1 files changed, 79 insertions, 0 deletions
diff --git a/TAO/tao/idl_features.h b/TAO/tao/idl_features.h
new file mode 100644
index 00000000000..c9453aede18
--- /dev/null
+++ b/TAO/tao/idl_features.h
@@ -0,0 +1,79 @@
+/**
+ * @file idl_features.h
+ *
+ * Get information about what IDL features the IDL compiler has, similarly to
+ * the "version" standard header in C++.
+ *
+ * In C++ it can be used like this if you want to be compatible with older
+ * versions of TAO:
+ *
+ * #include "tao/orbconf.h"
+ * #if defined TAO_HAS_IDL_FEATURES && TAO_HAS_IDL_FEATURES
+ * // Use this macro if you are using something that's not the max possible
+ * // version.
+ * #  define TAO_IDL_IDL_VERSION 0x30000
+ * #  include "tao/idl_features.h"
+ * #  if defined TAO_IDL_HAS_FEATURE && TAO_IDL_HAS_FEATURE
+ * #    define USE_FEATURE
+ * #  endif
+ * #endif
+ *
+ * In IDL it can be used like this if you want to be compatible with older
+ * versions of TAO:
+ *
+ * #if defined __TAO_IDL_FEATURES
+ * #  include __TAO_IDL_FEATURES
+ * #  if defined TAO_IDL_HAS_FEATURE && TAO_IDL_HAS_FEATURE
+ * #    define USE_FEATURE
+ * #  endif
+ * #endif
+ *
+ * Note that support for annotations and anonymous types in IDL4 predate this
+ * file, so they are a potential special case depending on what ACE/TAO is
+ * being used.
+ */
+
+#ifndef TAO_IDL_FEATURES_H
+#define TAO_IDL_FEATURES_H
+
+#ifndef TAO_IDL_IDL_VERSION
+#  ifdef __TAO_IDL_IDL_VERSION
+#    define TAO_IDL_IDL_VERSION __TAO_IDL_IDL_VERSION
+#  else
+#    define TAO_IDL_IDL_VERSION 0xffffffff
+#  endif
+#endif
+
+#ifndef TAO_IDL_HAS_ANNOTATIONS
+#  define TAO_IDL_HAS_ANNOTATIONS TAO_IDL_IDL_VERSION >= 0x40000
+#endif
+
+#ifndef TAO_IDL_HAS_ANONYMOUS_TYPES
+#  define TAO_IDL_HAS_ANONYMOUS_TYPES TAO_IDL_IDL_VERSION >= 0x40000
+#endif
+
+#ifndef TAO_IDL_HAS_EXPLICIT_INTS
+#  define TAO_IDL_HAS_EXPLICIT_INTS TAO_IDL_IDL_VERSION >= 0x40000
+#endif
+
+#ifndef TAO_IDL_HAS_OCTET_AND_WCHAR_UNION_DISCS
+#  define TAO_IDL_HAS_OCTET_AND_WCHAR_UNION_DISCS 0
+#endif
+
+#ifndef TAO_IDL_HAS_STRUCT_INHERITANCE
+#  define TAO_IDL_HAS_STRUCT_INHERITANCE 0
+#endif
+
+#ifndef TAO_IDL_HAS_MAP
+#  define TAO_IDL_HAS_MAP 0
+#endif
+
+#ifndef TAO_IDL_HAS_BITSET
+#  define TAO_IDL_HAS_BITSET 0
+#endif
+
+#ifndef TAO_IDL_HAS_BITMASK
+#  define TAO_IDL_HAS_BITMASK 0
+#endif
+
+#endif