gcc/testsuite/g++.dg/cpp0x/nullptr22.C

   1 // { dg-do compile { target c++11 } }
   2 // { dg-options "-Wall -Wformat=2 -Wstrict-null-sentinel" }
   3
   4 // Test various warnings
   5
   6 void f1(const char*, ...) __attribute__((format(printf, 1, 2)));
   7 void f2(const char*) __attribute__((nonnull));
   8 void f3(const char*, ...) __attribute__((sentinel));
   9
  10 void f()
  11 {
  12   f1("%p", nullptr);
  13   f2(nullptr); // { dg-warning "argument 1 null where non-null expected " }
  14   f3("x", "y", __null); // { dg-warning "missing sentinel in function call" }
  15   f3("x", "y", nullptr);
  16   decltype(nullptr) mynull = 0;
  17   f1("%p", mynull);
  18   f2(mynull); // { dg-warning "argument 1 null where non-null expected " }
  19   f3("x", "y", mynull);
  20 }