102 lines
3.6 KiB
C++
102 lines
3.6 KiB
C++
/* boost integer_traits.hpp tests
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*
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* Copyright Jens Maurer 2000
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* $Id$
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*
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* Revision history
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* 2000-02-22 Small improvements by Beman Dawes
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* 2000-06-27 Rework for better MSVC and BCC co-operation
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*/
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#include <iostream>
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#include <boost/integer_traits.hpp>
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// use int64_t instead of long long for better portability
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#include <boost/cstdint.hpp>
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#include <boost/detail/lightweight_test.hpp>
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/*
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* General portability note:
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* MSVC mis-compiles explicit function template instantiations.
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* For example, f<A>() and f<B>() are both compiled to call f<A>().
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* BCC is unable to implicitly convert a "const char *" to a std::string
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* when using explicit function template instantiations.
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*
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* Therefore, avoid explicit function template instantiations.
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*/
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#if defined(BOOST_MSVC) && (BOOST_MSVC <= 1300)
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template<typename T> inline T make_char_numeric_for_streaming(T x) { return x; }
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namespace fix{
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inline int make_char_numeric_for_streaming(char c) { return c; }
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inline int make_char_numeric_for_streaming(signed char c) { return c; }
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inline int make_char_numeric_for_streaming(unsigned char c) { return c; }
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}
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using namespace fix;
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#else
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template<typename T> inline T make_char_numeric_for_streaming(T x) { return x; }
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inline int make_char_numeric_for_streaming(char c) { return c; }
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inline int make_char_numeric_for_streaming(signed char c) { return c; }
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inline int make_char_numeric_for_streaming(unsigned char c) { return c; }
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#endif
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template<class T>
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void runtest(const char * type, T)
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{
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typedef boost::integer_traits<T> traits;
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std::cout << "Checking " << type
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<< "; min is " << make_char_numeric_for_streaming((traits::min)())
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<< ", max is " << make_char_numeric_for_streaming((traits::max)())
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<< std::endl;
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BOOST_TEST(traits::is_specialized);
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#if defined(BOOST_MSVC) && (BOOST_MSVC <= 1200)
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// MSVC++ 6.0 issues a LNK1179 error (duplicate comdat) when the compiler
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// generates different symbol names with a very long common prefix:
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// the dummy "&& true" disambiguates between the symbols generated by this
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// BOOST_TEST instantiation and the preceding one.
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BOOST_TEST(traits::is_integer && true);
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#else
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BOOST_TEST(traits::is_integer);
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#endif
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BOOST_TEST(traits::is_integral == true);
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BOOST_TEST(traits::const_min == (traits::min)());
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BOOST_TEST(traits::const_max == (traits::max)());
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}
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int main(int, char*[])
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{
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runtest("bool", bool());
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runtest("char", char());
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typedef signed char signed_char;
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runtest("signed char", signed_char());
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typedef unsigned char unsigned_char;
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runtest("unsigned char", unsigned_char());
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runtest("wchar_t", wchar_t());
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runtest("short", short());
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typedef unsigned short unsigned_short;
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runtest("unsigned short", unsigned_short());
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runtest("int", int());
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typedef unsigned int unsigned_int;
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runtest("unsigned int", unsigned_int());
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runtest("long", long());
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typedef unsigned long unsigned_long;
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runtest("unsigned long", unsigned_long());
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#ifndef BOOST_NO_INTEGRAL_INT64_T
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//
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// MS/Borland compilers can't support 64-bit member constants
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// BeOS doesn't have specialisations for long long in SGI's <limits> header.
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runtest("int64_t (possibly long long)", boost::int64_t());
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runtest("uint64_t (possibly unsigned long long)", boost::uint64_t());
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#else
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std::cout << "Skipped int64_t and uint64_t" << std::endl;
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#endif
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// Some compilers don't pay attention to std:3.6.1/5 and issue a
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// warning here if "return 0;" is omitted.
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return boost::report_errors();
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}
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