Add support for boost.decimal

Author: asfernandes

CMakeLists.txt

@@ -68,6 +68,11 @@ if(FB_CPP_USE_BOOST_MULTIPRECISION)
 	set(FB_CPP_USE_BOOST_MULTIPRECISION_VALUE 1)
 endif()
 
+set(FB_CPP_USE_BOOST_DECIMAL_VALUE 0)
+if(FB_CPP_USE_BOOST_DECIMAL)
+	set(FB_CPP_USE_BOOST_DECIMAL_VALUE 1)
+endif()
+
 
 include(CMakePackageConfigHelpers)
 write_basic_package_version_file(

README.md

@@ -18,7 +18,8 @@ It wraps the Firebird C++ API with RAII principles, smart pointers, and modern C
 - **RAII**: Automatic resource management with smart pointers
 - **Type Safety**: Strong typing for database operations
 - **Exception Safety**: Proper error handling with exceptions
-- **Boost Integration**: Optional Boost.DLL for loading fbclient and Boost.Multiprecision support for large numbers
+- **Boost Integration**: Optional Boost.DLL for loading fbclient, Boost.Multiprecision support for large numbers, and
+  Boost.Decimal support for decimal floating-point values
 
 ## Quick Start
 
@@ -102,6 +103,7 @@ Or add it to your `vcpkg.json` manifest:
 The default features are:
 - `boost-dll`: Enable Boost.DLL support for runtime dynamic loading of Firebird client library
 - `boost-multiprecision`: Enable Boost.Multiprecision support for INT128 and DECFLOAT types
+- `boost-decimal`: Enable Boost.Decimal support for DECFLOAT types
 
 ## Building
 

cmake/fb-cppConfig.cmake.in

@@ -6,6 +6,7 @@ find_dependency(firebird CONFIG)
 
 set(_fb_cpp_use_boost_dll "@FB_CPP_USE_BOOST_DLL_VALUE@")
 set(_fb_cpp_use_boost_multiprecision "@FB_CPP_USE_BOOST_MULTIPRECISION_VALUE@")
+set(_fb_cpp_use_boost_decimal "@FB_CPP_USE_BOOST_DECIMAL_VALUE@")
 
 if(_fb_cpp_use_boost_dll)
 	find_dependency(Boost COMPONENTS dll)
@@ -15,9 +16,14 @@ if(_fb_cpp_use_boost_multiprecision)
 	find_dependency(Boost COMPONENTS multiprecision)
 endif()
 
+if(_fb_cpp_use_boost_decimal)
+	find_dependency(Boost COMPONENTS decimal)
+endif()
+
 include("${CMAKE_CURRENT_LIST_DIR}/fb-cppTargets.cmake")
 
 unset(_fb_cpp_use_boost_dll)
 unset(_fb_cpp_use_boost_multiprecision)
+unset(_fb_cpp_use_boost_decimal)
 
 check_required_components(fb-cpp)

doc/Doxyfile

@@ -195,6 +195,7 @@ SEARCH_INCLUDES        = YES
 INCLUDE_PATH           =
 INCLUDE_FILE_PATTERNS  =
 PREDEFINED             = FB_CPP_USE_BOOST_MULTIPRECISION=1 \
+                         FB_CPP_USE_BOOST_DECIMAL=1 \
                          FB_CPP_USE_BOOST_DLL=1
 EXPAND_AS_DEFINED      =
 SKIP_FUNCTION_MACROS   = YES

src/fb-cpp/CMakeLists.txt

@@ -22,6 +22,16 @@ option(FB_CPP_USE_BOOST_MULTIPRECISION "Enable Boost.Multiprecision helpers for
 	${_fb_cpp_use_boost_multiprecision_default})
 unset(_fb_cpp_use_boost_multiprecision_default)
 
+set(_fb_cpp_use_boost_decimal_default ON)
+if(DEFINED VCPKG_INSTALLED_DIR AND DEFINED VCPKG_TARGET_TRIPLET)
+	if(NOT EXISTS "${VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/share/boost-decimal")
+		set(_fb_cpp_use_boost_decimal_default OFF)
+	endif()
+endif()
+option(FB_CPP_USE_BOOST_DECIMAL "Enable Boost.Decimal helpers for DECFLOAT types"
+	${_fb_cpp_use_boost_decimal_default})
+unset(_fb_cpp_use_boost_decimal_default)
+
 file(GLOB_RECURSE SRC
 	"*.h"
 	"*.cpp"
@@ -34,6 +44,9 @@ endif()
 if(FB_CPP_USE_BOOST_MULTIPRECISION)
 	list(APPEND _fb_cpp_boost_components multiprecision)
 endif()
+if(FB_CPP_USE_BOOST_DECIMAL)
+	list(APPEND _fb_cpp_boost_components decimal)
+endif()
 
 if(_fb_cpp_boost_components)
 	find_package(Boost REQUIRED
@@ -77,10 +90,19 @@ if(NOT DEFINED FB_CPP_USE_BOOST_MULTIPRECISION_VALUE)
 	endif()
 endif()
 
+if(NOT DEFINED FB_CPP_USE_BOOST_DECIMAL_VALUE)
+	if(FB_CPP_USE_BOOST_DECIMAL)
+		set(FB_CPP_USE_BOOST_DECIMAL_VALUE 1)
+	else()
+		set(FB_CPP_USE_BOOST_DECIMAL_VALUE 0)
+	endif()
+endif()
+
 target_compile_definitions(${PROJECT_NAME}
 	PUBLIC
 		FB_CPP_USE_BOOST_DLL=${FB_CPP_USE_BOOST_DLL_VALUE}
 		FB_CPP_USE_BOOST_MULTIPRECISION=${FB_CPP_USE_BOOST_MULTIPRECISION_VALUE}
+		FB_CPP_USE_BOOST_DECIMAL=${FB_CPP_USE_BOOST_DECIMAL_VALUE}
 )
 
 target_link_libraries(${PROJECT_NAME}
@@ -100,6 +122,12 @@ if(FB_CPP_USE_BOOST_MULTIPRECISION)
 	)
 endif()
 
+if(FB_CPP_USE_BOOST_DECIMAL)
+	target_link_libraries(${PROJECT_NAME}
+		PUBLIC Boost::decimal
+	)
+endif()
+
 unset(_fb_cpp_boost_components)
 
 file(GLOB_RECURSE HEADER_FILES