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2d80c9e31a
In KWSys IOStream we need to detect whether 'long long' exists but we do not need its size. We avoid using CHECK_TYPE_SIZE because it does not work for types whose size varies across architectuers in Mac OS X universal binaries. See issue #9913.
482 lines
10 KiB
C++
482 lines
10 KiB
C++
/*============================================================================
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KWSys - Kitware System Library
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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// Setup for tests that use result of stl namespace test.
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#if defined(KWSYS_STL_HAVE_STD)
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# if KWSYS_STL_HAVE_STD
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# define kwsys_stl std
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# else
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# define kwsys_stl
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# endif
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#endif
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// Setup for tests that use iostreams.
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#if defined(KWSYS_IOS_USE_ANSI) && defined(KWSYS_IOS_HAVE_STD)
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# if defined(_MSC_VER)
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# pragma warning (push,1)
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# endif
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# if KWSYS_IOS_USE_ANSI
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# include <iostream>
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# else
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# include <iostream.h>
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# endif
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# if defined(_MSC_VER)
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# pragma warning (pop)
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# endif
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# if KWSYS_IOS_HAVE_STD
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# define kwsys_ios std
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# else
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# define kwsys_ios
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# endif
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#endif
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#ifdef TEST_KWSYS_STL_HAVE_STD
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#include <list>
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void f(std ::list<int>*) {}
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_IOS_USE_ANSI
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#include <iosfwd>
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_IOS_HAVE_STD
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#include <iosfwd>
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void f(std ::ostream*) {}
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_IOS_USE_SSTREAM
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#include <sstream>
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#if defined(__GNUC__) && __GNUC__ == 2 && __GNUC_MINOR__ == 96
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# error "GCC 2.96 stringstream is buggy"
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#endif
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int main()
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{
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std ::ostringstream ostr;
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ostr << "hello";
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if(ostr.str().size() == 5)
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{
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return 0;
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}
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return -1;
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}
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#endif
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#ifdef TEST_KWSYS_IOS_USE_STRSTREAM_H
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#include <strstream.h>
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_IOS_USE_STRSTREA_H
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#include <strstrea.h>
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_STL_STRING_HAVE_OSTREAM
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# include <iostream.h>
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# include <string>
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void f(ostream& os, const kwsys_stl::string& s) { os << s; }
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_STL_STRING_HAVE_ISTREAM
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# include <iostream.h>
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# include <string>
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void f(istream& is, kwsys_stl::string& s) { is >> s; }
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_STL_STRING_HAVE_NEQ_CHAR
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# include <string>
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bool f(const kwsys_stl::string& s) { return s != ""; }
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_CXX_HAS_CSTDIO
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#include <cstdio>
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_CXX_HAS_CSTDDEF
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#include <cstddef>
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void f(size_t) {}
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_CXX_HAS_LONG_LONG
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long long f(long long n) { return n; }
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int main()
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{
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long long n = 0;
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return static_cast<int>(f(n));
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}
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#endif
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#ifdef TEST_KWSYS_CXX_HAS_NULL_TEMPLATE_ARGS
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template <class T> class A;
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template <class T> int f(A<T>&);
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template <class T> class A
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{
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public:
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// "friend int f<>(A<T>&)" would conform
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friend int f(A<T>&);
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private:
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int x;
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};
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template <class T> int f(A<T>& a) { return a.x = 0; }
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template int f(A<int>&);
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int main()
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{
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A<int> a;
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return f(a);
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}
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#endif
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#ifdef TEST_KWSYS_CXX_HAS_MEMBER_TEMPLATES
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template <class U>
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class A
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{
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public:
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U u;
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A(): u(0) {}
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template <class V> V m(V* p) { return *p = u; }
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};
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int main()
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{
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A<short> a;
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int s = 1;
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return a.m(&s);
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}
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#endif
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#ifdef TEST_KWSYS_CXX_HAS_FULL_SPECIALIZATION
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template <class T> struct A {};
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template <> struct A<int*>
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{
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static int f() { return 0; }
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};
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int main() { return A<int*>::f(); }
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#endif
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#ifdef TEST_KWSYS_CXX_HAS_ARGUMENT_DEPENDENT_LOOKUP
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namespace N
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{
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class A {};
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int f(A*) { return 0; }
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}
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void f(void*);
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int main()
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{
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N::A* a = 0;
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return f(a);
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}
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#endif
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#ifdef TEST_KWSYS_STL_HAS_ITERATOR_TRAITS
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#include <iterator>
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#include <list>
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void f(kwsys_stl::iterator_traits<kwsys_stl::list<int>::iterator>::iterator_category const&) {}
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_STL_HAS_ITERATOR_CATEGORY
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#include <iterator>
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#include <list>
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void f(kwsys_stl::list<int>::iterator x) { kwsys_stl::iterator_category(x); }
