/////////////////////////////////////////////////////////////////////////////// // Copyright Christopher Kormanyos 2014. // Copyright John Maddock 2014. // Copyright Paul Bristow 2014. // Distributed under the Boost Software License, // Version 1.0. (See accompanying file LICENSE_1_0.txt // or copy at http://www.boost.org/LICENSE_1_0.txt) // // implements floating-point typedefs having // specified widths, as described in N3626 (proposed for C++14). // See: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3626.pdf #ifndef _BOOST_CSTDFLOAT_2014_01_09_HPP_ #define _BOOST_CSTDFLOAT_2014_01_09_HPP_ #include #include #include #include // This is the beginning of the preamble. // In this preamble, the preprocessor is used to query certain // preprocessor definitions from . Based on the results // of these queries, an attempt is made to automatically detect // the presence of built-in floating-point types having specified // widths. These are *thought* to be conformant with IEEE-754, // whereby an unequivocal test based on numeric_limits follows below. // In addition, macros that are used for initializing floating-point // literal values and some basic min/max values are defined. // First, we will pre-load certain preprocessor definitions // with a dummy value. #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 0 #define BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE 0 #define BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE 0 #define BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE 0 #define BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE 0 #define BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE 0 // Ensure that the compiler has a radix-2 floating-point representation. #if (!defined(FLT_RADIX) || ((defined(FLT_RADIX) && (FLT_RADIX != 2)))) #error The compiler does not support radix-2 floating-point types required for . #endif // Check if built-in float is equivalent to float16_t, float24_t, float32_t, float64_t, float80_t, or float128_t. #if(defined(FLT_MANT_DIG) && defined(FLT_MAX_EXP)) #if ((FLT_MANT_DIG == 11) && (FLT_MAX_EXP == 16) && (BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT16_NATIVE_TYPE float #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 16 #undef BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE 1 #define BOOST_FLOAT16_C(x) (x ## F) #define BOOST_FLOAT_16_MIN FLT_MIN #define BOOST_FLOAT_16_MAX FLT_MAX #elif((FLT_MANT_DIG == 24) && (FLT_MAX_EXP == 128) && (BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT32_NATIVE_TYPE float #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 32 #undef BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE 1 #define BOOST_FLOAT32_C(x) (x ## F) #define BOOST_FLOAT_32_MIN FLT_MIN #define BOOST_FLOAT_32_MAX FLT_MAX #elif((FLT_MANT_DIG == 53) && (FLT_MAX_EXP == 1024) && (BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT64_NATIVE_TYPE float #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 64 #undef BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE 1 #define BOOST_FLOAT64_C(x) (x ## F) #define BOOST_FLOAT_64_MIN FLT_MIN #define BOOST_FLOAT_64_MAX FLT_MAX #elif((FLT_MANT_DIG == 63) && (FLT_MAX_EXP == 16384) && (BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT80_NATIVE_TYPE float #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 80 #undef BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE 1 #define BOOST_FLOAT80_C(x) (x ## F) #define BOOST_FLOAT_80_MIN FLT_MIN #define BOOST_FLOAT_80_MAX FLT_MAX #elif((FLT_MANT_DIG == 113) && (FLT_MAX_EXP == 16384) && (BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT128_NATIVE_TYPE float #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 128 #undef BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE 1 #define BOOST_FLOAT128_C(x) (x ## F) #define BOOST_FLOAT_128_MIN FLT_MIN #define BOOST_FLOAT_128_MAX FLT_MAX #endif #endif // Check if built-in double is equivalent to float16_t, float24_t, float32_t, float64_t, float80_t, or float128_t. #if(defined(DBL_MANT_DIG) && defined(DBL_MAX_EXP)) #if ((DBL_MANT_DIG == 11) && (DBL_MAX_EXP == 16) && (BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT16_NATIVE_TYPE double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 16 #undef BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE 1 #define BOOST_FLOAT16_C(x) (x) #define BOOST_FLOAT_16_MIN DBL_MIN #define BOOST_FLOAT_16_MAX DBL_MAX #elif((DBL_MANT_DIG == 24) && (DBL_MAX_EXP == 128) && (BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT32_NATIVE_TYPE double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 32 #undef BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE 1 #define BOOST_FLOAT32_C(x) (x) #define BOOST_FLOAT_32_MIN DBL_MIN #define BOOST_FLOAT_32_MAX DBL_MAX #elif((DBL_MANT_DIG == 53) && (DBL_MAX_EXP == 1024) && (BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT64_NATIVE_TYPE double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 64 #undef BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE 1 #define BOOST_FLOAT64_C(x) (x) #define BOOST_FLOAT_64_MIN DBL_MIN #define BOOST_FLOAT_64_MAX DBL_MAX #elif((DBL_MANT_DIG == 63) && (DBL_MAX_EXP == 16384) && (BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT80_NATIVE_TYPE double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 80 #undef BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE 1 #define BOOST_FLOAT80_C(x) (x) #define BOOST_FLOAT_80_MIN DBL_MIN #define BOOST_FLOAT_80_MAX DBL_MAX #elif((DBL_MANT_DIG == 113) && (DBL_MAX_EXP == 16384) && (BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT128_NATIVE_TYPE double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 128 #undef BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE 1 #define BOOST_FLOAT128_C(x) (x) #define BOOST_FLOAT_128_MIN DBL_MIN #define BOOST_FLOAT_128_MAX DBL_MAX #endif #endif // Check if built-in long double is equivalent to float16_t, float24_t, float32_t, float64_t, float80_t, or float128_t. #if(defined(LDBL_MANT_DIG) && defined(LDBL_MAX_EXP)) #if ((LDBL_MANT_DIG == 11) && (LDBL_MAX_EXP == 16) && (BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT16_NATIVE_TYPE long double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 16 #undef BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE 1 #define BOOST_FLOAT16_C(x) (x ## L) #define BOOST_FLOAT_16_MIN LDBL_MIN #define BOOST_FLOAT_16_MAX LDBL_MAX #elif((LDBL_MANT_DIG == 24) && (LDBL_MAX_EXP == 128) && (BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT32_NATIVE_TYPE long double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 32 #undef BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE 1 #define BOOST_FLOAT32_C(x) (x ## L) #define BOOST_FLOAT_32_MIN LDBL_MIN #define BOOST_FLOAT_32_MAX LDBL_MAX #elif((LDBL_MANT_DIG == 53) && (LDBL_MAX_EXP == 1024) && (BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT64_NATIVE_TYPE long double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 64 #undef BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE 1 #define BOOST_FLOAT64_C(x) (x ## L) #define BOOST_FLOAT_64_MIN LDBL_MIN #define BOOST_FLOAT_64_MAX LDBL_MAX #elif((LDBL_MANT_DIG == 63) && (LDBL_MAX_EXP == 16384) && (BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT80_NATIVE_TYPE long double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 80 #undef BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE 1 #define BOOST_FLOAT80_C(x) (x ## L) #define BOOST_FLOAT_80_MIN LDBL_MIN #define BOOST_FLOAT_80_MAX LDBL_MAX #elif((LDBL_MANT_DIG == 113) && (LDBL_MAX_EXP == 16384) && (BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE == 0)) #define BOOST_CSTDFLOAT_FLOAT128_NATIVE_TYPE long double #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 128 #undef BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE 1 #define BOOST_FLOAT128_C(x) (x ## L) #define BOOST_FLOAT_128_MIN LDBL_MIN #define BOOST_FLOAT_128_MAX LDBL_MAX #endif #endif // Check if __float128 from GCC's libquadmath or ICC's /Qlong-double // flag is supported. // Here, we use the BOOST_MATH_USE_FLOAT128 pre-processor // definition from . #if(BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE == 0) && defined(BOOST_MATH_USE_FLOAT128) #define BOOST_CSTDFLOAT_FLOAT128_NATIVE_TYPE __float128 #undef BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH #define BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH 128 #undef BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE #define BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE 1 #define BOOST_FLOAT128_C(x) (x ## Q) #define BOOST_FLOAT_128_MIN FLT128_MIN #define BOOST_FLOAT_128_MAX FLT128_MAX #endif // This is the end of the preamble. Now we use the results // of the queries that have been obtained in the preamble. // Ensure that the compiler has any suitable floating-point type whatsoever. #if ( (BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 0) \ && (BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE == 0) \ && (BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE == 0) \ && (BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE == 0) \ && (BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE == 0)) #error The compiler does not support any of the floating-point types required for . #endif // The following section contains the various min/max macros // for the *leastN and *fastN types. #if(BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 1) #define BOOST_FLOAT_FAST16_MIN BOOST_FLOAT_16_MIN #define BOOST_FLOAT_LEAST16_MIN BOOST_FLOAT_16_MIN #define BOOST_FLOAT_FAST16_MAX BOOST_FLOAT_16_MAX #define BOOST_FLOAT_LEAST16_MAX BOOST_FLOAT_16_MAX #endif #if(BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE == 1) #define BOOST_FLOAT_FAST32_MIN BOOST_FLOAT_32_MIN #define BOOST_FLOAT_LEAST32_MIN BOOST_FLOAT_32_MIN #define BOOST_FLOAT_FAST32_MAX BOOST_FLOAT_32_MAX #define BOOST_FLOAT_LEAST32_MAX BOOST_FLOAT_32_MAX #endif #if(BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE == 1) #define BOOST_FLOAT_FAST64_MIN BOOST_FLOAT_64_MIN #define BOOST_FLOAT_LEAST64_MIN BOOST_FLOAT_64_MIN #define BOOST_FLOAT_FAST64_MAX BOOST_FLOAT_64_MAX #define BOOST_FLOAT_LEAST64_MAX BOOST_FLOAT_64_MAX #endif #if(BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE == 1) #define BOOST_FLOAT_FAST80_MIN BOOST_FLOAT_80_MIN #define BOOST_FLOAT_LEAST80_MIN BOOST_FLOAT_80_MIN #define BOOST_FLOAT_FAST80_MAX BOOST_FLOAT_80_MAX #define BOOST_FLOAT_LEAST80_MAX BOOST_FLOAT_80_MAX #endif #define BOOST_NO_FLOAT128_T #if(BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE == 1) #undef BOOST_NO_FLOAT128_T #define BOOST_FLOAT_FAST128_MIN BOOST_FLOAT_128_MIN #define BOOST_FLOAT_LEAST128_MIN BOOST_FLOAT_128_MIN #define BOOST_FLOAT_FAST128_MAX BOOST_FLOAT_128_MAX #define BOOST_FLOAT_LEAST128_MAX BOOST_FLOAT_128_MAX #endif // The following section contains the various min/max macros // for the *floatmax types. #if (BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 16) #define BOOST_FLOATMAX_C(x) BOOST_FLOAT16_C(x) #define BOOST_FLOATMAX_MIN BOOST_FLOAT_16_MIN #define BOOST_FLOATMAX_MAX BOOST_FLOAT_16_MAX #elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 32) #define BOOST_FLOATMAX_C(x) BOOST_FLOAT32_C(x) #define BOOST_FLOATMAX_MIN BOOST_FLOAT_32_MIN #define BOOST_FLOATMAX_MAX BOOST_FLOAT_32_MAX #elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 64) #define BOOST_FLOATMAX_C(x) BOOST_FLOAT64_C(x) #define BOOST_FLOATMAX_MIN BOOST_FLOAT_64_MIN #define BOOST_FLOATMAX_MAX BOOST_FLOAT_64_MAX #elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 80) #define BOOST_FLOATMAX_C(x) BOOST_FLOAT80_C(x) #define BOOST_FLOATMAX_MIN BOOST_FLOAT_80_MIN #define BOOST_FLOATMAX_MAX BOOST_FLOAT_80_MAX #elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 128) #define BOOST_FLOATMAX_C(x) BOOST_FLOAT128_C(x) #define BOOST_FLOATMAX_MIN BOOST_FLOAT_128_MIN #define BOOST_FLOATMAX_MAX BOOST_FLOAT_128_MAX #else #error The maximum available floating-point width for is undefined. #endif // Here, we define the floating-point typedefs having specified widths. // The types are defined in the namespace boost. // For simplicity, the least and fast types are type defined identically // as the corresponding fixed-width type. This behavior can, however, // be modified in order to be optimized for a given compiler implementation. // In addition, a clear assessment of IEEE-754 comformance is carried out // using compile-time assertion. namespace boost { #if(BOOST_CSTDFLOAT_HAS_FLOAT16_NATIVE_TYPE == 1) typedef BOOST_CSTDFLOAT_FLOAT16_NATIVE_TYPE float16_t; typedef float16_t float_fast16_t; typedef float16_t float_least16_t; BOOST_STATIC_ASSERT(std::numeric_limits::is_iec559 == true); BOOST_STATIC_ASSERT(std::numeric_limits::radix == 2); BOOST_STATIC_ASSERT(std::numeric_limits::digits == 11); BOOST_STATIC_ASSERT(std::numeric_limits::max_exponent == 16); #endif #if(BOOST_CSTDFLOAT_HAS_FLOAT32_NATIVE_TYPE == 1) typedef BOOST_CSTDFLOAT_FLOAT32_NATIVE_TYPE float32_t; typedef float32_t float_fast32_t; typedef float32_t float_least32_t; BOOST_STATIC_ASSERT(std::numeric_limits::is_iec559 == true); BOOST_STATIC_ASSERT(std::numeric_limits::radix == 2); BOOST_STATIC_ASSERT(std::numeric_limits::digits == 24); BOOST_STATIC_ASSERT(std::numeric_limits::max_exponent == 128); #endif #if(BOOST_CSTDFLOAT_HAS_FLOAT64_NATIVE_TYPE == 1) typedef BOOST_CSTDFLOAT_FLOAT64_NATIVE_TYPE float64_t; typedef float64_t float_fast64_t; typedef float64_t float_least64_t; BOOST_STATIC_ASSERT(std::numeric_limits::is_iec559 == true); BOOST_STATIC_ASSERT(std::numeric_limits::radix == 2); BOOST_STATIC_ASSERT(std::numeric_limits::digits == 53); BOOST_STATIC_ASSERT(std::numeric_limits::max_exponent == 1024); #endif #if(BOOST_CSTDFLOAT_HAS_FLOAT80_NATIVE_TYPE == 1) typedef BOOST_CSTDFLOAT_FLOAT80_NATIVE_TYPE float80_t; typedef float80_t float_fast80_t; typedef float80_t float_least80_t; BOOST_STATIC_ASSERT(std::numeric_limits::is_iec559 == true); BOOST_STATIC_ASSERT(std::numeric_limits::radix == 2); BOOST_STATIC_ASSERT(std::numeric_limits::digits == 63); BOOST_STATIC_ASSERT(std::numeric_limits::max_exponent == 16384); #endif #if(BOOST_CSTDFLOAT_HAS_FLOAT128_NATIVE_TYPE == 1) typedef BOOST_CSTDFLOAT_FLOAT128_NATIVE_TYPE float128_t; typedef float128_t float_fast128_t; typedef float128_t float_least128_t; BOOST_STATIC_ASSERT(std::numeric_limits::is_iec559 == true); BOOST_STATIC_ASSERT(std::numeric_limits::radix == 2); BOOST_STATIC_ASSERT(std::numeric_limits::digits == 113); BOOST_STATIC_ASSERT(std::numeric_limits::max_exponent == 16384); #endif #if (BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 16) typedef float16_t floatmax_t; #elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 32) typedef float32_t floatmax_t; #elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 64) typedef float64_t floatmax_t; #elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 80) typedef float80_t floatmax_t; #elif(BOOST_CSTDFLOAT_MAXIMUM_AVAILABLE_WIDTH == 128) typedef float128_t floatmax_t; #else #error The maximum available floating-point width for is undefined. #endif } // namespace boost #endif // _BOOST_CSTDFLOAT_2014_01_09_HPP_