// Include the constantsBlock at the top so that sharedBlocks from
// actors can use true and false etc. StringMatches needs this.
CodeStream sharedStream = new CodeStream(
"$CLASSPATH/ptolemy/codegen/SystemC/kernel/SharedCode.c", this);
sharedStream.appendCodeBlock("constantsBlock");
code.append(sharedStream.toString());
HashSet functions = _getReferencedFunctions();
HashSet types = _getReferencedTypes(functions);