mirror of
https://github.com/saitohirga/WSJT-X.git
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239 lines
8.6 KiB
C++
239 lines
8.6 KiB
C++
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// boost cstdint.hpp test program ------------------------------------------//
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// Copyright Beman Dawes 2000. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/integer for documentation.
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// Revision History
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// 11 Sep 01 Adapted to work with macros defined in native stdint.h (John Maddock)
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// 12 Nov 00 Adapted to merged <boost/cstdint.hpp>
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// 23 Sep 00 Added INTXX_C constant macro support + int64_t support (John Maddock).
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// 28 Jun 00 Initial version
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//
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// There are two ways to test this: in version 1, we include cstdint.hpp as the first
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// include, which means we get decide whether __STDC_CONSTANT_MACROS is defined.
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// In version two we include stdint.h with __STDC_CONSTANT_MACROS *NOT* defined first,
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// and check that we still end up with compatible definitions for the INT#_C macros.
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//
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// This is version 1.
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//
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#if defined(__GNUC__) && (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4))
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// We can't suppress this warning on the command line as not all GCC versions support -Wno-type-limits :
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#pragma GCC diagnostic ignored "-Wtype-limits"
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#endif
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#include <boost/cstdint.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <iostream>
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#ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
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//
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// the following class is designed to verify
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// that the various INTXX_C macros can be used
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// in integral constant expressions:
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//
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struct integral_constant_checker
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{
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static const boost::int8_t int8 = INT8_C(-127);
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static const boost::int_least8_t int_least8 = INT8_C(-127);
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static const boost::int_fast8_t int_fast8 = INT8_C(-127);
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static const boost::uint8_t uint8 = UINT8_C(255);
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static const boost::uint_least8_t uint_least8 = UINT8_C(255);
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static const boost::uint_fast8_t uint_fast8 = UINT8_C(255);
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static const boost::int16_t int16 = INT16_C(-32767);
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static const boost::int_least16_t int_least16 = INT16_C(-32767);
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static const boost::int_fast16_t int_fast16 = INT16_C(-32767);
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static const boost::uint16_t uint16 = UINT16_C(65535);
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static const boost::uint_least16_t uint_least16 = UINT16_C(65535);
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static const boost::uint_fast16_t uint_fast16 = UINT16_C(65535);
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static const boost::int32_t int32 = INT32_C(-2147483647);
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static const boost::int_least32_t int_least32 = INT32_C(-2147483647);
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static const boost::int_fast32_t int_fast32 = INT32_C(-2147483647);
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static const boost::uint32_t uint32 = UINT32_C(4294967295);
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static const boost::uint_least32_t uint_least32 = UINT32_C(4294967295);
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static const boost::uint_fast32_t uint_fast32 = UINT32_C(4294967295);
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static void check();
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};
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void integral_constant_checker::check()
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{
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BOOST_TEST( int8 == -127 );
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BOOST_TEST( int_least8 == -127 );
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BOOST_TEST( int_fast8 == -127 );
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BOOST_TEST( uint8 == 255u );
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BOOST_TEST( uint_least8 == 255u );
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BOOST_TEST( uint_fast8 == 255u );
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BOOST_TEST( int16 == -32767 );
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BOOST_TEST( int_least16 == -32767 );
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BOOST_TEST( int_fast16 == -32767 );
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BOOST_TEST( uint16 == 65535u );
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BOOST_TEST( uint_least16 == 65535u );
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BOOST_TEST( uint_fast16 == 65535u );
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BOOST_TEST( int32 == -2147483647 );
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BOOST_TEST( int_least32 == -2147483647 );
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BOOST_TEST( int_fast32 == -2147483647 );
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BOOST_TEST( uint32 == 4294967295u );
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BOOST_TEST( uint_least32 == 4294967295u );
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BOOST_TEST( uint_fast32 == 4294967295u );
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}
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#endif // BOOST_NO_INCLASS_MEMBER_INITIALIZATION
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//
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// the following function simply verifies that the type
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// of an integral constant is correctly defined:
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//
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#ifdef __BORLANDC__
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#pragma option -w-8008
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#pragma option -w-8066
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#endif
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template <class T1, class T2>
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void integral_constant_type_check(T1, T2)
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{
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//
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// the types T1 and T2 may not be exactly
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// the same type, but they should be the
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// same size and signedness. We could use
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// numeric_limits to verify this, but
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// numeric_limits implementations currently
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// vary too much, or are incomplete or missing.
