const char*, char const*, char*const的区别

(本文参考了http://blog.csdn.net/yingxunren/article/details/3968800)

Bjarne在《The C++ Programming Language》给出过一个助记的方法:

把一个声明从右向左读( * 读成 pointer to )

const在*后面,表示指针不变:

char * const cp; //cp is a const pointer to char

const在*前,表示值不变:

const char * p; //p is a pointer to const char;

char const * p; //同上

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