Re-argument: const char *, char const * and char * const

Http://www.cnblogs.com/jonnyyu/archive/2005/01/10/89766.html

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The difference between const char *, char const *, and char * const is almost the same as that in each c ++ interview.

In fact, there are only three declarative methods that are very similar and easy to remember.
Bjarne provides a mnemonic method in his c ++ programming language:
Read a statement from the right to the left.

Char * const CP; (* read as pointer)
CP is a const pointer to Char

Const char * P;
P is a pointer to const char;

Char const * P;
Similar to C ++, because the const * operator does not exist in C ++, const can only belong to the previous type.