CMakeLists.txt

cmake_minimum_required(VERSION 3.1)

project(FlexFloat)

set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_STANDARD 11)

if(NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE Release)
endif(NOT CMAKE_BUILD_TYPE)

#SET(CMAKE_C_COMPILER "/usr/bin/gcc-7")
#SET(CMAKE_CXX_COMPILER "/usr/bin/g++-7")

#SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -flto")
#SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
#set(CMAKE_AR "gcc-ar-7")
#SET(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> qcs <TARGET> <LINK_FLAGS> <OBJECTS>")
#SET(CMAKE_C_ARCHIVE_FINISH   true)

set(CMAKE_C_FLAGS_DEBUG "-O0 -g3 -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=0")
set(CMAKE_C_FLAGS_RELEASE "-O3 -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=0 -DNDEBUG")
set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g3 -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=0")
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=0 -DNDEBUG")

### Create a static library

set(library_SOURCES
    src/flexfloat.c
)

add_library(flexfloat STATIC ${library_SOURCES})

target_include_directories(flexfloat PUBLIC ${PROJECT_SOURCE_DIR}/include)

option(SINGLE_BACKEND "Use single-precision type (float) as a backend type instead of double precision" OFF)
option(QUAD_BACKEND "Use quad-precision type (_Float128) as a backend type instead of double precision" OFF)
option(DISABLE_ROUNDING "Disable the library support to IEEE rounding modes (truncation is always applied)" OFF)
option(ENABLE_FLAGS "Enable support for floating-point exception flags" OFF)
option(ENABLE_STATS "Enable collection of statistics" OFF)
option(ENABLE_TRACKING "Enable track of error accumulation on program variables" OFF)


if(SINGLE_BACKEND)
    file(WRITE include/flexfloat_config.h "#define FLEXFLOAT_ON_SINGLE\n" )
elseif(QUAD_BACKEND)
    file(WRITE include/flexfloat_config.h "#define FLEXFLOAT_ON_QUAD\n" )
else()
    file(WRITE include/flexfloat_config.h "#define FLEXFLOAT_ON_DOUBLE\n" )
endif()

if(DISABLE_ROUNDING)
    file(APPEND include/flexfloat_config.h "#define FLEXFLOAT_NO_ROUNDING\n" )
endif()

if(ENABLE_FLAGS)
    file(APPEND include/flexfloat_config.h "#define FLEXFLOAT_FLAGS\n" )
endif()

if(ENABLE_STATS)
    file(APPEND include/flexfloat_config.h "#define FLEXFLOAT_STATS\n" )
endif()

if(ENABLE_TRACKING)
    file(APPEND include/flexfloat_config.h "#define FLEXFLOAT_TRACKING\n" )
endif()


### Unit testing

option(BUILD_TESTS "Enable unit testing of FlexFloat" ON)

if(BUILD_TESTS)
    enable_testing()
    add_subdirectory(test)
endif()

### Examples

option(BUILD_EXAMPLES "Build FlexFloat examples" ON)

if(BUILD_EXAMPLES)
    add_subdirectory(examples)
endif()