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C++ X类代码示例

本文整理汇总了C++中X类的典型用法代码示例。如果您正苦于以下问题：C++ X类的具体用法？C++ X怎么用？C++ X使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。


在下文中一共展示了X类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: unordered_map_functions

void unordered_map_functions(X&, Key const& k, T const&)
{
    typedef BOOST_DEDUCED_TYPENAME X::mapped_type mapped_type;

    X a;
    test::check_return_type<mapped_type>::equals_ref(a[k]);
    test::check_return_type<mapped_type>::equals_ref(a.at(k));

    X const b = a;
    test::check_return_type<mapped_type const>::equals_ref(b.at(k));
}
开发者ID:，项目名称:，代码行数:11，代码来源:

示例2: main

int main() {
    cout << "main() invoked" << endl;
    //f5() = X(1); // OK -- non-const return value
    const X x = f5() = X(1);
    x.output();
    //f5().modify(); // OK
// Causes compile-time errors:
//! f7(f5());
//! f6() = X(1);
//! f6().modify();
//! f7(f6());
} ///:~
开发者ID:，项目名称:，代码行数:12，代码来源:

示例3: main

int main()
{
    X x1;
    const X x2 = x1;
    volatile X x3;
    volatile const X x4 = x2;

    x1.display();
    x2.display();
    x3.display();
    x4.display();

    return 0;
}
开发者ID:amitesh-singh，项目名称:algorithms，代码行数:14，代码来源:volatile_memfunction.cpp

示例4: foo

namespace at_ns_scope_within_class_member {
 struct X {
  static void foo(double d) { } 
  auto test() {
    auto L = [](auto a) {
      print("a = ", a, "\n");
      foo(a);
      return [](decltype(a) b) {
        foo(b);
        foo(sizeof(a) + sizeof(b));
        return [](auto ... c) {
          print("c = ", c ..., "\n");
          foo(decltype(b){});
          foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
          return [](decltype(c) ... d) ->decltype(a) { //expected-note{{candidate}}
            print("d = ", d ..., "\n");
            foo(decltype(b){});
            foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
            return decltype(a){};
          };
        };
      };
    };
    return L;
  }
};
X x;
auto L = x.test();
auto L_test = L('4');
auto M = L('3');
auto M_test = M('a');
auto N = M('x');
auto O = N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
char (*np)(const char*, int, const char*, double, const char*, int) = O;
auto NP_result = np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
int (*np2)(const char*, int, const char*, double, const char*, int) = O; // expected-error{{no viable conversion}}
  
} //end at_ns_scope_within_class_member
开发者ID:，项目名称:，代码行数:38，代码来源:

示例5: unordered_test

void unordered_test(X&, Key& k, T& t, Hash& hf, Pred& eq)
{
    typedef BOOST_DEDUCED_TYPENAME X::key_type key_type;
    typedef BOOST_DEDUCED_TYPENAME X::hasher hasher;
    typedef BOOST_DEDUCED_TYPENAME X::key_equal key_equal;
    typedef BOOST_DEDUCED_TYPENAME X::size_type size_type;

    typedef BOOST_DEDUCED_TYPENAME X::iterator iterator;
    typedef BOOST_DEDUCED_TYPENAME X::const_iterator const_iterator;
    typedef BOOST_DEDUCED_TYPENAME X::local_iterator local_iterator;
    typedef BOOST_DEDUCED_TYPENAME X::const_local_iterator const_local_iterator;

    typedef BOOST_DEDUCED_TYPENAME boost::BOOST_ITERATOR_CATEGORY<iterator>::type iterator_category;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_difference<iterator>::type iterator_difference;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_pointer<iterator>::type iterator_pointer;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_reference<iterator>::type iterator_reference;

    typedef BOOST_DEDUCED_TYPENAME boost::BOOST_ITERATOR_CATEGORY<local_iterator>::type local_iterator_category;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_difference<local_iterator>::type local_iterator_difference;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_pointer<local_iterator>::type local_iterator_pointer;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_reference<local_iterator>::type local_iterator_reference;

    typedef BOOST_DEDUCED_TYPENAME boost::BOOST_ITERATOR_CATEGORY<const_iterator>::type const_iterator_category;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_difference<const_iterator>::type const_iterator_difference;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_pointer<const_iterator>::type const_iterator_pointer;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_reference<const_iterator>::type const_iterator_reference;

    typedef BOOST_DEDUCED_TYPENAME boost::BOOST_ITERATOR_CATEGORY<const_local_iterator>::type const_local_iterator_category;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_difference<const_local_iterator>::type const_local_iterator_difference;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_pointer<const_local_iterator>::type const_local_iterator_pointer;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_reference<const_local_iterator>::type const_local_iterator_reference;

