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在ptt上的題目.
how many bytes will be allocated ? (Assume one pointer: 4 bytes)
1) char **p;
2) char *p[20];
3) char (*p)[20];
4) char (*p)[20][40];
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Ans:
1) 4
2) 80
3) 4
4) 4
No 2.
Declares an array of pointer to characters.
array length = 20,
pointer length = 4,
20 * 4 = 80 bytes.
No3,4 宣告是指向維度 [20] 陣列的指標, 指向維度 [20][40] 陣列的指標
how many bytes will be allocated ? (Assume one pointer: 4 bytes)
1) char **p;
2) char *p[20];
3) char (*p)[20];
4) char (*p)[20][40];
---
Ans:
1) 4
2) 80
3) 4
4) 4
No 2.
Declares an array of pointer to characters.
array length = 20,
pointer length = 4,
20 * 4 = 80 bytes.
No3,4 宣告是指向維度 [20] 陣列的指標, 指向維度 [20][40] 陣列的指標
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