http://llvm.org/bugs/show_bug.cgi?id=4860
Summary: Clang doesn't honour -Wno-attributes when applying
__attribute__((__warn_unused_result__)) to variables.
Product: new-bugs
Version: unspecified
Platform: PC
OS/Version: Solaris
Status: NEW
Severity: normal
Priority: P2
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
The following program solicits a warning when the __warn_unused_result__
attribute is applied to a variable. gcc >= 4.1 does not emit a warning with
-Wno-attributes.
$ cat >wnoattr-var.c
__attribute__((__warn_unused_result__)) int x;
$ /opt/clang/bin/clang -c -Wall -Wno-attributes wnoattr-var.c
wnoattr-var.c:1:16: warning: '__warn_unused_result__' attribute only applies to
function types
__attribute__((__warn_unused_result__)) int x;
^
1 diagnostic generated.
$ /opt/clang/bin/clang -v
clang version 1.0 (http://llvm.org/svn/llvm-project/cfe/trunk 80665)
Target: i386-pc-solaris2.11
Thread model: posix
$ uname -a
SunOS hydra 5.11 snv_110 i86pc i386 i86pc
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