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// Copyright 2017 Daniel James.
// Distributed under 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)
// Not a test, just a small program to write out configuration info
#include <boost/container_hash/hash.hpp>
#include <iostream>
#include <algorithm>
#include <limits>
#include <climits>
#if defined(BOOST_MSVC)
struct msvc_version {
unsigned version;
char const* description;
friend bool operator<(msvc_version const& v1, msvc_version const& v2) {
return v1.version < v2.version;
}
};
void write_compiler_info() {
// From:
// https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B
// https://blogs.msdn.microsoft.com/vcblog/2017/11/15/side-by-side-minor-version-msvc-toolsets-in-visual-studio-2017/
msvc_version versions[] = {
{0, "Old Visual C++"},
{1000, "Visual C++ 4.x, VS4.0?"},
{1100, "Visual C++ 5.0, VS97"},
{1200, "Visual C++ 6.0, VS6.0"},
{1300, "Visual C++ 7.0, VS.NET 2002"},
{1310, "Visual C++ 7.1, VS.NET 2003"},
{1400, "Visual C++ 8.0, VS2005"},
{1500, "Visual C++ 9.0, VS2008"},
{1600, "Visual C++ 10.0, VS2010"},
{1700, "Visual C++ 11.0, VS2012"},
{1800, "Visual C++ 12.0, VS2013"},
{1900, "Visual C++ 14.00, VS2015"},
{1910, "Visual C++ 14.1x, VS2017"},
{1920, "Visual C++ 14.2x, VS2019"},
{1930, "Visual C++ 14.3x, VS2022"},
};
msvc_version msvc = { BOOST_MSVC, "" };
msvc_version* v = std::upper_bound(versions,
versions + sizeof(versions) / sizeof(*versions),
msvc) - 1;
unsigned difference = msvc.version - v->version;
std::cout << v->description;
if (difference) {
std::cout << " +" << difference;
}
std::cout << std::endl;
}
#else
void write_compiler_info() {
}
#endif
#define PRINT(x) std::cout << #x ": " << x << std::endl
int main() {
write_compiler_info();
std::cout << std::endl;
PRINT(__cplusplus);
PRINT(BOOST_CXX_VERSION);
std::cout << std::endl;
#if defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
std::cout << "No <string_view>" << std::endl;
#else
std::cout << "Has <string_view>" << std::endl;
#endif
#if defined(BOOST_NO_CXX17_HDR_OPTIONAL)
std::cout << "No <optional>" << std::endl;
#else
std::cout << "Has <optional>" << std::endl;
#endif
#if defined(BOOST_NO_CXX17_HDR_VARIANT)
std::cout << "No <variant>" << std::endl;
#else
std::cout << "Has <variant>" << std::endl;
#endif
#if defined(BOOST_NO_CXX11_HDR_TYPEINDEX)
std::cout << "No <typeindex>" << std::endl;
#else
std::cout << "Has <typeindex>" << std::endl;
#endif
#if defined(BOOST_NO_CXX11_HDR_SYSTEM_ERROR)
std::cout << "No <system_error>" << std::endl;
#else
std::cout << "Has <system_error>" << std::endl;
#endif
std::cout << std::endl;
PRINT(CHAR_BIT);
std::cout << std::endl;
PRINT(sizeof(std::size_t)*CHAR_BIT);
PRINT(std::numeric_limits<std::size_t>::digits);
std::cout << std::endl;
PRINT(sizeof(float)*CHAR_BIT);
PRINT(std::numeric_limits<float>::digits);
std::cout << std::endl;
PRINT(sizeof(double)*CHAR_BIT);
PRINT(std::numeric_limits<double>::digits);
std::cout << std::endl;
PRINT(sizeof(long double)*CHAR_BIT);
PRINT(std::numeric_limits<long double>::digits);
}
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