Fix synthesis and includes bugs

- `catch_common` target renamed `catch_common_${PROJECT_NAME}` to avoid
  conflict with other `catch_common` target when included in a top
  cmake project.
- `scale_cordic(double)` moved outside of the SOFTWARE region, as it can
  be useful in Xilinx testbench and is not synthetized anyway.
- A little modification for debbuging purpose, out_stream can be used to
  dump results in a file if not commented out.

CMakeLists.txt

@@ -189,18 +189,18 @@ if (ENABLE_TESTING)
   )
   configure_file (sources/tb/cordic_rom_tb.cpp.in ${TB_SOURCE} @ONLY)
 
-  add_library (catch_common OBJECT sources/tb/main_catch2.cpp)
-  target_link_libraries (catch_common PUBLIC Catch2::Catch2)
+  add_library (catch_common_${PROJECT_NAME} OBJECT sources/tb/main_catch2.cpp)
+  target_link_libraries (catch_common_${PROJECT_NAME} PUBLIC Catch2::Catch2)
 
   file (GLOB ALL_ROM_TB_SOURCES sources/tb/cordic_rom_*.cpp)
   list (REMOVE_ITEM ALL_ROM_TB_SOURCES ${TB_SOURCE})
 
   add_executable (cordic_tb sources/tb/cordic_tb.cpp ${TB_SOURCE} ${ALL_ROM_TB_SOURCES})
-  target_link_libraries (cordic_tb PUBLIC cordic catch_common)
+  target_link_libraries (cordic_tb PRIVATE cordic catch_common_${PROJECT_NAME})
 
   include (CTest)
   include (Catch)
-  catch_discover_tests (cordic_tb)
+  catch_discover_tests (cordic_tb WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/data)
 endif ()
 
 file (GLOB ALL_ROM_HEADERS sources/CordicRoms/cordic_rom_*.hpp)

sources/CCordicRotateConstexpr/CCordicRotateConstexpr.hpp

@@ -65,6 +65,10 @@ public:
         return in * kn_i / 16U;
     }
 
+    static constexpr double scale_cordic(double in) {
+        return in * kn_values[nb_stages - 1];
+    }
+
 #if !defined(__SYNTHESIS__) && defined(SOFTWARE)
     static constexpr std::complex<int64_t> cordic(std::complex<int64_t> x_in,
                                                   uint64_t              counter) {
@@ -92,10 +96,6 @@ public:
         return {(A), (B)};
     }
 
-    static constexpr double scale_cordic(double in) {
-        return in * kn_values[nb_stages - 1];
-    }
-
     static constexpr std::complex<double> cordic(std::complex<double> x_in,
                                                  uint64_t             counter) {
         const std::complex<int64_t> fx_x_in(int64_t(x_in.real() * double(in_scale_factor)),

sources/tb/cordic_tb.cpp

@@ -206,7 +206,7 @@ TEST_CASE("ROM-based Cordic works with AP-Types", "[CORDIC]") {
         fclose(INPUT);
 
         // Save the results to a file
-        // out_stream.open("results_ap.dat");
+        // ofstream out_stream("results_ap.dat");
         // FILE * romf = fopen("rom.dat", "w");
 
         constexpr double abs_margin = double(1 << (cordic.Out_I - 1)) * 2. / 100.;