Add symbolrate as alias unit for frequency.

src/include/units/data/data.h

@@ -24,4 +24,5 @@
 
 #include <units/data/base/information.h>
 #include <units/data/derived/bitrate.h>
+#include <units/data/derived/symbolrate.h>
 #include <units/data/prefixes.h>

src/include/units/data/derived/symbolrate.h

@@ -0,0 +1,76 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2021 Christoph Seitz
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#pragma once
+
+#include <units/physical/dimensions/frequency.h>
+#include <units/physical/si/derived/frequency.h>
+#include <units/quantity.h>
+
+namespace units::data {
+
+namespace si = units::physical::si;
+
+struct baud : alias_unit<si::hertz, "Bd", si::prefix> {};
+struct kilobaud : prefixed_alias_unit<si::kilohertz, si::kilo, baud> {};
+struct megabaud : prefixed_alias_unit<si::megahertz, si::mega, baud> {};
+struct gigabaud : prefixed_alias_unit<si::gigahertz, si::giga, baud> {};
+struct terabaud : prefixed_alias_unit<si::terahertz, si::tera, baud> {};
+struct petabaud : prefixed_alias_unit<si::petahertz, si::peta, baud> {};
+
+template<UnitOf<si::dim_frequency> U, QuantityValue Rep = double>
+using symbolrate = quantity<si::dim_frequency, U, Rep>;
+
+inline namespace literals {
+
+// Bd
+constexpr auto operator"" _q_Bd(unsigned long long l) { return symbolrate<baud, std::int64_t>(l); }
+
+// kBd
+constexpr auto operator"" _q_kBd(unsigned long long l) { return symbolrate<kilobaud, std::int64_t>(l); }
+
+// MBd
+constexpr auto operator"" _q_MBd(unsigned long long l) { return symbolrate<megabaud, std::int64_t>(l); }
+
+// GBd
+constexpr auto operator"" _q_GBd(unsigned long long l) { return symbolrate<gigabaud, std::int64_t>(l); }
+
+// TBd
+constexpr auto operator"" _q_TBd(unsigned long long l) { return symbolrate<terabaud, std::int64_t>(l); }
+
+// PBd
+constexpr auto operator"" _q_PBd(unsigned long long l) { return symbolrate<petabaud, std::int64_t>(l); }
+
+}  // namespace literals
+
+namespace unit_constants {
+
+inline constexpr auto Bd = symbolrate<baud, one_rep>{};
+inline constexpr auto kBd = symbolrate<kilobaud, one_rep>{};
+inline constexpr auto MBd = symbolrate<megabaud, one_rep>{};
+inline constexpr auto GBd = symbolrate<gigabaud, one_rep>{};
+inline constexpr auto TBd = symbolrate<terabaud, one_rep>{};
+inline constexpr auto PBd = symbolrate<petabaud, one_rep>{};
+
+}  // namespace unit_constants
+
+}  // namespace units::data

test/unit_test/runtime/digital_info_test.cpp

@@ -20,9 +20,10 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
-#include <units/data/data.h>
-#include <units/quantity_io.h>
 #include <catch2/catch.hpp>
+#include <units/data/data.h>
+#include <units/format.h>
+#include <units/quantity_io.h>
 #include <sstream>
 
 using namespace units::data;
@@ -58,3 +59,15 @@ TEST_CASE("operator<< on a data quantity", "[text][ostream]")
     }
   }
 }
+
+TEST_CASE("fmt::format on data unit symbols", "[text][fmt]")
+{
+  SECTION("symbolrate") 
+  {
+    CHECK(fmt::format("{}", 1_q_Bd) == "1 Bd");
+    CHECK(fmt::format("{}", 1_q_kBd) == "1 kBd");
+    CHECK(fmt::format("{}", 1_q_MBd) == "1 MBd");
+    CHECK(fmt::format("{}", 1_q_GBd) == "1 GBd");
+    CHECK(fmt::format("{}", 1_q_TBd) == "1 TBd");
+  }
+}