// Copyright Paul A. Bristow 2013 // Use, modification and distribution are subject to 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) // Program to list all numeric_limits items for any type to a file in Quickbook format. // C standard http://www.open-std.org/jtc1/sc22/wg11/docs/n507.pdf // SC22/WG11 N507 DRAFT INTERNATIONAL ISO/IEC STANDARD WD 10967-1 // Information technology Language independent arithmetic Part 1: Integer and Floating point arithmetic /* E.3 C++ The programming language C++ is defined by ISO/IEC 14882:1998, Programming languages C++ [18]. An implementation should follow all the requirements of LIA-1 unless otherwise specified by this language binding. */ // http://754r.ucbtest.org/standards/754.pdf // http://www.cesura17.net/~will/Professional/Research/Papers/retrospective.pdf // http://www.exploringbinary.com/using-integers-to-check-a-floating-point-approximation/ // http://stackoverflow.com/questions/12466745/how-to-convert-float-to-doubleboth-stored-in-ieee-754-representation-without-loss #ifdef _MSC_VER # pragma warning (disable : 4127) // conditional expression is constant. # pragma warning (disable : 4100) // unreferenced formal parameter. #endif #include <iostream> #include <iomanip> #include <string> #include <sstream> #include <fstream> #include <limits> // numeric_limits #include <typeinfo> #include <boost/version.hpp> #include <boost/config.hpp> // May need extra includes for other types, for example: #include <boost/multiprecision/cpp_dec_float.hpp> // is decimal. #include <boost/multiprecision/cpp_bin_float.hpp> // is binary. // Assume that this will be run on MSVC to get the 32 or 64 bit info. #ifdef _WIN32 std::string bits32_64 = "32"; std::string filename = "numeric_limits_32_tables.qbk"; #else std::string bits32_64 = "64"; std::string filename = "numeric_limits_64_tables.qbk"; #endif #ifdef INT32_T_MAX int i = INT256_T_MAX; #endif std::array<std::string, 16> integer_type_names = { "bool", "char", "unsigned char", "char16_t", "char32_t", "short", "unsigned short", "int", "unsigned int", "long", "unsigned long", "long long", "unsigned long long", "int32_t", //"uint32_t", "int64_t", //"uint64_t", "int128_t", //"uint128_t" // Too big? //"int256_t", //"uint256_t" //"int512_t" }; std::array<std::string, 6> float_type_names = { "function", "float", "double", "long double", "cpp_dec_50", "cpp_bin_128" }; // Table headings for integer constants. std::array<std::string, 8> integer_constant_heads = { "type", "signed", "bound", "modulo", "round", "radix", "digits", "digits10", // "max_digits10" }; // Table headings for integer functions. std::array<std::string, 2> integer_function_heads = { "max", // "lowest", assumes is same for all integer types, so not worth listing. "min" }; // Table headings for float constants. std::array<std::string, 12> float_constant_heads = { "type", // "signed", "exact", "bound", // "modulo", "round", "radix", "digits", "digits10", "max_digits10", "min_exp", "min_exp10", "max_exp", "max_exp10", "tiny", "trap" }; // Table headings for float functions. std::array<std::string, 10> float_function_heads = { "function", "max", "lowest", "min", "eps", "round", "infinity", "NaN", "sig_NaN", "denorm_min" }; std::string versions() { // Build a string of info about Boost, platform, STL, etc. std::stringstream mess; //mess << "\n" << "Program:\n\" " __FILE__ << "\"\n"; // \n is mis-interpreted! mess << "\n" << "Program:\n numeric_limits_qbk.cpp \n"; #ifdef __TIMESTAMP__ mess << __TIMESTAMP__; #endif mess << "\nBuildInfo:\n" " Platform " << BOOST_PLATFORM; mess << "\n Compiler " BOOST_COMPILER; #ifdef _MSC_FULL_VER mess << "\n MSVC version "<< BOOST_STRINGIZE(_MSC_FULL_VER) << "."; #endif mess << "\n STL " BOOST_STDLIB; mess << "\n Boost version " << BOOST_VERSION/100000 << "." << BOOST_VERSION/100 % 1000 << "." << BOOST_VERSION % 100 << std::endl; return