[C++] 修飾字const 筆記
鑑於const 每次看每次忘...筆記一下
Data func(A *p) const;
=>修飾 this ptr 所指的data can't be assigned!
Data func(const A *p);
=>修飾P所指的value can't be assigned!
Data func(A * const p);
=>修飾 p所指的address can't be assigned!
Data func(A *p) const;
=>修飾 this ptr 所指的data can't be assigned!
Data func(const A *p);
=>修飾P所指的value can't be assigned!
Data func(A * const p);
=>修飾 p所指的address can't be assigned!
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