1 files changed, 70 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/consttobool.cxx b/compilerplugins/clang/test/consttobool.cxx
new file mode 100644
index 000000000..4fe41a814
--- /dev/null
+++ b/compilerplugins/clang/test/consttobool.cxx
@@ -0,0 +1,70 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+
+#include <sal/types.h>
+
+#pragma clang diagnostic ignored "-Wnull-conversion"
+
+enum E
+{
+    E0,
+    E1,
+    E2
+};
+
+int const c1 = 1;
+constexpr int c2 = 2;
+
+struct S
+{
+    S()
+    // expected-error-re@+1 {{implicit conversion of constant {{nullptr|0}} of type '{{(std::)?}}nullptr_t' to 'bool'; use 'false' instead [loplugin:consttobool]}}
+    : b(nullptr)
+    {
+    }
+    bool b;
+};
+
+int main()
+{
+    bool b;
+    // expected-error@+1 {{implicit conversion of constant 0 of type 'int' to 'bool'; use 'false' instead [loplugin:consttobool]}}
+    b = 0;
+    // expected-error@+1 {{implicit conversion of constant 1 of type 'sal_Bool' (aka 'unsigned char') to 'bool'; use 'true' instead [loplugin:consttobool]}}
+    b = sal_True;
+    // expected-error@+1 {{implicit conversion of constant 1.000000e+00 of type 'double' to 'bool'; use 'true' instead [loplugin:consttobool]}}
+    b = 1.0;
+    // expected-error@+1 {{implicit conversion of constant 2 of type 'E' to 'bool'; use 'true' instead [loplugin:consttobool]}}
+    b = E2;
+    // expected-error@+1 {{implicit conversion of constant 97 of type 'char' to 'bool'; use 'true' instead [loplugin:consttobool]}}
+    b = 'a';
+    // expected-error@+1 {{implicit conversion of constant 1 of type 'int' to 'bool'; use 'true' instead [loplugin:consttobool]}}
+    b = c1;
+    // expected-error@+1 {{implicit conversion of constant 2 of type 'int' to 'bool'; use 'true' instead [loplugin:consttobool]}}
+    b = c2;
+    // expected-error@+1 {{implicit conversion of constant 3 of type 'int' to 'bool'; use 'true' instead [loplugin:consttobool]}}
+    b = (c1 | c2);
+
+#if !defined NDEBUG
+    assert(b); // no warnings from within assert macro itself
+    assert(b && "msg"); // no warnings for `&& "msg"`
+    if (b)
+    {
+        assert(!"msg"); // no warnings for `!"msg"`
+    }
+    // expected-error@+1 {{implicit conversion of constant &"msg"[0] of type 'const char *' to 'bool'; use 'true' instead [loplugin:consttobool]}}
+    assert("msg");
+#endif
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */