dyingfair的专栏

#include<iostream> #include <string.h> using namespace std; template <typename T, typename F> void Test(T t, F fun) { static int i = 0; i++; cout << fun(t) <<" "<<i<<endl; } double Double(double d) { return d

#include<iostream> using namespace std; class Base { public: Base(int a) : Ba(a) {} public: int Ba; }; class Derived: public Base { public: int Db; int Dc; // 初始化的顺序和变量定义的顺序相同，依次初始化Ba，Db，Dc Derived(int b, int c) : Dc(c), Base(b), Db(Ba + Dc .

#include <iostream> using std::cout; using std::endl; class Base1 { public: Base1() :a_(100) {} virtual void fun1() { cout << "Base1.fun1" << endl; } virtual void fun2() { cout ...

这里的代码参考了如下内容： effective modern c++ https://stackoverflow.com/questions/81870/is-it-possible-to-print-a-variables-type-in-standard-c/56766138#56766138 #include <iostream> #include <type_traits...

#include <iostream> #include <iomanip> using namespace std; int main() { cout << "格式化进制" << endl; long num = 1001; // 不同进制输出, 不支持二进制；八进制和十六进制目前仅支持正整数 cout << "dec： ...

#include <iostream> using namespace std; class Base { public: virtual void fun() { cout << "I am base" << endl; } }; class Derived :public Base { public: void fun() override { c...

一、boost库版本 Version 1.69.0 二、boost库安装 下载源码boost_1_69_0.tar.bz2 解压安装: ./bootstrap.sh; ./b2 install 三、牛刀小试 #include &lt;stdio.h&gt; #include &lt;string.h&gt; #include &lt;iostream&gt; #include ...

以下内容来自于： http://en.cppreference.com/w/cpp/utility/functional/function  对例子进行了相应修改，用于学习更多的细节Class template std::function is a general-purpose polymorphic function wrapper. Instances of std::function ca...

转载自： constexpr specifierconstexpr - specifies that the value of a variable or function can appear in constant expressionsExplanationThe constexpr specifier declares that it is possible to evaluate the...

#include &lt;iostream&gt; #include &lt;functional&gt; #include &lt;string&gt; using namespace std; bool lenLargethanLen(const string &amp;s, string::size_type sz) { return s.length() &gt; sz; } in...

lambda表达式的基本形式，如下：[capture list] (params list) [key word: mutuble] -&gt;return type { func body }说明：(1) [capture list]里面的内容具体形式如下：（2）params list 输入参数，这个和普通的函数一样（3）keyword：mutuble：默认情况下，lambda表达式不会改变一...