:::
Browsing this Thread:
1 Anonymous Users
|
Re: C18寫法問題?
|
||||
|---|---|---|---|---|
|
高級會員
 
|
另外再請教一個問題.....
C18指標跟雙層陣列的關係?? const far rom unsigned char a[4][3] = { { 0x00,0x01,0x02 }, { 0x10,0x11,0x12, }, { 0x20,0x21,0x22, }, { 0x30,0x31,0x32 } }; void main(void) { far rom unsigned char * pt_num; unsigned char data; pt_num = a; //a[0]<-----type mismatch in assignmen data = *pt_num; //0x00 pt_num = a+1; //a[1]<----type mismatch in assignmen data = *pt_num; //0x10 pt_num = *(a); //a[0][0] <--ok data = *pt_num; //0x00 pt_num = *(a)+1;//a[0][1] <--ok data = *pt_num; //0x01 } 要如何用指標直接索引第1個維度? a[0]~a[4]
發表於: 2006/11/16 1:56
|
|||
|
||||
|
Re: C18寫法問題?
|
||||
|---|---|---|---|---|
|
版主
 
|
我試了ㄧ下，C18 確實有此問題，已向美國那邊反映此問題，謝謝告知!
發表於: 2006/11/15 13:50
|
|||
|
||||
|
Re: C18寫法問題?
|
||||
|---|---|---|---|---|
|
高級會員
|
真的是小指頭無意識下多按了個分號....
拿掉就OK了...感謝 不過.. data_a8 = 0x10; <----- ok 替換後 => A[8] = 0x10; 這樣子complier可以過耶? 而且就像愛大講的...A[8]應該不存在... 嗯...要避免...感謝愛大幫忙~ 
發表於: 2006/11/15 8:38
|
|||
|
||||
|
Re: C18寫法問題?
|
||||
|---|---|---|---|---|
|
中級會員
|
把在#define那行的引號拿掉。
但是，C18應該有問題了！你的變量A應該是由0~7而已，卻能在C18的編譯下瞞天過海！ 
發表於: 2006/11/14 19:46
|
|||
|
||||
|
C18寫法問題?
|
||||
|---|---|---|---|---|
|
高級會員
|
unsigned char A[8];
#define data_a8 A[8]; void main(void) { data_a8 = 0x10; <----- ok if (data_a8 <= 0x55) <------ syntax error ???? data_a8 ++; } 要改成 if (A[8] <= 0x55) 才沒問題.... 在判斷式裡不能這樣用嗎?
發表於: 2006/11/14 17:40
|
|||
|
||||
You can view topic.
你 不可以 發起新主題
You cannot reply to posts.
You cannot edit your posts.
You cannot delete your posts.
You cannot add new polls.
You cannot vote in polls.
You cannot attach files to posts.
You cannot post without approval.
You cannot use topic type.
You cannot use HTML syntax.
You cannot use signature.
You cannot create PDF files.
You cannot get print page.
