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Need help changing the address of an array
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Hi,
I am trying to change the address in an array using *nums++. When I run the program, however, the first number in the array is skipped. What am I missing? How do I get the first number to display?
I am trying to change the address in an array using *nums++. When I run the program, however, the first number in the array is skipped. What am I missing? How do I get the first number to display?
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Join Date: Dec 2005
Posts: 5,850
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> i = *nums++;
Well this does nothing, except to skip the first entry of the array.
You lose i in the following assignment in the for loop.
Well this does nothing, except to skip the first entry of the array.
You lose i in the following assignment in the for loop.
>What am I missing? How do I get the first number to display?
Move
In print() remove
Move
#define NUMBERS 7 outside of main so the function print can see it. In print() remove
i= *nums++ which is doing harm and producing nothing since you change the value of i inside the loop to start at 1 anyway. Last edited by Aia; Dec 28th, 2008 at 12:59 pm.
Not to be picky, but
(But it should have been outside the function anyway.)
#define NUMBERS is a pre-processor directive and doesn't get scope.(But it should have been outside the function anyway.)
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Move#define NUMBERS 7outside of main so the function print can see it.
In print() removei= *nums++which is doing harm and producing nothing since you change the value of i inside the loop to start at 1 anyway.
Last edited by RenFromPenn; Dec 28th, 2008 at 5:48 pm.
>I tried this and now I have the opposite problem. The last number doesn't print. Suggestions?
start i in the loop at 0 or stop it when is < or equal to NUMBERS
start i in the loop at 0 or stop it when is < or equal to NUMBERS
Last edited by Aia; Dec 28th, 2008 at 6:01 pm.
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Originally Posted by Aia 
start i in the loop at 0 or stop it when is < or equal to NUMBERS
Last edited by RenFromPenn; Dec 28th, 2008 at 6:05 pm.
see what i have made changes in u r program
#include <stdio.h>
int print(int[]);
int main()
{
#define NUMBERS 7
int nums[] = {2, 4, 5, 7, 9, 11, 13};
print(nums);
return 0;
}
int print (int *nums)
{
int i;
i = (*nums)++;
for (i = 1; i <= NUMBERS; i++, nums++)
printf("Address %d contains number %d\n", i, *nums );
return 0;
}
#include <stdio.h>
int print(int[]);
int main()
{
#define NUMBERS 7
int nums[] = {2, 4, 5, 7, 9, 11, 13};
print(nums);
return 0;
}
int print (int *nums)
{
int i;
i = (*nums)++;
for (i = 1; i <= NUMBERS; i++, nums++)
printf("Address %d contains number %d\n", i, *nums );
return 0;
}
somnathsarode if you are going to post code, especially in response to a thread, please use the appropriate code tags.
For this forum:
[code=c]
/* your code goes here */
[/code]
Your response followed the original poster saying "Thanks ... did just what I wanted." Almost seems like the thread was answered doesn't it.
For this forum:
[code=c]
/* your code goes here */
[/code]
Your response followed the original poster saying "Thanks ... did just what I wanted." Almost seems like the thread was answered doesn't it.
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