https://llvm.org/bugs/show_bug.cgi?id=24630
Bug ID: 24630
Summary: -Wnonnull should not warn when in an unevaluated
context.
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: e...@efcs.ca
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
Currently when a function annotated with __attribute__((nonnull)) is called in
an unevaluated context with a null pointer a -Wnonnull warning is emitted.
However it is useful to be able to pass null pointers to non-null parameters
within meta-programming. For this reason I don't think the following code
should produce a warning with -Wnonnull.
// clang++ -c -fsyntax-only -Wnonnull test.cpp
int foo(int* __attribute__((nonnull))) { return 42; }
int x = sizeof(foo(0));
Note: g++ does not emit a warning on this code.
--
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