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_STL_HAS___ITERATOR_CATEGORY
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#include <iterator>
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#include <list>
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void f(kwsys_stl::list<int>::iterator x) { kwsys_stl::__iterator_category(x); }
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_STL_HAS_ALLOCATOR_TEMPLATE
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#include <memory>
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template <class Alloc>
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void f(const Alloc&)
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{
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typedef typename Alloc::size_type alloc_size_type;
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}
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int main()
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{
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f(kwsys_stl::allocator<char>());
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_STL_HAS_ALLOCATOR_NONTEMPLATE
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#include <memory>
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void f(kwsys_stl::allocator::size_type const&) {}
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int main() { return 0; }
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#endif
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#ifdef TEST_KWSYS_STL_HAS_ALLOCATOR_REBIND
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#include <memory>
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template <class T, class Alloc>
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void f(const T&, const Alloc&)
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{
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typedef typename Alloc::template rebind<T>::other alloc_type;
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}
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int main()
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{
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f(0, kwsys_stl::allocator<char>());
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT
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#include <memory>
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void f(kwsys_stl::allocator<char> const& a)
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{
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a.max_size(sizeof(int));
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}
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int main()
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{
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f(kwsys_stl::allocator<char>());
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_STL_HAS_ALLOCATOR_OBJECTS
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#include <vector>
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void f(kwsys_stl::vector<int> const& v1)
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{
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kwsys_stl::vector<int>(1, 1, v1.get_allocator());
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}
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int main()
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{
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f(kwsys_stl::vector<int>());
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_STAT_HAS_ST_MTIM
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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int main()
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{
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struct stat stat1;
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(void)stat1.st_mtim.tv_sec;
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(void)stat1.st_mtim.tv_nsec;
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_CXX_SAME_LONG_AND___INT64
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void function(long**) {}
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int main()
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{
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__int64** p = 0;
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function(p);
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_CXX_SAME_LONG_LONG_AND___INT64
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void function(long long**) {}
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int main()
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{
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__int64** p = 0;
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function(p);
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_CAN_CONVERT_UI64_TO_DOUBLE
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void function(double& l, unsigned __int64 const& r)
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{
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l = static_cast<double>(r);
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}
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int main()
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{
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double tTo = 0.0;
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unsigned __int64 tFrom = 0;
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function(tTo, tFrom);
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_IOS_HAVE_BINARY
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int test_binary(int, ...)
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{
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return 0;
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}
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int main()
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{
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return test_binary(1, kwsys_ios::ios::binary);
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}
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#endif
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#ifdef TEST_KWSYS_IOS_HAS_ISTREAM_LONG_LONG
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int test_istream(kwsys_ios::istream& is, long long& x)
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{
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return (is >> x)? 1:0;
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}
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int main()
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{
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long long x = 0;
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return test_istream(kwsys_ios::cin, x);
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}
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#endif
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#ifdef TEST_KWSYS_IOS_HAS_OSTREAM_LONG_LONG
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int test_ostream(kwsys_ios::ostream& os, long long x)
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{
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return (os << x)? 1:0;
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}
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int main()
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{
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long long x = 0;
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return test_ostream(kwsys_ios::cout, x);
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}
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#endif
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#ifdef TEST_KWSYS_CHAR_IS_SIGNED
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/* Return 0 for char signed and 1 for char unsigned. */
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int main()
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{
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unsigned char uc = 255;
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return (*reinterpret_cast<char*>(&uc) < 0)?0:1;
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}
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#endif
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#ifdef TEST_KWSYS_LFS_WORKS
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/* Return 0 when LFS is available and 1 otherwise. */
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#define _LARGEFILE_SOURCE
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#define _LARGEFILE64_SOURCE
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#define _LARGE_FILES
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#define _FILE_OFFSET_BITS 64
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <assert.h>
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#if KWSYS_CXX_HAS_CSTDIO
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# include <cstdio>
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#endif
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#include <stdio.h>
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int main(int, char **argv)
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{
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/* check that off_t can hold 2^63 - 1 and perform basic operations... */
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#define OFF_T_64 (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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if (OFF_T_64 % 2147483647 != 1)
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return 1;
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// stat breaks on SCO OpenServer
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struct stat buf;
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stat( argv[0], &buf );
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if (!S_ISREG(buf.st_mode))
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return 2;
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FILE *file = fopen( argv[0], "r" );
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off_t offset = ftello( file );
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fseek( file, offset, SEEK_CUR );
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fclose( file );
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return 0;
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}
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#endif
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#ifdef TEST_KWSYS_CXX_TYPE_INFO
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/* Collect fundamental type information and save it to a CMake script. */
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/* Include limits.h to get macros indicating long long and __int64.
