clang/test/SemaCXX/nullptr_in_arithmetic_ops.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -Wno-tautological-pointer-compare -fblocks -std=c++11 -verify %s
   2
   3 void foo() {
   4   int a;
   5   bool b;
   6
   7   a = 0 ? nullptr + a : a + nullptr; // expected-error 2{{invalid operands to binary expression}}
   8   a = 0 ? nullptr - a : a - nullptr; // expected-error 2{{invalid operands to binary expression}}
   9   a = 0 ? nullptr / a : a / nullptr; // expected-error 2{{invalid operands to binary expression}}
  10   a = 0 ? nullptr * a : a * nullptr; // expected-error 2{{invalid operands to binary expression}}
  11   a = 0 ? nullptr >> a : a >> nullptr; // expected-error 2{{invalid operands to binary expression}}
  12   a = 0 ? nullptr << a : a << nullptr; // expected-error 2{{invalid operands to binary expression}}
  13   a = 0 ? nullptr % a : a % nullptr; // expected-error 2{{invalid operands to binary expression}}
  14   a = 0 ? nullptr & a : a & nullptr; // expected-error 2{{invalid operands to binary expression}}
  15   a = 0 ? nullptr | a : a | nullptr; // expected-error 2{{invalid operands to binary expression}}
  16   a = 0 ? nullptr ^ a : a ^ nullptr; // expected-error 2{{invalid operands to binary expression}}
  17
  18   // Using two nullptrs should only give one error instead of two.
  19   a = nullptr + nullptr; // expected-error{{invalid operands to binary expression}}
  20   a = nullptr - nullptr; // expected-error{{invalid operands to binary expression}}
  21   a = nullptr / nullptr; // expected-error{{invalid operands to binary expression}}
  22   a = nullptr * nullptr; // expected-error{{invalid operands to binary expression}}
  23   a = nullptr >> nullptr; // expected-error{{invalid operands to binary expression}}
  24   a = nullptr << nullptr; // expected-error{{invalid operands to binary expression}}
  25   a = nullptr % nullptr; // expected-error{{invalid operands to binary expression}}
  26   a = nullptr & nullptr; // expected-error{{invalid operands to binary expression}}
  27   a = nullptr | nullptr; // expected-error{{invalid operands to binary expression}}
  28   a = nullptr ^ nullptr; // expected-error{{invalid operands to binary expression}}
  29
  30   a += nullptr; // expected-error{{invalid operands to binary expression}}
  31   a -= nullptr; // expected-error{{invalid operands to binary expression}}
  32   a /= nullptr; // expected-error{{invalid operands to binary expression}}
  33   a *= nullptr; // expected-error{{invalid operands to binary expression}}
  34   a >>= nullptr; // expected-error{{invalid operands to binary expression}}
  35   a <<= nullptr; // expected-error{{invalid operands to binary expression}}
  36   a %= nullptr; // expected-error{{invalid operands to binary expression}}
  37   a &= nullptr; // expected-error{{invalid operands to binary expression}}
  38   a |= nullptr; // expected-error{{invalid operands to binary expression}}
  39   a ^= nullptr; // expected-error{{invalid operands to binary expression}}
  40
  41   b = a < nullptr || nullptr < a; // expected-error 2{{invalid operands to binary expression}}
  42   b = a > nullptr || nullptr > a; // expected-error 2{{invalid operands to binary expression}}
  43   b = a <= nullptr || nullptr <= a; // expected-error 2{{invalid operands to binary expression}}
  44   b = a >= nullptr || nullptr >= a; // expected-error 2{{invalid operands to binary expression}}
  45   b = a == nullptr || nullptr == a; // expected-error 2{{invalid operands to binary expression}}
  46   b = a != nullptr || nullptr != a; // expected-error 2{{invalid operands to binary expression}}
  47
  48   b = &a < nullptr || nullptr < &a || &a > nullptr || nullptr > &a; // expected-error 4{{invalid operands}}
  49   b = &a <= nullptr || nullptr <= &a || &a >= nullptr || nullptr >= &a; // expected-error 4{{invalid operands}}
  50   b = &a == nullptr || nullptr == &a || &a != nullptr || nullptr != &a;
  51
  52   b = nullptr < nullptr || nullptr > nullptr; // expected-error 2{{invalid operands to binary expression}}
  53   b = nullptr <= nullptr || nullptr >= nullptr; // expected-error 2{{invalid operands to binary expression}}
  54   b = nullptr == nullptr || nullptr != nullptr;
  55
  56   b = ((nullptr)) != a;  // expected-error{{invalid operands to binary expression}}
  57
  58   void (^c)();
  59   c = nullptr;
  60   b = c == nullptr || nullptr == c || c != nullptr || nullptr != c;
  61
  62   class X;
  63   void (X::*d) ();
  64   d = nullptr;
  65   b = d == nullptr || nullptr == d || d != nullptr || nullptr != d;
  66
  67   extern void e();
  68   b = e == nullptr || nullptr == e || e != nullptr || nullptr != e;
  69
  70   int f[2];
  71   b = f == nullptr || nullptr == f || f != nullptr || nullptr != f;
  72   b = "f" == nullptr || nullptr == "f" || "f" != nullptr || nullptr != "f";
  73 }