clang/test/SemaCXX/warn-self-comparisons.cpp

   1 // RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify %s -verify=expected,not-cxx20
   2 // RUN: %clang_cc1 -std=c++20 -fsyntax-only -Wdeprecated -verify %s -verify=expected,cxx20
   3 // RUN: %clang_cc1 -std=c++26 -fsyntax-only -Wdeprecated -verify %s -verify=expected,cxx26
   4
   5 void f(int (&array1)[2], int (&array2)[2]) {
   6   if (array1 == array2) { } // not-cxx20-warning {{comparison between two arrays compare their addresses}} cxx20-warning {{comparison between two arrays is deprecated}}
   7                             // cxx26-error@-1 {{comparison between two arrays is ill-formed in C++26}}
   8 }