1 // RUN: %clang_cc1 -fms-extensions -D MS -isystem %S/Inputs %s -fsyntax-only -verify 2 // RUN: %clang_cc1 -isystem %S/Inputs %s -fsyntax-only -verify 3 4 // PR17824: GNU libc uses MS keyword __uptr as an identifier in C mode 5 #include <ms-keyword-system-header.h> 6 7 void fn() { 8 WS ws; 9 ws.__uptr = 0; 10 #ifdef MS 11 // expected-error@-2 {{expected identifier}} 12 #else 13 // expected-no-diagnostics 14 #endif 15 } 16