[analyzer] Allow suppressing diagnostics reported within the 'std' namespace

This is controlled by the 'suppress-c++-stdlib' analyzer-config flag.
It is currently off by default.

This is more suppression than we'd like to do, since obviously there can
be user-caused issues within 'std', but it gives us the option to wield
a large hammer to suppress false positives the user likely can't work
around.

llvm-svn: 178513

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/test/Analysis/Inputs/system-header-simulator-cxx.h b/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
index 03de527a02d..eee0e31a6f8 100644
--- a/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
+++ b/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
@@ -73,6 +73,13 @@ namespace std {
   struct nothrow_t {};
 
   extern const nothrow_t nothrow;
+
+  template<class InputIter, class OutputIter>
+  OutputIter copy(InputIter II, InputIter IE, OutputIter OI) {
+    while (II != IE)
+      *OI++ = *II++;
+    return OI;
+  }
 }
 
 void* operator new(std::size_t, const std::nothrow_t&) throw();