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c++ Lession 4:内联函数,函数重载,函数缺省参数 | ____查无此人〆

https://algorithmlixuan.github.io/2018/10/11/c++lession4/#more

一、内联函数 前言:函数调用是有时间开销的,如果函数本身只有几行代码,而且执行很快,那么相比下调用函数所产生的这个开销就会显得比较大。 为了减少函数调用的开销,就引入内联函数机制。编译器处理对内联函数的调用语句,是将整个函数的代码插入到调用语句处,而不会产生调用语句,关键字为inline。举个栗子: 但内联函数也是有缺点的,以下列出了内联函数的优缺点: 优点 缺点 1. 内联函数

c++ Lession 4:内联函数,函数重载,函数缺省参数 | ____查无此人〆

https://algorithmlixuan.github.io/2018/10/09/c++lession4/#more

一、内联函数 前言:函数调用是有时间开销的,如果函数本身只有几行代码,而且执行很快,那么相比下调用函数所产生的这个开销就会显得比较大。 为了减少函数调用的开销,就引入内联函数机制。编译器处理对内联函数的调用语句,是将整个函数的代码插入到调用语句处,而不会产生调用语句,关键字为inline。举个栗子: 但内联函数也是有缺点的,以下列出了内联函数的优缺点: 优点 缺点 1. 内联函数

c++ Lesson 3:动态内存分配 | ____查无此人〆

https://algorithmlixuan.github.io/2018/10/11/c++lesson3/

一、用new运算符实现动态内存分配第一种用法,分配一个变量 123456P = new T;/* T是任意类型名,P是类型为T的指针 *动态分配出一片大小为sizeof(T)字节的内存空间 *并将改内存的起始地址赋值给P */ 举一个具体的栗子: 123int *p;p = new int;p = 5; 第二种用法,分配一个数组 12345678/ * T :任意类型名 * P :类型为T

c++ Lesson 3:动态内存分配 | ____查无此人〆

https://algorithmlixuan.github.io/2018/10/05/c++lesson3/

一、用new运算符实现动态内存分配第一种用法,分配一个变量 123456P = new T;/* T是任意类型名,P是类型为T的指针 *动态分配出一片大小为sizeof(T)字节的内存空间 *并将改内存的起始地址赋值给P */ 举一个具体的栗子: 123int *p;p = new int;p = 5; 第二种用法,分配一个数组 12345678/ * T :任意类型名 * P :类型为T

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