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. 在c中分为这几个存储区
1.栈 - 由编译器自动分配释放
2.堆 - 一般由程序员分配释放，若程序员不释放，程序结束时可能由OS回收
3.全局区（静态区），全局变量和静态变量的存储是放在一块的，初始化的全局变量和静态变量在一块区域，未初始化的全局变量和未初始化的静态变量在相邻的另一块区域。- 程序结束释放
4.� ......
