https://llvm.org/bugs/show_bug.cgi?id=28901
Bug ID: 28901
Summary: -Wexpansion-to-defined enabled without -pedantic
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: bonz...@gnu.org
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Macros that expand to "defined" are undefined behavior according to the C
standard, but clang, as a language extension, is implementing it by always
treating "defined" as the preprocessor operator.
While it is a good idea to add a separate warning flag for
-Wexpansion-to-defined, it should only be enabled by default if -pedantic or
perhaps -Wextra (and of course -Weverything) is provided. It should not be
enabled by -Wall.
--
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
