ceph/src/boost/libs/container_hash/test/hash_info.cpp

   1
   2 // Copyright 2017 Daniel James.
   3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 // Not a test, just a small program to write out configuration info
   7
   8 #include <boost/container_hash/hash.hpp>
   9 #include <iostream>
  10 #include <algorithm>
  11
  12 #if defined(BOOST_MSVC)
  13
  14 struct msvc_version {
  15     unsigned version;
  16     char const* description;
  17
  18     friend bool operator<(msvc_version const& v1, msvc_version const& v2) {
  19         return v1.version < v2.version;
  20     }
  21 };
  22
  23 void write_compiler_info() {
  24     // From:
  25     // https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B
  26     // https://blogs.msdn.microsoft.com/vcblog/2017/11/15/side-by-side-minor-version-msvc-toolsets-in-visual-studio-2017/
  27     msvc_version versions[] = {
  28         {0, "Old Visual C++"},
  29         {1000, "Visual C++ 4.x, VS4.0?"},
  30         {1100, "Visual C++ 5.0, VS97"},
  31         {1200, "Visual C++ 6.0, VS6.0"},
  32         {1300, "Visual C++ 7.0, VS.NET 2002"},
  33         {1310, "Visual C++ 7.1, VS.NET 2003"},
  34         {1400, "Visual C++ 8.0, VS2005"},
  35         {1500, "Visual C++ 9.0, VS2008"},
  36         {1600, "Visual C++ 10.0, VS2010"},
  37         {1700, "Visual C++ 11.0, VS2012"},
  38         {1800, "Visual C++ 12.0, VS2013"},
  39         {1900, "Visual C++ 14.00, VS2015"},
  40         {1910, "Visual C++ 14.10, VS2017 15.1/2"},
  41         {1911, "Visual C++ 14.11, VS2017 15.3/4"},
  42         {1912, "Visual C++ 14.12, VS2017 15.5"},
  43         {1913, "Visual C++ 14.13, VS2017 15.6"}
  44     };
  45
  46     msvc_version msvc = { BOOST_MSVC, "" };
  47     msvc_version* v = std::upper_bound(versions,
  48         versions + sizeof(versions) / sizeof(*versions),
  49         msvc) - 1;
  50     unsigned difference = msvc.version - v->version;
  51
  52     std::cout << v->description << std::endl;
  53     if (difference) {
  54         std::cout << "+" << difference << std::endl;
  55     }
  56 }
  57
  58 #else
  59
  60 void write_compiler_info() {
  61 }
  62
  63 #endif
  64
  65 int main() {
  66     write_compiler_info();
  67
  68 #if defined(__cplusplus)
  69     std::cout << "__cplusplus: "
  70         << __cplusplus
  71         << std::endl;
  72 #endif
  73
  74     std::cout << "BOOST_HASH_CXX17: "
  75         << BOOST_HASH_CXX17
  76         << std::endl;
  77
  78     std::cout << "BOOST_HASH_HAS_STRING_VIEW: "
  79         << BOOST_HASH_HAS_STRING_VIEW
  80         << std::endl;
  81
  82     std::cout << "BOOST_HASH_HAS_OPTIONAL: "
  83         << BOOST_HASH_HAS_OPTIONAL
  84         << std::endl;
  85
  86     std::cout << "BOOST_HASH_HAS_VARIANT: "
  87         << BOOST_HASH_HAS_VARIANT
  88         << std::endl;
  89
  90 #if defined(BOOST_NO_CXX11_HDR_TYPEINDEX)
  91     std::cout << "No <typeindex>" << std::endl;
  92 #else
  93     std::cout << "<typeindex>" << std::endl;
  94 #endif
  95
  96 #if defined(BOOST_NO_CXX11_HDR_SYSTEM_ERROR)
  97     std::cout << "No <system_error>" << std::endl;
  98 #else
  99     std::cout << "<system_error>" << std::endl;
 100 #endif
 101
 102 }