1 files changed, 132 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/general/gr_feval.cc b/gnuradio-core/src/lib/general/gr_feval.cc
new file mode 100644
index 000000000..89f09984c
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_feval.cc
@@ -0,0 +1,132 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gr_feval.h>
+
+gr_feval_dd::~gr_feval_dd(){}
+
+double
+gr_feval_dd::eval(double x)
+{
+  return 0;
+}
+
+double
+gr_feval_dd::calleval(double x)
+{
+  return eval(x);
+}
+
+// ----------------------------------------------------------------
+
+gr_feval_cc::~gr_feval_cc(){}
+
+gr_complex
+gr_feval_cc::eval(gr_complex x)
+{
+  return 0;
+}
+
+gr_complex
+gr_feval_cc::calleval(gr_complex x)
+{
+  return eval(x);
+}
+
+// ----------------------------------------------------------------
+
+gr_feval_ll::~gr_feval_ll(){}
+
+long
+gr_feval_ll::eval(long x)
+{
+  return 0;
+}
+
+long
+gr_feval_ll::calleval(long x)
+{
+  return eval(x);
+}
+
+// ----------------------------------------------------------------
+
+gr_feval::~gr_feval(){}
+
+void
+gr_feval::eval(void)
+{
+  // nop
+}
+
+void
+gr_feval::calleval(void)
+{
+  eval();
+}
+
+// ----------------------------------------------------------------
+
+gr_feval_p::~gr_feval_p(){}
+
+void
+gr_feval_p::eval(pmt::pmt_t x)
+{
+  // nop
+}
+
+void
+gr_feval_p::calleval(pmt::pmt_t x)
+{
+  eval(x);
+}
+
+/*
+ * Trivial examples showing C++ (transparently) calling Python
+ */
+double
+gr_feval_dd_example(gr_feval_dd *f, double x)
+{
+  return f->calleval(x);
+}
+
+gr_complex
+gr_feval_cc_example(gr_feval_cc *f, gr_complex x)
+{
+  return f->calleval(x);
+}
+
+long
+gr_feval_ll_example(gr_feval_ll *f, long x)
+{
+  return f->calleval(x);
+}
+
+void
+gr_feval_example(gr_feval *f)
+{
+  f->calleval();
+}