1 // This should warn by default.
2 // RUN: %clang_cc1 %s 2>&1 | grep "warning:"
4 // This should not emit anything.
5 // RUN: %clang_cc1 %s -w 2>&1 | not grep diagnostic
6 // RUN: %clang_cc1 %s -Wno-#warnings 2>&1 | not grep diagnostic
8 // -Werror can map all warnings to error.
9 // RUN: %clang_cc1 %s -Werror 2>&1 | grep "error:"
11 // -Werror can map this one warning to error.
12 // RUN: %clang_cc1 %s -Werror=#warnings 2>&1 | grep "error:"
14 // -Wno-error= overrides -Werror. rdar://3158301
15 // RUN: %clang_cc1 %s -Werror -Wno-error=#warnings 2>&1 | grep "warning:"
17 // -Wno-error overrides -Werror. PR4715
18 // RUN: %clang_cc1 %s -Werror -Wno-error 2>&1 | grep "warning:"