Merge branch 'jsoncpp-upstream' into import-jsoncpp

Use a subtree merge to place the upstream content in the
Utilities/cmjsoncpp directory.

Utilities/cmjsoncpp/include/json/assertions.h

@@ -0,0 +1,41 @@
+// Copyright 2007-2010 Baptiste Lepilleur
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef CPPTL_JSON_ASSERTIONS_H_INCLUDED
+#define CPPTL_JSON_ASSERTIONS_H_INCLUDED
+
+#include <stdlib.h>
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "config.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+#if JSON_USE_EXCEPTION
+#include <stdexcept>
+#define JSON_ASSERT(condition)                                                 \
+  assert(condition); // @todo <= change this into an exception throw
+#define JSON_FAIL_MESSAGE(message) throw std::runtime_error(message);
+#else // JSON_USE_EXCEPTION
+#define JSON_ASSERT(condition) assert(condition);
+
+// The call to assert() will show the failure message in debug builds. In
+// release bugs we write to invalid memory in order to crash hard, so that a
+// debugger or crash reporter gets the chance to take over. We still call exit()
+// afterward in order to tell the compiler that this macro doesn't return.
+#define JSON_FAIL_MESSAGE(message)                                             \
+  {                                                                            \
+    assert(false&& message);                                                   \
+    strcpy(reinterpret_cast<char*>(666), message);                             \
+    exit(123);                                                                 \
+  }
+
+#endif
+
+#define JSON_ASSERT_MESSAGE(condition, message)                                \
+  if (!(condition)) {                                                          \
+    JSON_FAIL_MESSAGE(message)                                                 \
+  }
+
+#endif // CPPTL_JSON_ASSERTIONS_H_INCLUDED