JOGG's

One thing passed away does mean one new come along. Keep recording daily trivial stuffs, and always look on the bright side of life. Thanks, God.

在 effective C++ 一書中有提到: use const whenever possible. 今天又遇到了, 來複習一下.   char myStr[] = "Hello";        non-const ptr / non-const data   const char* pStr = myStr;     non-const ptr / const data   char* const pStr = myStr;            const ptr / non-const data   const char* const pStr = myStr;   const ptr / const data 我的理解是：const 是修飾詞,   const char* pStr  =>  pStr 為一個 pointer, 存的變數型態是 char*, 該變數為const.   char* const pStr = > pStr 為一個 const 的 pointer, 存的變數型態為 char*   const char* const pStr =>  pStr 為一個 const 的 pointer, 存的變數型態為 char*, 該變數為const. 另外 const Object * var 等同於 Object const* var.