    BOOST_MPL_ASSERT((boost::is_same<Key, key_type>));
    boost::function_requires<boost::CopyConstructibleConcept<key_type> >();
    boost::function_requires<boost::AssignableConcept<key_type> >();

    BOOST_MPL_ASSERT((boost::is_same<Hash, hasher>));
    test::check_return_type<std::size_t>::equals(hf(k));

    BOOST_MPL_ASSERT((boost::is_same<Pred, key_equal>));
    test::check_return_type<bool>::convertible(eq(k, k));

    boost::function_requires<boost::InputIteratorConcept<local_iterator> >();
    BOOST_MPL_ASSERT((boost::is_same<local_iterator_category, iterator_category>));
    BOOST_MPL_ASSERT((boost::is_same<local_iterator_difference, iterator_difference>));
    BOOST_MPL_ASSERT((boost::is_same<local_iterator_pointer, iterator_pointer>));
    BOOST_MPL_ASSERT((boost::is_same<local_iterator_reference, iterator_reference>));

    boost::function_requires<boost::InputIteratorConcept<const_local_iterator> >();
    BOOST_MPL_ASSERT((boost::is_same<const_local_iterator_category, const_iterator_category>));
    BOOST_MPL_ASSERT((boost::is_same<const_local_iterator_difference, const_iterator_difference>));
    BOOST_MPL_ASSERT((boost::is_same<const_local_iterator_pointer, const_iterator_pointer>));
    BOOST_MPL_ASSERT((boost::is_same<const_local_iterator_reference, const_iterator_reference>));

    X(10, hf, eq);
    X a(10, hf, eq);
    X(10, hf);
    X a2(10, hf);
    X(10);
    X a3(10);
    X();
    X a4;

    BOOST_DEDUCED_TYPENAME X::value_type* i = 0;
    BOOST_DEDUCED_TYPENAME X::value_type* j = 0;

    X(i, j, 10, hf, eq);
    X a5(i, j, 10, hf, eq);
    X(i, j, 10, hf);
    X a6(i, j, 10, hf);
    X(i, j, 10);
    X a7(i, j, 10);
    X(i, j);
    X a8(i, j);

    X const b;
    sink(X(b));
    X a9(b);
    a = b;

    test::check_return_type<hasher>::equals(b.hash_function());
    test::check_return_type<key_equal>::equals(b.key_eq());

    const_iterator q = a.cbegin();
    test::check_return_type<iterator>::equals(a.insert(q, t));
    test::check_return_type<iterator>::equals(a.emplace_hint(q, t));

    a.insert(i, j);
    test::check_return_type<size_type>::equals(a.erase(k));

    BOOST_TEST(a.empty());
    if(a.empty()) {
        a.insert(t);
        q = a.cbegin();
        test::check_return_type<iterator>::equals(a.erase(q));
    }

    const_iterator q1 = a.cbegin(), q2 = a.cend();
    test::check_return_type<iterator>::equals(a.erase(q1, q2));

//.........这里部分代码省略.........
开发者ID:，项目名称:，代码行数:101，代码来源:

示例6: container_test

void container_test(X& r, T const&)
{
    typedef BOOST_DEDUCED_TYPENAME X::iterator iterator;
    typedef BOOST_DEDUCED_TYPENAME X::const_iterator const_iterator;
    typedef BOOST_DEDUCED_TYPENAME X::difference_type difference_type;
    typedef BOOST_DEDUCED_TYPENAME X::size_type size_type;

    typedef BOOST_DEDUCED_TYPENAME boost::iterator_value<iterator>::type iterator_value_type;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_value<const_iterator>::type const_iterator_value_type;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_difference<iterator>::type iterator_difference_type;
    typedef BOOST_DEDUCED_TYPENAME boost::iterator_difference<const_iterator>::type const_iterator_difference_type;

    typedef BOOST_DEDUCED_TYPENAME X::value_type value_type;
    typedef BOOST_DEDUCED_TYPENAME X::reference reference;
    typedef BOOST_DEDUCED_TYPENAME X::const_reference const_reference;

    // value_type

    BOOST_MPL_ASSERT((boost::is_same<T, value_type>));
    boost::function_requires<boost::CopyConstructibleConcept<X> >();

    // reference_type / const_reference_type

    BOOST_MPL_ASSERT((boost::is_same<T&, reference>));
    BOOST_MPL_ASSERT((boost::is_same<T const&, const_reference>));

    // iterator

    boost::function_requires<boost::InputIteratorConcept<iterator> >();
    BOOST_MPL_ASSERT((boost::is_same<T, iterator_value_type>));
    BOOST_MPL_ASSERT((boost::is_convertible<iterator, const_iterator>));

