https://bugs.llvm.org/show_bug.cgi?id=45260
Bug ID: 45260
Summary: -Wshadow doesn't warn when shadowing symbol from
anonymous or outer namespace
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: h...@chromium.org
CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org,
neeil...@live.com, richard-l...@metafoo.co.uk
For example:
$ cat /tmp/a.cc
namespace {
constexpr int foo = 42;
}
namespace ns {
int f() {
constexpr int foo = 42;
return foo;
}
}
$ bin/clang -c -Wshadow /tmp/a.cc
(no warning)
There's also no warning if the first 'foo' is at file-scope (i.e. without any
namespace). However, if the first 'foo' is put in 'namespace ns', then it does
warn.
Is there a reason it doesn't warn in the first two cases? It still seems like a
case of shadowing to me.
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