 |  |  |  |  |  |  |  |
Need help changing the address of an array
Please support our C advertiser: Programming Forums - DaniWeb Sister Site
Thread Solved |
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?
C Syntax (Toggle Plain Text)
•
•
Join Date: Dec 2005
Posts: 5,850
Reputation: 
Solved Threads: 749
> 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.)
•
•
•
•
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.
•
•
•
•
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.
 |
Similar Threads
- Array of string (C)
- Problem declaring class object array (C++)
- file read and buffer problems (C++)
- Changing from reference to address (pointer?) (C++)
- changing values of a struct (C)
- what is the difference between (ptarray[]) AND &(ptarray[i]) in below example (C++)
- replace address - how to? (PHP)
- Graphics In Pixel: Part II (C++)
Other Threads in the C Forum
- Previous Thread: Challange in C
- Next Thread: Algorithm for EBCDIC to ASCII Conversion
| Thread Tools | Search this Thread |
You need to join our community in order to build your list of favorite forums. You can visit the forum index for a listing of all forums.
Related Forum Features
Latest C Posts
- Today's Posts
- Unanswered Threads
#include * ansi array arrays asterisks bash binarysearch calculate centimeter changingto char character convert copyanyfile copyimagefile creafecopyofanytypeoffileinc createprocess() database dynamic execv fgets file floatingpointvalidation fork framework function getlogicaldrivestrin givemetehcodez grade gtkwinlinux histogram ide inches include infiniteloop initialization input interest intmain() iso keyboard km license linked linkedlist linux list looping lowest matrix meter microsoft number oddnumber open opendocumentformat openwebfoundation owf pdf pointer pointers posix power probleminc process program programming pyramidusingturboccodes radix read recursion recv recvblocked research reversing scheduling segmentationfault send sequential single socket socketprogramming standard strchr string suggestions systemcall test testautomation testing threads turboc unix urboc user variable whythiscodecausesegmentationfault win32api windowsapi