mess.str(); } // std::string versions() template <typename T> void out_round_style(std::ostream& os) { //! Send short string describing STD::round_style to stream os. // os << "Round style is "; if (std::numeric_limits<T>::round_style == std::round_indeterminate) { os << "indeterminate" ; } else if (std::numeric_limits<T>::round_style == std::round_toward_zero) { os << "to zero" ; } else if (std::numeric_limits<T>::round_style == std::round_to_nearest) { os << "to nearest" ; } else if (std::numeric_limits<T>::round_style == std::round_toward_infinity) { os << "to infin[]"; // Or << "to \u221E" << "to infinity" ; } else if (std::numeric_limits<T>::round_style == std::round_toward_neg_infinity) { os << "to -infin[]" ; } else { os << "undefined!"; std::cout << "std::numeric_limits<T>::round_style is undefined value!" << std::endl; } return; } // out_round_style(std::ostream& os); template<typename T> void integer_constants(std::string type_name, std::ostream& os) { //! Output a line of table integer constant values to ostream os. os << "\n[" "[" << type_name << "]" ; os << "[" << (std::numeric_limits<T>::is_signed ? "signed" : "unsigned") << "]" ; // Is always exact for integer types, so removed: // os << "[" << (std::numeric_limits<T>::is_exact ? "exact" : "inexact") << "]" ; os << "[" << (std::numeric_limits<T>::is_bounded ? "bound" : "unbounded") << "]" ; os << "[" << (std::numeric_limits<T>::is_modulo ? "modulo" : "no") << "]" ; os << "[" ; out_round_style<T>(os); os << "]" ; os << "[" << std::numeric_limits<T>::radix << "]" ; os << "[" << std::numeric_limits<T>::digits << "]" ; os << "[" << std::numeric_limits<T>::digits10 << "]" ; // Undefined for integers, so removed: // os << "[" << std::numeric_limits<T>::max_digits10 << "]" os << "]"; } // void integer_constants template<typename T> void float_constants(std::string type_name, std::ostream& os) { //! Output a row of table values to `ostream` os. os << "\n[" "[" << type_name << "]" ; //os << "[" << (std::numeric_limits<T>::is_signed ? "signed" : "unsigned") << "]" ; //os << "[" << (std::numeric_limits<T>::is_exact ? "exact" : "inexact") << "]" ; //os << "[" << (std::numeric_limits<T>::is_bounded ? "bound" : "no") << "]" ; // os << "[" << (std::numeric_limits<T>::is_modulo ? "modulo" : "no") << "]" ; os << "[" ; out_round_style<T>(os); os << "]" ; os << "[" << std::numeric_limits<T>::radix << "]" ; os << "[" << std::numeric_limits<T>::digits << "]" ; os << "[" << std::numeric_limits<T>::digits10 << "]" ; os << "[" << std::numeric_limits<T>::max_digits10 << "]"; os << "[" << std::numeric_limits<T>::min_exponent << "]" ; os << "[" << std::numeric_limits<T>::min_exponent10 << "]" ; os << "[" << std::numeric_limits<T>::max_exponent << "]" ; os << "[" << std::numeric_limits<T>::max_exponent10 << "]" ; os << "[" << (std::numeric_limits<T>::tinyness_before ? "tiny" : "no") << "]" ; os << "[" << (std::numeric_limits<T>::traps ? "traps" : "no") << "]" ; os << "]" "\n"; // end of row. } // void float_constants /* Types across and two functions down. template<typename T> void integer_functions(std::string type_name, std::ostream& os) { //! Output a line of table integer function values to `ostream` os. os << "\n[" "[" << type_name << "]" ; os << "[" << std::numeric_limits<T>::max() << "]" ; //os << "[" << std::numeric_limits<T>::lowest() << "]" ; always == min for integer types, // so removed to save space. os << "[" << std::numeric_limits<T>::min() << "]" "]"; } // void integer_functions */ // Types down and two (or three) functions across. template<typename T> void integer_functions(std::string type_name, std::ostream& os) { //! Output a line of table integer function values to `ostream` os. os << "\n[" // start of row. "[" << type_name << "]" ; os << "[" << std::numeric_limits<T>::max() << "]" ; // os << "[" << std::numeric_limits<T>::lowest() << "]" ; os << "[" << std::numeric_limits<T>::min() << "]" ; os << "]"; // end of row. } // void integer_functions template<typename T> void float_functions(std::string type_name, std::ostream& os) { //! Output a line of table float-point function values to `ostream` os. os << "\n[" // start of row. "[" << type_name << "]" ; os << "[" << std::numeric_limits<T>::max() << "]" ; os << "[" << std::numeric_limits<T>::lowest() << "]" ; os << "[" << std::numeric_limits<T>::min() << "]" os << "[" << std::numeric_limits<T>::epsilon() << "]" os << "[" << std::numeric_limits<T>::round_error() << "]" os << "[" << std::numeric_limits<T>::infinity() << "]" os << "[" << std::numeric_limits<T>::quiet_NaN() << "]" os << "[" << std::numeric_limits<T>::signaling_NaN() << "]" os << "[" << std::numeric_limits<T>::denorm_min() << "]" "]"; // end of row. } // void float_functions template<typename T> int numeric_limits_list(std::string description) {//! Output numeric_limits for numeric_limits<T>, for example `numeric_limits_list<bool>()`. // This is not used for Quickbook format. // std::cout << versions() << std::endl; std::cout << "\n" << description << "\n" << std::endl; // int, int64_t rather than full long typeid(T).name(). std::cout << "Type " << typeid(T).name() << " std::numeric_limits::<" << typeid(T).name() << ">\n" << std::endl; // ull long typeid(T).name() if (std::numeric_limits<T>::is_specialized == false) { std::cout << "type " << typeid(T).name() << " is not specialized for std::numeric_limits!" << std::endl; //return -1; } // Member constants. std::cout << (std::numeric_limits<T>::is_signed ? "is signed." : "unsigned.") << std::endl; std::cout << (std::numeric_limits<T>::is_integer ? "is integer." : "not integer (fixed or float-point).") << std::endl; std::cout << (std::numeric_limits<T>::is_exact ? "is exact." : "not exact.") << std::endl; std::cout << (std::numeric_limits<T>::has_infinity ? "has infinity." : "no infinity.") << std::endl; std::cout << (std::numeric_limits<T>::has_quiet_NaN ? "has quiet NaN." : "no quiet NaN.") << std::endl; std::cout << (std::numeric_limits<T>::has_signaling_NaN ? "has signaling NaN." : "no signaling NaN.") << std::endl; if (!std::numeric_limits<T>::is_integer) { // is floating_point std::cout << "Denorm style is " ; if (std::numeric_limits<T>::has_denorm == std::denorm_absent) { std::cout << "denorm_absent." << std::endl; } else if (std::numeric_limits<T>::has_denorm == std::denorm_present) { std::cout << "denorm_present." << std::endl; } else if (std::numeric_limits<T>::has_denorm == std::denorm_indeterminate) { std::cout << "denorm_indeterminate." << std::endl; } else { std::cout << "std::numeric_limits<T>::has_denorm unexpected value!" << std::endl; } std::cout << (std::numeric_limits<T>::has_denorm_loss ? "has denorm loss." : "no denorm loss.") << std::endl; // true if a loss of accuracy is detected as a denormalization loss, rather than an inexact result. std::cout << "Round style is "; if (std::numeric_limits<T>::round_style == std::round_indeterminate) { std::cout << "round_indeterminate!" << std::endl; } else if (std::numeric_limits<T>::round_style == std::round_toward_zero) { std::cout << "round_toward_zero." << std::endl; } else if (std::numeric_limits<T>::round_style == std::round_to_nearest) { std::cout << "round_to_nearest." << std::endl; } else if (std::numeric_limits<T>::round_style == std::round_toward_infinity) { std::cout << "round_toward_infinity." << std::endl; } else if (std::numeric_limits<T>::round_style == std::round_toward_neg_infinity) { std::cout << "round_toward_neg_infinity." << std::endl; } else { std::cout << "undefined value!" << std::endl; } } // is floating_point std::cout << (std::numeric_limits<T>::is_iec559 ? "is IEC599." : "not IEC599.") << std::endl; std::cout << (std::numeric_limits<T>::is_bounded ? "is bound." : "unbounded.") << std::endl; std::cout << (std::numeric_limits<T>::is_modulo ? "is modulo." : "no modulo.") << std::endl; std::cout << std::dec << "radix " << std::numeric_limits<T>::radix << std::endl; std::cout << "digits " << std::numeric_limits<T>::digits << std::endl; std::cout << "digits10 " << std::numeric_limits<T>::digits10 << std::endl; std::cout.precision(std::numeric_limits<T>::max_digits10); // Full precision for floating-point values like max, min ... std::cout << "max_digits10 " << std::numeric_limits<T>::max_digits10 << std::endl; std::cout << "min_exponent " << std::numeric_limits<T>::min_exponent << std::endl; std::cout << "min_exponent10 " << std::numeric_limits<T>::min_exponent10 << std::endl; std::cout << "max_exponent " << std::numeric_limits<T>::max_exponent << std::endl; std::cout << "max_exponent10 " << std::numeric_limits<T>::max_exponent10 << std::endl; std::cout << (std::numeric_limits<T>::tinyness_before ? "Can tiny values before rounding." : "no tinyness_before.") << std::endl; // true if the type can detect tiny values before rounding; false if it cannot. std::cout << (std::numeric_limits<T>::traps ? "traps" : "no trapping.") << std::endl; // Whether trapping that reports on arithmetic exceptions is implemented for a type. std::cout << "Member functions." << std::endl; // (assumes operator<< for type T is available). // If floating-point then hex format may not be available. std::cout << "max = " << std::numeric_limits<T>::max() << std::endl; //if (std::numeric_limits<T>::is_integer) //{ // std::cout << " = " << std::hex << std::numeric_limits<T>::max() << std::endl; //} std::cout << "lowest = " << std::dec << std::numeric_limits<T>::lowest() << std::endl; //if (std::numeric_limits<T>::is_integer) //{ // std::cout << " = " << std::hex << std::numeric_limits<T>::lowest() << std::endl; //} std::cout << "min = " << std::dec << std::numeric_limits<T>::min() << std::endl; //if (std::numeric_limits<T>::is_integer) //{ // std::cout << " = " << std::hex << std::numeric_limits<T>::min() << std::endl; //} std::cout << "epsilon = " << std::dec << std::numeric_limits<T>::epsilon() << std::endl; //if (std::numeric_limits<T>::is_integer) //{ // std::cout << " = " << std::hex << std::numeric_limits<T>::epsilon() << std::endl; //} // round_error is always zero for integer types. // round_error is usually 1/2 = (T)0.5 for floating-point types. // round_error is ? for fixed-point. std::cout << "round_error = " << std::numeric_limits<T>::round_error() << " ULP." << std::endl; std::cout << "infinity = " << std::dec << std::numeric_limits<T>::infinity() << std::endl; std::cout << " = " << std::hex << std::numeric_limits<T>::infinity() << std::endl; std::cout << "quiet_NaN = " << std::dec << std::numeric_limits<T>::quiet_NaN() << std::endl; std::cout << " = " << std::hex << std::numeric_limits<T>::quiet_NaN() << std::endl; std::cout << "signaling_NaN = " << std::dec << std::numeric_limits<T>::signaling_NaN() << std::endl; std::cout << " = " << std::hex << std::numeric_limits<T>::signaling_NaN() << std::endl; // Only meaningful if (std::numeric_limits<T>::has_denorm == std::denorm_present) // so might not bother to show if absent? std::cout << "denorm_min = " << std::numeric_limits<T>::denorm_min() << std::endl; std::cout << " = " << std::numeric_limits<T>::denorm_min() << std::endl; return 0; } int main() { try { using namespace boost::multiprecision; std::cout << versions() << std::endl; std::ofstream fout(filename, std::ios_base::out); if (!fout.is_open()) { std::cout << "Unable to open file " << filename << " for output.\n" << std::endl; return -1; // boost::EXIT_FAILURE; } fout << "[/""\n" "Copyright 2013 Paul A. Bristow.""\n" "Copyright 2013 John Maddock.""\n" "Distributed under the Boost Software License, Version 1.0.""\n" "(See accompanying file LICENSE_1_0.txt or copy at""\n" "http://www.boost.org/LICENSE_1_0.txt).""