--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-1.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,100 @@
+// { dg-options "-Wzero-as-null-pointer-constant" }
+
+struct A;
+
+typedef int (A::*pointmemfun) (int);
+typedef int (A::*pointdmem);
+typedef int (*pointfun) (int);
+
+pointmemfun pmfs;
+pointdmem   pdms;
+pointfun    pfs;     
+int*        ps;
+
+void f()
+{
+  pointmemfun pmf(0);   // { dg-warning "zero as null pointer" }
+  pointdmem   pdm(0);   // { dg-warning "zero as null pointer" }
+  pointfun    pf(0);    // { dg-warning "zero as null pointer" }
+  int*        p(0);     // { dg-warning "zero as null pointer" }
+
+  pmf = 0;              // { dg-warning "zero as null pointer" }
+
+  pdm = 0;              // { dg-warning "zero as null pointer" }
+
+  pf = 0;               // { dg-warning "zero as null pointer" }
+
+  p = 0;                // { dg-warning "zero as null pointer" }
+
+  if (pmf)
+    ;
+  
+  if (pdm)
+    ;
+
+  if (pf)
+    ;
+
+  if (p)
+    ;
+
+  if (!pmf)
+    ;
+  
+  if (!pdm)
+    ;
+
+  if (!pf)
+    ;
+
+  if (!p)
+    ;
+
+  if (pmf == 0)         // { dg-warning "zero as null pointer" }
+    ;
+  
+  if (pdm == 0)         // { dg-warning "zero as null pointer" }
+    ;
+
+  if (pf == 0)          // { dg-warning "zero as null pointer" }
+    ;
+
+  if (p == 0)           // { dg-warning "zero as null pointer" }
+    ;
+
+  if (0 == pmf)         // { dg-warning "zero as null pointer" }
+    ;
+  
+  if (0 == pdm)         // { dg-warning "zero as null pointer" }
+    ;
+
+  if (0 == pf)          // { dg-warning "zero as null pointer" }
+    ;
+
+  if (0 == p)           // { dg-warning "zero as null pointer" }
+    ;
+
+  if (pmf != 0)         // { dg-warning "zero as null pointer" }
+    ;
+  
+  if (pdm != 0)         // { dg-warning "zero as null pointer" }
+    ;
+
+  if (pf != 0)          // { dg-warning "zero as null pointer" }
+    ;
+
+  if (p != 0)           // { dg-warning "zero as null pointer" }
+    ;
+
+  if (0 != pmf)         // { dg-warning "zero as null pointer" }
+    ;
+  
+  if (0 != pdm)         // { dg-warning "zero as null pointer" }
+    ;
+
+  if (0 != pf)          // { dg-warning "zero as null pointer" }
+    ;
+
+  if (0 != p)           // { dg-warning "zero as null pointer" }
+    ;
+}