p->data = (int*)malloc(sizeof(int)); compare to (int*)p->data = (int*)malloc(sizeof(int));

typedef struct _DListNode { struct _DListNode* prev; struct _DListNode* next; void* data; }DListNode; in gcc : DListNode *p = NULL; p = (DListNode*)malloc(sizeof(DListNode)); p->data = (int*)malloc(sizeof(int)); scanf("%d", (int*)p->data); compile correctly. in gcc : DListNode *p = NULL; p = (DListNode*)malloc(sizeof(DListNode)); (int*)p->data = (int*)malloc(sizeof(int)); scanf("%d", (int*)p->data); There is a problem on : (int*)p->data = (int*)malloc(sizeof(int)); -------error: lvalue required as left operand of assignment. the difference: scanf("%d", (int*)p->data) , (int*)p->data = (int*)malloc(sizeof(int)), p->data = (int*)malloc(sizeof(int));

以上就是 p->data = (int*)malloc(sizeof(int)); compare to (int*)p->data = (int*)malloc(sizeof(int));的详细内容,更多请关注web前端其它相关文章!

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