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Note that certain compilers need special macros to define these
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macros in limits.h. */
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#if defined(_MSC_VER) && !defined(_MSC_EXTENSIONS)
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# define _MSC_EXTENSIONS
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#endif
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#if defined(__GNUC__) && __GNUC__ < 3
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# define _GNU_SOURCE
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#endif
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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/* Due to shell differences and limitations of ADD_DEFINITIONS the
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KWSYS_CXX_TYPE_INFO_FILE macro will sometimes have double quotes
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and sometimes not. This macro will make sure the value is treated
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as a double-quoted string. */
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#define TO_STRING(x) TO_STRING0(x)
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#define TO_STRING0(x) TO_STRING1(x)
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#define TO_STRING1(x) #x
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void f() {}
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int main()
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{
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/* Construct the output file name. Some preprocessors will add an
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extra level of double quotes, so strip them. */
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char fbuf[] = TO_STRING(KWSYS_CXX_TYPE_INFO_FILE);
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char* fname = fbuf;
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if(fname[0] == '"')
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{
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++fname;
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int len = static_cast<int>(strlen(fname));
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if(len > 0 && fname[len-1] == '"')
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{
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fname[len-1] = 0;
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}
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}
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/* Try to open the output file. */
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if(FILE* fout = fopen(fname, "w"))
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{
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/* Set the size of standard types. */
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fprintf(fout, "SET(KWSYS_SIZEOF_CHAR %d)\n", static_cast<int>(sizeof(char)));
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fprintf(fout, "SET(KWSYS_SIZEOF_SHORT %d)\n", static_cast<int>(sizeof(short)));
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fprintf(fout, "SET(KWSYS_SIZEOF_INT %d)\n", static_cast<int>(sizeof(int)));
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fprintf(fout, "SET(KWSYS_SIZEOF_LONG %d)\n", static_cast<int>(sizeof(long)));
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/* Set the size of some non-standard but common types. */
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/* Check for a limits.h macro for long long to see if the type exists. */
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#if defined(LLONG_MAX) || defined(LONG_LONG_MAX) || defined(LONGLONG_MAX)
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fprintf(fout, "SET(KWSYS_SIZEOF_LONG_LONG %d)\n", static_cast<int>(sizeof(long long)));
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#else
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fprintf(fout, "SET(KWSYS_SIZEOF_LONG_LONG 0) # No long long available.\n");
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#endif
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/* Check for a limits.h macro for __int64 to see if the type exists. */
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#if defined(_I64_MIN)
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fprintf(fout, "SET(KWSYS_SIZEOF___INT64 %d)\n", static_cast<int>(sizeof(__int64)));
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#else
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fprintf(fout, "SET(KWSYS_SIZEOF___INT64 0) # No __int64 available.\n");
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#endif
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/* Set the size of some pointer types. */
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fprintf(fout, "SET(KWSYS_SIZEOF_PDATA %d)\n", static_cast<int>(sizeof(void*)));
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fprintf(fout, "SET(KWSYS_SIZEOF_PFUNC %d)\n", static_cast<int>(sizeof(&f)));
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/* Set whether the native type "char" is signed or unsigned. */
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unsigned char uc = 255;
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fprintf(fout, "SET(KWSYS_CHAR_IS_SIGNED %d)\n",
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(*reinterpret_cast<char*>(&uc) < 0)?1:0);
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fclose(fout);
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return 0;
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}
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else
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{
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fprintf(stderr, "Failed to write fundamental type info to \"%s\".\n",
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fname);
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return 1;
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}
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}
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#endif
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