\n" "]""\n" << std::endl; fout << "[section:limits"<< bits32_64 << " Numeric limits for " << bits32_64 << "-bit platform]" << std::endl; // Output platform version info (32 or 64). fout << "These tables were generated using the following program and options:\n\n" "[pre""\n" << versions() << "]""\n" << std::endl; fout << "[table:integral_constants Integer types constants (`std::numeric_limits<T>::is_integer == true` && is_exact == true)" "\n" "["; for (size_t i = 0; i < integer_constant_heads.size(); i++) { // signed, bound, modulo ... fout << "[" << integer_constant_heads[i] << "]" ; } fout << "]"; integer_constants<bool>("bool", fout); integer_constants<char>("char", fout); integer_constants<unsigned char>("unsigned char", fout); integer_constants<char16_t>("char16_t", fout); integer_constants<char32_t>("char32_t", fout); integer_constants<short>("short", fout); integer_constants<unsigned short>("unsigned short", fout); integer_constants<int>("int", fout); integer_constants<unsigned int>("unsigned", fout); integer_constants<long>("long", fout); integer_constants<unsigned long>("unsigned long", fout); integer_constants<long long>("long long", fout); integer_constants<unsigned long long>("unsigned long long", fout); integer_constants<int32_t>("int32_t", fout); integer_constants<uint32_t>("uint32_t", fout); integer_constants<int64_t>("int64_t", fout); integer_constants<uint64_t>("uint64_t", fout); integer_constants<int128_t>("int128_t", fout); integer_constants<uint128_t>("uint128_t", fout); integer_constants<int256_t>("int256_t", fout); integer_constants<uint256_t>("uint256_t", fout); // integer_constants<int512_t>("int512_t", fout); //integer_constants<uint512_t>("uint512_t", fout); // Too big? integer_constants<cpp_int>("cpp_int", fout); fout << "\n]\n\n"; fout << "[table:integral_functions Integer types functions (`std::numeric_limits<T>::is_integer == true && std::numeric_limits<T>::min() == std::numeric_limits<T>::lowest()` )" "\n" "["; // Display types across the page, and 2 (or 3) functions as rows. fout << "[function]"; for (size_t i = 0; i < integer_function_heads.size(); i++) { fout << "[" << integer_function_heads[i] << "]" ; } fout << "]"; // end of headings. integer_functions<bool>("bool", fout); //integer_functions<char>("char", fout); // Need int value not char. fout << "\n[" // start of row. "[" << "char"<< "]" ; fout << "[" << static_cast<int>((std::numeric_limits<char>::max)()) << "]" ; // fout << "[" << (std::numeric_limits<T>::lowest)() << "]" ; fout << "[" << static_cast<int>((std::numeric_limits<char>::min)()) << "]" ; fout << "]"; // end of row. //integer_functions<unsigned char>("unsigned char", fout); // Need int value not char. fout << "\n[" // start of row. "[" << "unsigned char"<< "]" ; fout << "[" << static_cast<int>((std::numeric_limits<unsigned char>::max)()) << "]" ; // fout << "[" << std::numeric_limits<unsigned char>::lowest() << "]" ; fout << "[" << static_cast<int>(std::numeric_limits<unsigned char>::min()) << "]" ; fout << "]"; // end of row. integer_functions<char16_t>("char16_t", fout); integer_functions<char32_t>("char32_t", fout); integer_functions<short>("short", fout); integer_functions<unsigned short>("unsigned short", fout); integer_functions<int>("int", fout); integer_functions<unsigned int>("unsigned int", fout); integer_functions<long>("long", fout); integer_functions<unsigned long>("unsigned long", fout); integer_functions<long long>("long long", fout); integer_functions<unsigned long long>("unsigned long long", fout); integer_functions<int32_t>("int32_t", fout); integer_functions<int64_t>("int64_t", fout); integer_functions<int128_t>("int128_t", fout); fout << "]" "\n"; // end of table; //fout << "[[max]" // << "[" << std::numeric_limits<bool>::max() << "]" // << "[" << static_cast<int>(std::numeric_limits<char>::max()) << "]" // << "[" << static_cast<int>(std::numeric_limits<unsigned