clang/test/Sema/integer-overflow.cpp

   1 // RUN: %clang_cc1 %s -Wno-unused-value -verify -fsyntax-only
   2
   3 namespace GH58944 {
   4 struct A {
   5   A(unsigned long) ;
   6 };
   7
   8 A a(1024 * 1024 * 1024 * 1024 * 1024ull); // expected-warning {{overflow in expression; result is 0 with type 'int'}}
   9
  10 void f() {
  11   new int[1024 * 1024 * 1024 * 1024 * 1024ull]; // expected-warning {{overflow in expression; result is 0 with type 'int'}}
  12
  13   int arr[]{1,2,3};
  14   arr[1024 * 1024 * 1024 * 1024 * 1024ull]; // expected-warning {{overflow in expression; result is 0 with type 'int'}}
  15
  16   (int){1024 * 1024 * 1024 * 1024 * 1024}; // expected-warning {{overflow in expression; result is 0 with type 'int'}}
  17 }
  18 }