1 files changed, 42 insertions, 0 deletions
diff --git a/Utilities/ClangTidyModule/Tests/cmake-use-cmstrlen.cxx b/Utilities/ClangTidyModule/Tests/cmake-use-cmstrlen.cxx
new file mode 100644
index 0000000000..205bc9cc85
--- /dev/null
+++ b/Utilities/ClangTidyModule/Tests/cmake-use-cmstrlen.cxx
@@ -0,0 +1,42 @@
+#include <cstring>
+
+template <size_t N>
+constexpr size_t cmStrLen(const char (&/*str*/)[N])
+{
+  return N - 1;
+}
+
+namespace ns1 {
+using std::strlen;
+}
+
+namespace ns2 {
+std::size_t strlen(const char* str)
+{
+  return std::strlen(str);
+}
+}
+
+int main()
+{
+  // String variable used for calling strlen() on a variable
+  auto s0 = "howdy";
+
+  // Correction needed
+  (void)strlen("Hello");
+  (void)::strlen("Goodbye");
+  (void)std::strlen("Hola");
+  (void)ns1::strlen("Bonjour");
+  (void)(sizeof("Hallo") - 1);
+  (void)(4 + sizeof("Hallo") - 1);
+  (void)(sizeof "Hallo" - 1);
+  (void)(4 + sizeof "Hallo" - 1);
+
+  // No correction needed
+  (void)ns2::strlen("Salve");
+  (void)cmStrLen("Konnichiwa");
+  (void)strlen(s0);
+  (void)(sizeof("Hallo") - 2);
+
+  return 0;
+}