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From: "g.peterhoff@t-online.de" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug libquadmath/114623] sqrtq and std::numeric_limits<__float128>::max() Date: Sun, 07 Apr 2024 04:22:56 +0000 [thread overview] Message-ID: <bug-114623-4-xPwETZWnCB@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-114623-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114623 --- Comment #2 from g.peterhoff@t-online.de --- #include <boost/cstdfloat.hpp> #include <string_view> #include <charconv> #include <iostream> #include <limits> #include <array> #include <cmath> void print_hex(const std::float128_t value) { std::array<char, 1024> buffer{}; const std::to_chars_result result{std::to_chars(buffer.data(), buffer.data()+buffer.size(), value, std::chars_format::hex)}; std::cout << std::string_view{buffer.data(), result.ptr} << std::endl; } template <typename Type> void print_sqrt_max_hex() { using limits = std::numeric_limits<Type>; print_hex(std::sqrt(limits::max())); } int main() { print_sqrt_max_hex<std::float128_t>(); print_sqrt_max_hex<__float128>(); return EXIT_SUCCESS; } gets 1.ffffffffffffffffffffffffffffp+8191 1p+8192
next prev parent reply other threads:[~2024-04-07 4:22 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-07 4:03 [Bug libquadmath/114623] New: sqrt g.peterhoff@t-online.de 2024-04-07 4:15 ` [Bug libquadmath/114623] sqrt pinskia at gcc dot gnu.org 2024-04-07 4:22 ` g.peterhoff@t-online.de [this message] 2024-04-07 4:41 ` [Bug libquadmath/114623] sqrtq and std::numeric_limits<__float128>::max() pinskia at gcc dot gnu.org 2024-04-07 5:20 ` g.peterhoff@t-online.de 2024-04-08 8:42 ` jakub at gcc dot gnu.org 2024-04-08 11:27 ` jakub at gcc dot gnu.org 2024-04-08 11:30 ` jakub at gcc dot gnu.org 2024-04-09 6:22 ` cvs-commit at gcc dot gnu.org
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