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//
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T1 t1 = static_cast<T1>(-1); // cast suppresses warnings
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T2 t2 = static_cast<T2>(-1); // ditto
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#if defined(BOOST_HAS_STDINT_H)
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// if we have a native stdint.h
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// then the INTXX_C macros may define
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// a type that's wider than required:
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BOOST_TEST(sizeof(T1) <= sizeof(T2));
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#else
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BOOST_TEST(sizeof(T1) == sizeof(T2));
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BOOST_TEST(t1 == t2);
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#endif
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#if defined(BOOST_HAS_STDINT_H)
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// native headers are permitted to promote small
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// unsigned types to type int:
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if(sizeof(T1) >= sizeof(int))
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{
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if(t1 > 0)
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BOOST_TEST(t2 > 0);
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else
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BOOST_TEST(!(t2 > 0));
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}
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else if(t1 < 0)
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BOOST_TEST(!(t2 > 0));
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#else
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if(t1 > 0)
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BOOST_TEST(t2 > 0);
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else
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BOOST_TEST(!(t2 > 0));
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#endif
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}
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int main(int, char*[])
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{
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#ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
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integral_constant_checker::check();
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#endif
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//
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// verify the types of the integral constants:
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//
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integral_constant_type_check(boost::int8_t(0), INT8_C(0));
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integral_constant_type_check(boost::uint8_t(0), UINT8_C(0));
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integral_constant_type_check(boost::int16_t(0), INT16_C(0));
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integral_constant_type_check(boost::uint16_t(0), UINT16_C(0));
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integral_constant_type_check(boost::int32_t(0), INT32_C(0));
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integral_constant_type_check(boost::uint32_t(0), UINT32_C(0));
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#ifndef BOOST_NO_INT64_T
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integral_constant_type_check(boost::int64_t(0), INT64_C(0));
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integral_constant_type_check(boost::uint64_t(0), UINT64_C(0));
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#endif
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//
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boost::int8_t int8 = INT8_C(-127);
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boost::int_least8_t int_least8 = INT8_C(-127);
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boost::int_fast8_t int_fast8 = INT8_C(-127);
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boost::uint8_t uint8 = UINT8_C(255);
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boost::uint_least8_t uint_least8 = UINT8_C(255);
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boost::uint_fast8_t uint_fast8 = UINT8_C(255);
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boost::int16_t int16 = INT16_C(-32767);
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boost::int_least16_t int_least16 = INT16_C(-32767);
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boost::int_fast16_t int_fast16 = INT16_C(-32767);
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boost::uint16_t uint16 = UINT16_C(65535);
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boost::uint_least16_t uint_least16 = UINT16_C(65535);
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boost::uint_fast16_t uint_fast16 = UINT16_C(65535);
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boost::int32_t int32 = INT32_C(-2147483647);
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boost::int_least32_t int_least32 = INT32_C(-2147483647);
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boost::int_fast32_t int_fast32 = INT32_C(-2147483647);
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boost::uint32_t uint32 = UINT32_C(4294967295);
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boost::uint_least32_t uint_least32 = UINT32_C(4294967295);
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boost::uint_fast32_t uint_fast32 = UINT32_C(4294967295);
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#ifndef BOOST_NO_INT64_T
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boost::int64_t int64 = INT64_C(-9223372036854775807);
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boost::int_least64_t int_least64 = INT64_C(-9223372036854775807);
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boost::int_fast64_t int_fast64 = INT64_C(-9223372036854775807);
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boost::uint64_t uint64 = UINT64_C(18446744073709551615);
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boost::uint_least64_t uint_least64 = UINT64_C(18446744073709551615);
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boost::uint_fast64_t uint_fast64 = UINT64_C(18446744073709551615);
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boost::intmax_t intmax = INTMAX_C(-9223372036854775807);
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boost::uintmax_t uintmax = UINTMAX_C(18446744073709551615);
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#else
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boost::intmax_t intmax = INTMAX_C(-2147483647);
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boost::uintmax_t uintmax = UINTMAX_C(4294967295);
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#endif
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BOOST_TEST( int8 == -127 );
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BOOST_TEST( int_least8 == -127 );
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BOOST_TEST( int_fast8 == -127 );
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BOOST_TEST( uint8 == 255u );
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BOOST_TEST( uint_least8 == 255u );
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BOOST_TEST( uint_fast8 == 255u );
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BOOST_TEST( int16 == -32767 );
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BOOST_TEST( int_least16 == -32767 );
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BOOST_TEST( int_fast16 == -32767 );
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BOOST_TEST( uint16 == 65535u );
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BOOST_TEST( uint_least16 == 65535u );
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BOOST_TEST( uint_fast16 == 65535u );
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BOOST_TEST( int32 == -2147483647 );
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BOOST_TEST( int_least32 == -2147483647 );
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BOOST_TEST( int_fast32 == -2147483647 );
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BOOST_TEST( uint32 == 4294967295u );
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BOOST_TEST( uint_least32 == 4294967295u );
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BOOST_TEST( uint_fast32 == 4294967295u );
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#ifndef BOOST_NO_INT64_T
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BOOST_TEST( int64 == INT64_C(-9223372036854775807) );
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BOOST_TEST( int_least64 == INT64_C(-9223372036854775807) );
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BOOST_TEST( int_fast64 == INT64_C(-9223372036854775807) );
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BOOST_TEST( uint64 == UINT64_C(18446744073709551615) );
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BOOST_TEST( uint_least64 == UINT64_C(18446744073709551615) );
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BOOST_TEST( uint_fast64 == UINT64_C(18446744073709551615) );
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BOOST_TEST( intmax == INT64_C(-9223372036854775807) );
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BOOST_TEST( uintmax == UINT64_C(18446744073709551615) );
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#else
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BOOST_TEST( intmax == -2147483647 );
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BOOST_TEST( uintmax == 4294967295u );
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#endif
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std::cout << "OK\n";
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return boost::report_errors();
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}
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