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最新评论
http://topic.csdn.net/t/20061205/22/5209161.html
一、函数名后跟着const的函数,不能操作data-member
二、const可修饰函数名的前、中、后,中后会重载(前貌似不会吧)
一、函数名后跟着const的函数,不能操作data-member
二、const可修饰函数名的前、中、后,中后会重载(前貌似不会吧)
#include <iostream> #include <string> using namespace std; class R { public: R(int r1,int r2) {R1=r1;R2=r2;} void print(); void print() const; private: int R1,R2; }; void R::print() { cout << R1 - R2 << endl; } void R::print() const // assignment of data-member `R::R1' in read-only structure { cout << R1 + R2 << endl; } int main(int argc,char* argv[]) { R a(5,4); a.print(); const R b(5,4); // R被const修饰了,对象只读 b.print(); return 0; }
发表评论
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float equal
2013-05-23 18:21 818- (BOOL)floatA:(float)f1 equalB ... -
C++序列化
2012-07-12 09:51 588http://hi.baidu.com/ewook/item/ ... -
C++著名内裤
2011-12-02 14:00 8101、C++各大有名库的介绍 ... -
C++写C
2011-09-06 17:23 637在C++中写C,标准头文件写法 #ifndef __AB ... -
errno.h
2011-05-05 14:27 687#define EPERM 1 ... -
__cplusplus
2011-04-21 15:09 736http://www.cnblogs.com/stonecra ... -
Pthread__常用
2011-04-21 11:46 851http://blogold.chinaunix.net/u/ ... -
常用预编译
2011-04-21 10:32 651#if defined(WIN32) || defined ... -
C++__容器
2011-04-18 10:16 552http://apps.hi.baidu.com/share/ ... -
C++模板
2011-03-29 14:27 623内容主要来至《钱能C++程序设计教程》&《C++ Pr ... -
交叉引用、前置声明
2011-03-02 09:40 802有两个类相互引用了,编译器报错。 原因是两个类交叉引用: A ... -
typedef的四个用途和两个陷阱
2010-12-14 12:34 650http://hi.baidu.com/changfeng01 ... -
第五届开源小组招新题目
2010-12-03 21:56 744这是学校的开源小组招新题。 08年时我是第二届的组长,不知不觉 ... -
string const char*
2010-12-02 16:13 770http://topic.csdn.net/u/2008092 ... -
CPP Container
2010-11-10 09:20 713延后整理。。。 -
C语言运算符优先级
2010-11-02 17:45 787优先级 运算符 ... -
point point
2010-11-02 17:23 618http://learn.akae.cn/media/ch23 ... -
位运算
2010-11-01 11:33 781千百年来,位运算始终没出现在我写的代码里,今天终于出现了。 ... -
Unix环境下操作特大文件
2010-11-01 11:03 612http://hi.baidu.com/jiangfeng11 ... -
GCC在C语言中内嵌汇编
2010-10-22 14:48 1367http://hi.baidu.com/liu_bin0101 ...
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