Pipe is a worm hole connecting C and C++
In C programming language, the observer design pattern is implemented with function pointer (aka callback function). But in Qt library, it introduces signal and slot. How to link a callback function from the C callback function to the C++ siganl and slot is a problem I encounter. Call back function can only be static, but signal and slot can not. There are some triky way to pretend a non-static function to a static function. But the easiest way is to use pipe. the callback function create a pipe and do the read operation, while the siganl function wait for and read at the other end of the pipe.
The pipe is like a worm hole connecting C and C++, two different time and space. How cool!
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VS2005中检测和更正 C/C++ 代码缺陷
2006-11-26 15:55
VS2005中提供的检测方法:
1 IDE（集成开发环境）集成
2 #pragma 支持
3 批注支持
4 作为签入策略的一部分运行分析工具
5 Team System 与 Team Build 的集成
6 命令行支持
一 代码分析工具用于检测常见的编码错误，例如缓冲区溢出、内存未初始化、空指针 ......
【原型】
printf("<格式化字符串>
", <参量表>
);
int printf
(const char *format, ...);
int fprintf
(FILE *stream, const char *format, ...);
int sprintf
(char *str, const char *format, ...);
int snprintf
(char *str, size_t size, const char *format, ...);
vp ......
一、基本知识
指针和引用的声明方式：
声明指针：char* pc;
声明引用：char& rc = 0;
它们的区别：
①从现象上看，指针在运行时可以改变其所指向的值，而引用一旦和某个对象绑定后就不再改变。这句话可以理解为：指针可以被重新赋值以指向另一个不同的对象。但是引用则总是指向在初始化时被指定的对 ......
1. 给定等式 A B C D E 其中每个字母代表一个数字，且不同数字对应不
D F G &nbs ......
打印自己的一段漂亮C程序
#include <stdio.h>
int main()
{
char *p ="#include <stdio.h>%c int main(){char *p=%c%s%c; printf(p, 10, 34, p, 34);}";
printf(p, 10, 34, p, 34);
} ......
