libcxx/test/std/numerics/numbers/specialize.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03, c++11, c++14, c++17
  10
  11 #include <cassert>
  12 #include <numbers>
  13
  14 constexpr bool tests() {
  15   [[maybe_unused]] float f0{std::numbers::e_v<float>};
  16   [[maybe_unused]] float f1{std::numbers::log2e_v<float>};
  17   [[maybe_unused]] float f2{std::numbers::log10e_v<float>};
  18   [[maybe_unused]] float f3{std::numbers::pi_v<float>};
  19   [[maybe_unused]] float f4{std::numbers::inv_pi_v<float>};
  20   [[maybe_unused]] float f5{std::numbers::inv_sqrtpi_v<float>};
  21   [[maybe_unused]] float f6{std::numbers::ln2_v<float>};
  22   [[maybe_unused]] float f7{std::numbers::ln10_v<float>};
  23   [[maybe_unused]] float f8{std::numbers::sqrt2_v<float>};
  24   [[maybe_unused]] float f9{std::numbers::sqrt3_v<float>};
  25   [[maybe_unused]] float f10{std::numbers::inv_sqrt3_v<float>};
  26   [[maybe_unused]] float f11{std::numbers::egamma_v<float>};
  27   [[maybe_unused]] float f12{std::numbers::phi_v<float>};
  28
  29   double d0{std::numbers::e_v<double>};
  30   double d1{std::numbers::log2e_v<double>};
  31   double d2{std::numbers::log10e_v<double>};
  32   double d3{std::numbers::pi_v<double>};
  33   double d4{std::numbers::inv_pi_v<double>};
  34   double d5{std::numbers::inv_sqrtpi_v<double>};
  35   double d6{std::numbers::ln2_v<double>};
  36   double d7{std::numbers::ln10_v<double>};
  37   double d8{std::numbers::sqrt2_v<double>};
  38   double d9{std::numbers::sqrt3_v<double>};
  39   double d10{std::numbers::inv_sqrt3_v<double>};
  40   double d11{std::numbers::egamma_v<double>};
  41   double d12{std::numbers::phi_v<double>};
  42
  43   assert(d0 == std::numbers::e);
  44   assert(d1 == std::numbers::log2e);
  45   assert(d2 == std::numbers::log10e);
  46   assert(d3 == std::numbers::pi);
  47   assert(d4 == std::numbers::inv_pi);
  48   assert(d5 == std::numbers::inv_sqrtpi);
  49   assert(d6 == std::numbers::ln2);
  50   assert(d7 == std::numbers::ln10);
  51   assert(d8 == std::numbers::sqrt2);
  52   assert(d9 == std::numbers::sqrt3);
  53   assert(d10 == std::numbers::inv_sqrt3);
  54   assert(d11 == std::numbers::egamma);
  55   assert(d12 == std::numbers::phi);
  56
  57   [[maybe_unused]] long double ld0{std::numbers::e_v<long double>};
  58   [[maybe_unused]] long double ld1{std::numbers::log2e_v<long double>};
  59   [[maybe_unused]] long double ld2{std::numbers::log10e_v<long double>};
  60   [[maybe_unused]] long double ld3{std::numbers::pi_v<long double>};
  61   [[maybe_unused]] long double ld4{std::numbers::inv_pi_v<long double>};
  62   [[maybe_unused]] long double ld5{std::numbers::inv_sqrtpi_v<long double>};
  63   [[maybe_unused]] long double ld6{std::numbers::ln2_v<long double>};
  64   [[maybe_unused]] long double ld7{std::numbers::ln10_v<long double>};
  65   [[maybe_unused]] long double ld8{std::numbers::sqrt2_v<long double>};
  66   [[maybe_unused]] long double ld9{std::numbers::sqrt3_v<long double>};
  67   [[maybe_unused]] long double ld10{std::numbers::inv_sqrt3_v<long double>};
  68   [[maybe_unused]] long double ld11{std::numbers::egamma_v<long double>};
  69   [[maybe_unused]] long double ld12{std::numbers::phi_v<long double>};
  70
  71   return true;
  72 }
  73
  74 static_assert(tests());
  75
  76 int main(int, char**) {
  77   tests();
  78   return 0;
  79 }