval_direct/(double)PR_TicksPerSecond());
+    printf(" invoke took %0.2f seconds\n", 
+            (double)interval_invoke/(double)PR_TicksPerSecond());
+    printf(" So, invoke overhead was ~ %0.2f seconds (~ %0.0f%%)\n", 
+            (double)(interval_invoke-interval_direct)/(double)PR_TicksPerSecond(),
+            (double)(interval_invoke-interval_direct)/(double)interval_invoke*100);
+}