libcxx/test/std/language.support/support.limits/limits/round.style/check_values.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 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
  10
  11 // test numeric_limits
  12
  13 // float_denorm_style
  14
  15 #include <limits>
  16
  17 #include "test_macros.h"
  18
  19 typedef char one;
  20 struct two {one _[2];};
  21
  22 one test(std::float_denorm_style);
  23 two test(int);
  24
  25 int main(int, char**)
  26 {
  27     static_assert(std::denorm_indeterminate == -1,
  28                  "std::denorm_indeterminate == -1");
  29     static_assert(std::denorm_absent == 0,
  30                  "std::denorm_absent == 0");
  31     static_assert(std::denorm_present == 1,
  32                  "std::denorm_present == 1");
  33     static_assert(sizeof(test(std::denorm_present)) == 1,
  34                  "sizeof(test(std::denorm_present)) == 1");
  35     static_assert(sizeof(test(1)) == 2,
  36                  "sizeof(test(1)) == 2");
  37
  38   return 0;
  39 }