eager to say 46

[sumedh.....]

#define f(a,b) a+b
#define g(a,b) a*b

main()
{

int m;
m=2*f(3,g(4,5));
printf("\n m is %d",m);
system("pause");
}

what shud be the o/p of prog and why?

 

[Mark Bluemel]

#define f(a,b) a+b
#define g(a,b) a*b

main()
{

int m;
m=2*f(3,g(4,5));
printf("\n m is %d",m);
system("pause");
}

what shud be the o/p of prog and why?

If you can't cope with your homework, talk to your instructor. Most of
us, if not all, won't do it for you...

(Time for Sumedh..... to go in my killfile, I think)

 

[c world]

#define f(a,b) a+b
#define g(a,b) a*b

main()
{

int m;
m=2*f(3,g(4,5));
printf("\n m is %d",m);
system("pause");
}

what shud be the o/p of prog and why?

it seems to be tricky one:
but o/p is 26

 

[Jens Thoms Toerring]

it seems to be tricky one:
but o/p is 26

Not tricky at all. Do the macro expansion by hand (it's not
that complicated) and remember that certain operators have
higher precedence then others (not only in C but also when
you do calculations on a piece of paper...)

Regards, Jens

 

[Richard Bos]

what shud be the o/p of prog and why?

Has it ever occurred to you that there could be a purpose to doing your
own homework? You're not set these problems just to get you off the
teacher's back, you know.

Richard

 

[Richard Heathfield]

Jens Thoms Toerring said:

Not tricky at all.

On my system, the above program outputs "a suffusion of yellow". Perhaps
the OP missed a trick.

<snip>

 

[Chris Dollin]

#define f(a,b) a+b
#define g(a,b) a*b

main()
{

int m;
m=2*f(3,g(4,5));
printf("\n m is %d",m);
system("pause");
}

what shud be the o/p of prog and why?

The output /should/ be "do your own homework, and work out what the
answer implies about what you should do with macro arguments that
are supposed to be expressions". Sadly, the Standard mandates
otherwise.

 

[Christopher Benson-Manica]

(Time for Sumedh..... to go in my killfile, I think)

That's one of the reasons I'm filtering all Google posts at the
moment.

 

[Default User]

Jens Thoms Toerring said:


On my system, the above program outputs "a suffusion of yellow".

Wait, does it output the words "a suffision of yellow" or an actual
suffusion of yellow?



Brian

 

[Richard Heathfield]

Default User said:

Wait, does it output the words "a suffision of yellow" or an actual
suffusion of yellow?

It writes to the standard output device the four-word phrase "a
suffusion of yellow" (not "a suffision of yellow"), sans quotation
marks, and follows it with a newline character.

Cf Douglas Adams, "The Long Dark Teatime of the Soul".

 

[Very.Little.Gravitas.Indeed]

It writes to the standard output device the four-word phrase "a
suffusion of yellow" (not "a suffision of yellow"), sans quotation
marks, and follows it with a newline character.

That usually indicates the result is greater than 4.

So the answer should be 'greater than 4'

Alas in my experience the answer is rarely as important as how you get
there, something about the difference between knowledge and wisdom.

 

[CBFalconer]

Default User said:

It writes to the standard output device the four-word phrase "a
suffusion of yellow" (not "a suffision of yellow"), sans
quotation marks, and follows it with a newline character.

Hey, we're talking about real computers here. I know of no
hardware that is capable of actually outputting a suffusion of
yellow.

 

[Keith Thompson]

Hey, we're talking about real computers here. I know of no
hardware that is capable of actually outputting a suffusion of
yellow.

You've never seen a can of spray paint?

 

[Mark Bluemel]

Jens Thoms Toerring said:


On my system, the above program outputs "a suffusion of yellow". Perhaps
the OP missed a trick.

I wish the compilers I used did that. It's much nicer than their messages.

 

[Richard Tobin]

Hey, we're talking about real computers here. I know of no
hardware that is capable of actually outputting a suffusion of
yellow.

It's called a "printer".

-- Richard

 

[Richard]

Default User said:


It writes to the standard output device the four-word phrase "a
suffusion of yellow" (not "a suffision of yellow"), sans quotation
marks, and follows it with a newline character.

You guys are really clever. Did you know that?

 

[Kelsey Bjarnason]

Hey, we're talking about real computers here. I know of no
hardware that is capable of actually outputting a suffusion of
yellow.

Most inkjets, IME, are incapable of outputting anything _but_ a suffusion
of something - and most do, indeed, have yellow.