[analyzer] Fix a crash in CheckerContext::isCLibraryFunction for C++

declarations with special names.

A patch by Dmitri Gribenko.

llvm-svn: 149525

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/test/Analysis/cstring-syntax-cxx.cpp b/clang/test/Analysis/cstring-syntax-cxx.cpp
new file mode 100644
index 0000000..af8b4d78
--- /dev/null
+++ b/clang/test/Analysis/cstring-syntax-cxx.cpp
@@ -0,0 +1,16 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=experimental.unix.cstring.BadSizeArg -analyzer-store=region -verify %s
+
+// Ensure we don't crash on C++ declarations with special names.
+struct X {
+  X(int i): i(i) {}
+  int i;
+};
+
+X operator+(X a, X b) {
+  return X(a.i + b.i);
+}
+
+void test(X a, X b) {
+  X c = a + b;
+}
+