…
int exterint[5][5];
int exterint1[5];
…
int **temp1;
int *temp2;
….
temp2=exterint1; //*****
temp1 = exterint; //xxxxxxxxx “ERROR GIVING LINE”
In the above case exterint1 will be pointing to the first element of the
integer array, so it can be assigned to a integer pointer.
So the assignment
temp2=exterint1; is correct.
While in case of exterint , it will be pointing to the first element to the
first row , again its pointing to a integer not a pointer to the integer while
temp1 is a pointer to the pointer to an integer.
So the assignment
temp1 = exterint gives an error.
Thanks & Regards,
Saquib Imam
From:
kernelnewbies-bounce@xxxxxxxxxxxx [mailto:kernelnewbies-bounce@xxxxxxxxxxxx] On Behalf Of Cihan Kömeçoglu
Sent: Monday, December 24, 2007
4:26 PM
To: C_C_Kuo@xxxxxxxxxxxxxx
Cc: kernelnewbies@xxxxxxxxxxxx
Subject: Re: Question about double
pointers assignment
I think , the problem is there
temp1 = exterint
temp1 is pointer to pointer,not pointer
to int but you assigned adress of exterint1 and this array of integer; not
array of pointer.
For example like this give you same
warning:
int * temp1;
int a;
temp1 = a;
Warrning:“assignment
from incompatible pointer type
This is correct if you do like below
int *temp1
int exterint[5];
temp1 = exterint;
Monday, December 24, 2007, 11:49:37 AM,
you wrote:
|
>
|
Dear all:
I write a program like below:
#include<stdio.h>
#include<stdlib.h>
int exterint[5][5];
int exterint1[5];
int main(void){
int index0, index1;
int **temp1;
int *temp2;
temp2=exterint1; //*****
temp1 = exterint; //xxxxxxxxx
…..
…..}
The compiler will warn me that at line marked as
xxxxx is “assignment from incompatible pointer type.”
But “******” doesn’t get any warning.
Is there any restriction about assigning multi-layer
array or something about pointer I miss?
Appreciate your help,
cckuo
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