README change

1 files changed, 49 insertions, 0 deletions

diff --git a/gnuradio-core/src/lib/general/gr_transcendental.h b/gnuradio-core/src/lib/general/gr_transcendental.h
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+++ b/gnuradio-core/src/lib/general/gr_transcendental.h
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+/*
+ * Copyright 2011 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.
+ */
+
+#ifndef INCLUDED_GR_TRANSCENDENTAL_H
+#define INCLUDED_GR_TRANSCENDENTAL_H
+
+#include <gr_core_api.h>
+#include <gr_sync_block.h>
+#include <string>
+
+/*!
+ * \brief A block that performs various transcendental math operations.
+ *
+ * Possible function names can be found in the cmath library.
+ * IO may be either complex or real, double or single precision.
+ *
+ * Possible type strings: float, double, complex_float, complex_double
+ *
+ * output[i] = trans_fcn(input[i])
+ */
+class GR_CORE_API gr_transcendental : virtual public gr_sync_block{
+public:
+    typedef boost::shared_ptr<gr_transcendental> sptr;
+};
+
+GR_CORE_API gr_transcendental::sptr gr_make_transcendental(
+    const std::string &name,
+    const std::string &type = "float"
+);
+
+#endif /* INCLUDED_GR_TRANSCENDENTAL_H */