From 0a5342a715e81659e7b027434e25834ead8f8a16 Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Fri, 28 Mar 2014 16:07:53 +0100
Subject: uhd: Added a cast routine from hex string -> anything

---
 host/include/uhd/utils/CMakeLists.txt |  1 +
 host/include/uhd/utils/cast.hpp       | 43 +++++++++++++++++++++++++++++++++++
 host/tests/CMakeLists.txt             |  1 +
 host/tests/cast_test.cpp              | 33 +++++++++++++++++++++++++++
 4 files changed, 78 insertions(+)
 create mode 100644 host/include/uhd/utils/cast.hpp
 create mode 100644 host/tests/cast_test.cpp

diff --git a/host/include/uhd/utils/CMakeLists.txt b/host/include/uhd/utils/CMakeLists.txt
index c0991b3ce..e9633286f 100644
--- a/host/include/uhd/utils/CMakeLists.txt
+++ b/host/include/uhd/utils/CMakeLists.txt
@@ -22,6 +22,7 @@ UHD_INSTALL(FILES
     atomic.hpp
     byteswap.hpp
     byteswap.ipp
+    cast.hpp
     csv.hpp
     gain_group.hpp
     images.hpp
diff --git a/host/include/uhd/utils/cast.hpp b/host/include/uhd/utils/cast.hpp
new file mode 100644
index 000000000..9db92c526
--- /dev/null
+++ b/host/include/uhd/utils/cast.hpp
@@ -0,0 +1,43 @@
+//
+// Copyright 2014 Ettus Research LLC
+//
+// This program 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 of the License, or
+// (at your option) any later version.
+//
+// This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_UHD_UTILS_CAST_HPP
+#define INCLUDED_UHD_UTILS_CAST_HPP
+
+#include <uhd/config.hpp>
+#include <string>
+#include <sstream>
+
+namespace uhd{ namespace cast{
+    //! Convert a hexadecimal string into a value.
+    //
+    // Example:
+    //     boost::uint16_t x = hexstr_cast<boost::uint16_t>("0xDEADBEEF");
+    // Uses stringstream.
+    template<typename T> inline T hexstr_cast(const std::string &in)
+    {
+        T x;
+        std::stringstream ss;
+        ss << std::hex << in;
+        ss >> x;
+        return x;
+    }
+
+}} //namespace uhd::cast
+
+#endif /* INCLUDED_UHD_UTILS_CAST_HPP */
+
diff --git a/host/tests/CMakeLists.txt b/host/tests/CMakeLists.txt
index 2a40d0050..7c4815004 100644
--- a/host/tests/CMakeLists.txt
+++ b/host/tests/CMakeLists.txt
@@ -28,6 +28,7 @@ SET(test_sources
     buffer_test.cpp
     byteswap_test.cpp
     convert_test.cpp
+    cast_test.cpp
     dict_test.cpp
     error_test.cpp
     gain_group_test.cpp
diff --git a/host/tests/cast_test.cpp b/host/tests/cast_test.cpp
new file mode 100644
index 000000000..6b8a4c527
--- /dev/null
+++ b/host/tests/cast_test.cpp
@@ -0,0 +1,33 @@
+//
+// Copyright 2014 Ettus Research LLC
+//
+// This program 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 of the License, or
+// (at your option) any later version.
+//
+// This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <iostream>
+#include <boost/test/unit_test.hpp>
+#include <boost/cstdint.hpp>
+#include <uhd/utils/cast.hpp>
+
+BOOST_AUTO_TEST_CASE(test_mac_addr){
+    std::string in = "0x0100";
+    boost::uint16_t correct_result = 256;
+    boost::uint16_t x = uhd::cast::hexstr_cast<boost::uint16_t>(in);
+    //boost::uint16_t x = uhd::cast::hexstr_cast(in);
+    std::cout
+        << "Testing hex -> uint16_t conversion. "
+        << in << " == " << std::hex << x << "?" << std::endl;
+    BOOST_CHECK_EQUAL(x, correct_result);
+}
+
-- 
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