1// This should warn by default. 2// RUN: %clang_cc1 %s 2>&1 | grep "warning:" 3 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 7 8// -Werror can map all warnings to error. 9// RUN: %clang_cc1 %s -Werror 2>&1 | grep "error:" 10 11// -Werror can map this one warning to error. 12// RUN: %clang_cc1 %s -Werror=#warnings 2>&1 | grep "error:" 13 14// -Wno-error= overrides -Werror. rdar://3158301 15// RUN: %clang_cc1 %s -Werror -Wno-error=#warnings 2>&1 | grep "warning:" 16 17// -Wno-error overrides -Werror. PR4715 18// RUN: %clang_cc1 %s -Werror -Wno-error 2>&1 | grep "warning:" 19 20#warning foo 21 22 23