    // const_iterator

    boost::function_requires<boost::InputIteratorConcept<const_iterator> >();
    BOOST_MPL_ASSERT((boost::is_same<T, const_iterator_value_type>));

    // difference_type

    BOOST_MPL_ASSERT((boost::mpl::bool_<
                std::numeric_limits<difference_type>::is_signed>));
    BOOST_MPL_ASSERT((boost::mpl::bool_<
                std::numeric_limits<difference_type>::is_integer>));
    BOOST_MPL_ASSERT((boost::is_same<difference_type,
                iterator_difference_type>));
    BOOST_MPL_ASSERT((boost::is_same<difference_type,
                const_iterator_difference_type>));

    // size_type

    BOOST_MPL_ASSERT_NOT((boost::mpl::bool_<
                std::numeric_limits<size_type>::is_signed>));
    BOOST_MPL_ASSERT((boost::mpl::bool_<
                std::numeric_limits<size_type>::is_integer>));

    // size_type can represent any non-negative value type of difference_type
    // I'm not sure about either of these tests...
    size_type max_diff((std::numeric_limits<difference_type>::max)());
    difference_type converted_diff(max_diff);
    BOOST_TEST((std::numeric_limits<difference_type>::max)()
            == converted_diff);

    BOOST_TEST(
        static_cast<comparison_type>(
            (std::numeric_limits<size_type>::max)()) >
        static_cast<comparison_type>(
            (std::numeric_limits<difference_type>::max)()));

    // I don't test the runtime post-conditions here.
    X u;
    BOOST_TEST(u.size() == 0);
    BOOST_TEST(X().size() == 0);

    X a,b;

    sink(X(a));
    X u2(a);
    X u3 = a;

    X* ptr = new X();
    X& a1 = *ptr;
    (&a1)->~X();

    X const a_const;
    test::check_return_type<iterator>::equals(a.begin());
    test::check_return_type<const_iterator>::equals(a_const.begin());
    test::check_return_type<const_iterator>::equals(a.cbegin());
    test::check_return_type<const_iterator>::equals(a_const.cbegin());
    test::check_return_type<iterator>::equals(a.end());
    test::check_return_type<const_iterator>::equals(a_const.end());
    test::check_return_type<const_iterator>::equals(a.cend());
    test::check_return_type<const_iterator>::equals(a_const.cend());

    a.swap(b);
    test::check_return_type<X>::equals_ref(r = a);
    test::check_return_type<size_type>::equals(a.size());
    test::check_return_type<size_type>::equals(a.max_size());
    test::check_return_type<bool>::convertible(a.empty());

    // Allocator
//.........这里部分代码省略.........
开发者ID:，项目名称:，代码行数:101，代码来源:

示例7: main

int main() {
  X x1(10);
  const X x2(20);
  x1.f();
  x2.f();
} ///:~
开发者ID:BigR-Lab，项目名称:CodeRes_Cpp，代码行数:6，代码来源:ConstMember.cpp

示例8: main

int main() {
  dstY = dstX = srcX;
  srcX.pr();
  dstX.pr();
  dstY.pr();
}
开发者ID:4ntoine，项目名称:clang，代码行数:6，代码来源:copy-assign-synthesis-1.cpp

示例9: show

	void show(){ cout<<"class C,  show\n";
		         cout<<(s?s:"0")<<endl;
		//		 cout<<a.i<<endl;    // kein Zugriff !
		         a.display();
				 p->display();
				 r.display();
	}
开发者ID:genericFJS，项目名称:htw，代码行数:7，代码来源:Enth1.cpp

示例10: permute

 void permute() { x.permute(); }
开发者ID:archfp，项目名称:floorplan，代码行数:1，代码来源:Composition2.cpp

示例11: xxx

void xxx () {
    x.f (1);
}
开发者ID:pjump，项目名称:gcc，代码行数:3，代码来源:niklas02.C

示例12: f

 void f(int ii) { i = ii; x.set(ii); }
开发者ID:archfp，项目名称:floorplan，代码行数:1，代码来源:Composition2.cpp

示例13: g

 int g() const { return i * x.read(); }
开发者ID:archfp，项目名称:floorplan，代码行数:1，代码来源:Composition2.cpp

示例14: asignar

	void asignar(int i,char c) { x.asignar (i,c); }
开发者ID:agudeloandres，项目名称:C_Struct_Files，代码行数:1，代码来源:P119.CPP

示例15: F

	int F(char *p) {
		int i = x.G(p);
		return i;
	}
开发者ID:agudeloandres，项目名称:C_Struct_Files，代码行数:4，代码来源:P119.CPP


注：本文中的X类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。