Ad:

C Discussion Thread
Unsolved
Views: 1949

Sep 29th, 2005

Basic Concept

Expand Post »

C Syntax (Toggle Plain Text)
# include<stdio.h>
void main()
{  int p;
    p = (1,2,2,100,1);
    printf("%d",p);
}
# include<stdio.h>
void main()
{  int p;
    p = (1,2,2,100,1);
    printf("%d",p);
}

I dont know what will be the output . Can anyone please tell me what exactly second line implies ?? :rolleyes:

Similar Threads

Hamming codes encoder/decoder in C or C++ in C++
Clearing b-4 selling... in Storage
accessing common user-defined functions in ASP.NET
Help me please? in Java
Im new in C++

harshchandra

Reputation Points: 7

Solved Threads: 1

Junior Poster in Training

Offline

68 posts
since Nov 2004

Permalink

Sep 29th, 2005

Re: Basic Concept

comma ' , ' operator has left to right associativity

C Syntax (Toggle Plain Text)
# include<stdio.h>
void main()
{  int p;
    p = 1,2;
    printf("%d",p);
}
# include<stdio.h>
void main()
{  int p;
    p = 1,2;
    printf("%d",p);
}

In this case output will be 1

But if we apply ( )
then last value is assigned to p and output will be 2

SpS

Reputation Points: 70

Solved Threads: 32

Posting Pro

Offline

598 posts
since Aug 2005

Permalink

Sep 30th, 2005

Re: Basic Concept

Quote originally posted by harshchandra ...

C Syntax (Toggle Plain Text)
# include<stdio.h>
void main()
{  int p;
    p = (1,2,2,100,1);
    printf("%d",p);
}
# include<stdio.h> void main() { int p; p = (1,2,2,100,1); printf("%d",p); }
I dont know what will be the output . Can anyone please tell me what exactly second line implies ?? :rolleyes:

though p should be declare as an array int p[]

keevin

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

3 posts
since Sep 2005

Permalink

Sep 30th, 2005

Re: Basic Concept

if p were an array, then the initializer list would have to be in braces, not parentheses, like this

C Syntax (Toggle Plain Text)
	int p[] = {1,2,2,100};
	int p[] = {1,2,2,100};

But the above is entirely different than the code you originally posted.

Ancient Dragon

Sponsor

Team Colleague

Featured Poster

Reputation Points: 5608

Solved Threads: 2283

Retired and Enjoying Life

Offline

21,963 posts
since Aug 2005

Permalink

Oct 10th, 2005

Re: Basic Concept

># include<stdio.h>
>void main()
>{ int p;
> p = 1,2;
> printf("%d",p);
>}
>In this case output will be 1

what will be the output, if i make a bit of change in the existing code, i mean:::

# include<stdio.h>
void main()
{ int p = 1,2;
printf("%d",p);
}

i got error in this case, i dont know , why its producing error in this case, when it looks similar to the old one??

Rajendra Bansal

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

1 posts
since Sep 2005

Permalink

Oct 10th, 2005

Re: Basic Concept

parentheses are required as shown in previous posts.

Ancient Dragon

Sponsor

Team Colleague

Featured Poster

Reputation Points: 5608

Solved Threads: 2283

Retired and Enjoying Life

Offline

21,963 posts
since Aug 2005

Permalink

Oct 13th, 2005

Re: Basic Concept

The same..
Paranthesis will do the work for getting p=(1,2)
so o/p will be 2.

akshatvig19

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

2 posts
since Oct 2005

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

Previous Thread in C Forum Timeline: Fibonacci number

Next Thread in C Forum Timeline: strtok() function questions <C programming>

DaniWeb Message

Cancel Changes

User Name
Password