char>::max()) << "]" // << "[" << static_cast<int>(std::numeric_limits<char16_t>::max()) << "]" // << "[" << static_cast<int>(std::numeric_limits<char32_t>::max()) << "]" // << "[" << std::numeric_limits<short>::max() << "]" // << "[" << std::numeric_limits<unsigned short>::max() << "]" // << "[" << std::numeric_limits<int>::max() << "]" // << "[" << std::numeric_limits<unsigned int>::max() << "]" // << "[" << std::numeric_limits<long>::max() << "]" // << "[" << std::numeric_limits<unsigned long>::max() << "]" // << "[" << std::numeric_limits<long long>::max() << "]" // << "[" << std::numeric_limits<unsigned long long>::max() << "]" // << "[" << std::numeric_limits<int32_t>::max() << "]" // << "[" << std::numeric_limits<int64_t>::max() << "]" // << "[" << std::numeric_limits<int128_t>::max() << "]" // //<< "[" << std::numeric_limits<int256_t>::max() << "]" // too big? // //<< "[" << std::numeric_limits<int512_t>::max() << "]" // too big? // << "]" "\n"; ///* Assume lowest() is not useful as == min for all integer types. // */ //fout << "[[min]" // << "[" << std::numeric_limits<bool>::min() << "]" // << "[" << static_cast<int>(std::numeric_limits<char>::min()) << "]" // << "[" << static_cast<int>(std::numeric_limits<unsigned char>::min()) << "]" // << "[" << static_cast<int>(std::numeric_limits<char16_t>::min()) << "]" // << "[" << static_cast<int>(std::numeric_limits<char32_t>::min()) << "]" // << "[" << std::numeric_limits<short>::min() << "]" // << "[" << std::numeric_limits<unsigned short>::min() << "]" // << "[" << std::numeric_limits<int>::min() << "]" // << "[" << std::numeric_limits<unsigned int>::min() << "]" // << "[" << std::numeric_limits<long>::min() << "]" // << "[" << std::numeric_limits<unsigned long>::min() << "]" // << "[" << std::numeric_limits<long long>::min() << "]" // << "[" << std::numeric_limits<unsigned long long>::min() << "]" // << "[" << std::numeric_limits<int32_t>::min() << "]" // << "[" << std::numeric_limits<int64_t>::min() << "]" // << "[" << std::numeric_limits<int128_t>::min() << "]" // // << "[" << std::numeric_limits<int256_t>::min() << "]" // too big? // // << "[" << std::numeric_limits<int512_t>::min() << "]" // too big? // << "]""\n"; // Floating-point typedef number<cpp_dec_float<50> > cpp_dec_float_50; // 50 decimal digits. typedef number<cpp_bin_float<113> > bin_128bit_double_type; // == Binary rare long double. fout << //"[table:float_functions Floating-point types constants (`std::numeric_limits<T>::is_integer == false && std::numeric_limits<T>::is_modulo == false` )" "\n" "[table:float_functions Floating-point types constants (`std::numeric_limits<T>::is_integer==false && is_signed==true && is_modulo==false && is_exact==false && is_bound==true`)" "\n" "["; for (size_t i = 0; i < float_constant_heads.size(); i++) { fout << "[" << float_constant_heads[i] << "]" ; } fout << "]"; // end of headings. float_constants<float>("float", fout); float_constants<double>("double", fout); float_constants<long double>("long double", fout); float_constants<cpp_dec_float_50>("cpp_dec_float_50", fout); float_constants<bin_128bit_double_type>("bin_128bit_double_type", fout); fout << "]" "\n"; // end of table; fout << "[table:float_functions Floating-point types functions (`std::numeric_limits<T>::is_integer == false`)" "\n" "["; for (size_t i = 0; i < float_type_names.size(); i++) { fout << "[" << float_type_names[i] << "]" ; } fout << "]"; // end of headings. fout << "[[max]" << "[" << std::numeric_limits<float>::max() << "]" << "[" << std::numeric_limits<double>::max() << "]" //#if LDBL_MANT_DIG > DBL_MANT_DIG // Perhaps to test Long double is not just a duplication of double (but need change is headings too). << "[" << std::numeric_limits<long double>::max() << "]" //#endif << "[" << std::numeric_limits<cpp_dec_float_50>::max() << "]" << "[" << std::numeric_limits<bin_128bit_double_type >::max() << "]" << "]" "\n"; // end of row. fout << "[[min]" << "[" << std::numeric_limits<float>::min() << "]" << "[" << std::numeric_limits<double>::min() << "]" //#if LDBL_MANT_DIG > DBL_MANT_DIG // Long double is not just a duplication of double. << "[" << std::numeric_limits<long double>::min() << "]" //#endif << "[" << std::numeric_limits<cpp_dec_float_50 >::min() << "]" << "[" << std::numeric_limits<bin_128bit_double_type >::min() << "]" << "]" "\n"; // end of row. fout << "[[epsilon]" << "[" << std::numeric_limits<float>::epsilon() << "]" << "[" << std::numeric_limits<double>::epsilon() << "]" //#if LDBL_MANT_DIG > DBL_MANT_DIG // Long double is not just a duplication of double. << "[" << std::numeric_limits<long double>::epsilon() << "]" //#endif << "[" << std::numeric_limits<cpp_dec_float_50 >::epsilon() << "]" << "[" << std::numeric_limits<bin_128bit_double_type >::epsilon() << "]" << "]" "\n"; // end of row. fout << "[[round_error]" << "[" << std::numeric_limits<float>::round_error() << "]" << "[" << std::numeric_limits<double>::round_error() << "]" //#if LDBL_MANT_DIG > DBL_MANT_DIG // Long double is not just a duplication of double. << "[" << std::numeric_limits<long double>::round_error() << "]" //#endif << "[" << std::numeric_limits<cpp_dec_float_50 >::round_error() << "]" << "[" << std::numeric_limits<bin_128bit_double_type >::round_error() << "]" << "]" "\n"; // end of row. fout << "[[infinity]" << "[" << std::numeric_limits<float>::infinity() << "]" << "[" << std::numeric_limits<double>::infinity() << "]" //#if LDBL_MANT_DIG > DBL_MANT_DIG // Long double is not just a duplication of double. << "[" << std::numeric_limits<long double>::infinity() << "]" //#endif << "[" << std::numeric_limits<cpp_dec_float_50 >::infinity() << "]" << "[" << std::numeric_limits<bin_128bit_double_type >::infinity() << "]" << "]" "\n"; // end of row. fout << "[[quiet_NaN]" << "[" << std::numeric_limits<float>::quiet_NaN() << "]" << "[" << std::numeric_limits<double>::quiet_NaN() << "]" //#if LDBL_MANT_DIG > DBL_MANT_DIG // Long double is not just a duplication of double. << "[" << std::numeric_limits<long double>::quiet_NaN() << "]" //#endif << "[" << std::numeric_limits<cpp_dec_float_50 >::quiet_NaN() << "]" << "[" << std::numeric_limits<bin_128bit_double_type >::quiet_NaN() << "]" << "]" "\n"; // end of row. fout << "[[signaling_NaN]" << "[" << std::numeric_limits<float>::signaling_NaN() << "]" << "[" << std::numeric_limits<double>::signaling_NaN() << "]" //#if LDBL_MANT_DIG > DBL_MANT_DIG // Long double is not just a duplication of double. << "[" << std::numeric_limits<long double>::signaling_NaN() << "]" //#endif << "[" << std::numeric_limits<cpp_dec_float_50 >::signaling_NaN() << "]" << "[" << std::numeric_limits<bin_128bit_double_type >::signaling_NaN() << "]" << "]" "\n"; // end of row. fout << "[[denorm_min]" << "[" << std::numeric_limits<float>::denorm_min() << "]" << "[" << std::numeric_limits<double>::denorm_min() << "]" //#if LDBL_MANT_DIG > DBL_MANT_DIG // Long double is not just a duplication of double. << "[" << std::numeric_limits<long double>::denorm_min() << "]" //#endif << "[" << std::numeric_limits<cpp_dec_float_50 >::denorm_min() << "]" << "[" << std::numeric_limits<bin_128bit_double_type >::denorm_min() << "]" << "]" "\n"; // end of row. fout << "]" "\n"; // end of table; fout << "\n\n" "[endsect] [/section:limits32 Numeric limits for 32-bit platform]" "\n" << std::endl; fout.close(); } catch(std::exception ex) { std::cout << "exception thrown: " << ex.what() << std::endl; } } // int main() /* Description: Autorun "J:\Cpp\Misc\Debug\numeric_limits_qbk.exe" Program: I:\boost-sandbox\multiprecision.cpp_bin_float\libs\multiprecision\doc\numeric_limits_qbk.cpp Wed Aug 28 14:17:21 2013 BuildInfo: Platform Win32 Compiler Microsoft Visual C++ version 10.0 MSVC version 160040219. STL Dinkumware standard library version 520 Boost version 1.55.0 */