 |  |  |  |  |  |  |  |
func return 2 values
Please support our C advertiser: Programming Forums - DaniWeb Sister Site
 |
•
•
Join Date: Nov 2008
Posts: 81
Reputation: 
Solved Threads: 8
Junior Poster in Training
Ok, let's go step by step.
We will create a struct that has two members, a char and an int.
Go on and declare the struct.
We will create a struct that has two members, a char and an int.
Go on and declare the struct.
grumpier
I didn't ask you to write the func that i want, but I want another example but with parameters to understand the way.
minas I have write the func with structer
I didn't ask you to write the func that i want, but I want another example but with parameters to understand the way.
minas I have write the func with structer
#include<stdio.h>
struct mytype
{
int ok;
char ch;
};
struct mytype fundCalculation(int a,int b,int c)
{
struct mytype tmp;
if(c==a+b) {tmp.ok=1;tmp.ch='+';}
else if(c==a-b) {tmp.ok=1;tmp.ch='-';}
else if(c==a*b) {tmp.ok=1;tmp.ch='*';}
else if(c==a/b) {tmp.ok=1;tmp.ch='/';}
else {tmp.ok=0;tmp.ch=' ';}
return tmp;
}
main()
{
printf("%i %c ",fundCalculation(3,4,12).ok,fundCalculation(3,4,12).ch);
getchar();
} •
•
Join Date: Nov 2008
Posts: 81
Reputation:
Solved Threads: 8
Junior Poster in Training
Well it works, good job!
Some tips:
Use this form when declaring a struct.
So you don't have to prefix mytype with struct all the time. Now you can do this:
Some tips:
Use this form when declaring a struct.
C Syntax (Toggle Plain Text)
So you don't have to prefix mytype with struct all the time. Now you can do this:
C Syntax (Toggle Plain Text)
Last edited by minas1; Jan 10th, 2009 at 7:40 am.
•
•
Join Date: Nov 2008
Posts: 81
Reputation:
Solved Threads: 8
Junior Poster in Training
Then instead of ints in the argument list, use pointers to ints.
a pointer to int: int *a = 0;
when you call the function, you need to pass addresses.
so
int x = 4;
callSomeFuncTakingPointers(&x);
when you need to access a value stored in a pointer, you the * operator.
int x = 3;
int *p = &x;
printf(%d, *p);
If you want to learn more about pointers,
http://www.cplusplus.com/doc/tutorial/pointers.html
a pointer to int: int *a = 0;
when you call the function, you need to pass addresses.
so
int x = 4;
callSomeFuncTakingPointers(&x);
when you need to access a value stored in a pointer, you the * operator.
int x = 3;
int *p = &x;
printf(%d, *p);
If you want to learn more about pointers,
http://www.cplusplus.com/doc/tutorial/pointers.html
Last edited by minas1; Jan 10th, 2009 at 8:01 am.
like this ?
int findCalculation(int *a, int *b, int *c)
{
char ch;
if (*a - *b == *c)
return 1;
else return 0;
if (*a + *b == *c)
return 1;
else return 0;
if (*a * *b == *c)
return 1;
else return 0;
if (*a / *b == *c)
return 1;
else return 0;
} •
•
Join Date: Nov 2008
Posts: 81
Reputation:
Solved Threads: 8
Junior Poster in Training
Yes, but use our function that returns the struct.
?!! •
•
Join Date: Nov 2008
Posts: 81
Reputation:
Solved Threads: 8
Junior Poster in Training
C Syntax (Toggle Plain Text)
Instead of passing ints, pass pointers to ints. you did it above; try it and show us, even if it doesn't compiles.
like this ??
C Syntax (Toggle Plain Text)
Last edited by titosd; Jan 10th, 2009 at 8:32 am.
|
Similar Threads
- How do I recognise strings and numbers (Python)
- How to create a .lib from a .def? (C++)
- Any help is appreciated (C++)
- so I find myself here again (C++)
- Return more than one value from a single function (C++)
Other Threads in the C Forum
- Previous Thread: Thread Scheduling - Please Help
- Next Thread: An implementation idea requied in Compiler Interface
| 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.
Latest C Posts
- Today's Posts
- Unanswered Threads
Related Forum Features
#include * ansi append array arrays asterisks bash binarysearch centimeter changingto char character convert copyimagefile cprogramme creafecopyofanytypeoffileinc database dynamic execv feet fgets file floatingpointvalidation fork framework function getlogicaldrivestrin givemetehcodez grade gtkwinlinux hacking histogram ide inches include incrementoperators infiniteloop initialization input interest intmain() iso kernel keyboard kilometer license linked linkedlist linux list lists locate looping lowest matrix meter microsoft number oddnumber opendocumentformat openwebfoundation overwrite owf pdf pointer posix power probleminc process program programming radix recursion recv recvblocked research reversing segmentationfault sequential single socket socketprograming socketprogramming standard strchr string suggestions systemcall test testing threads turboc unix urboc user variable wab whythiscodecausesegmentationfault windowsapi
