Is it possible to run a c program without using main?If yes HOW??

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Is it possible to run a c program without using main?If yes
HOW??

Question Posted / sourisengupta

13 Answers
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Is it possible to run a c program without using main?If yes HOW??..

Answer / elahi

Yes it is possible to run a c program with out main for this
you need to supply astart(assembly procedure CRT) address in
the command line.

Is This Answer Correct ?

41 Yes

7 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / rajiv kumar koiri

#include<stdio.h>
#define decode(s,t,u,m,p,e,d) m##s##u##t
#define begin decode(a,n,i,m,a,t,e)

int begin()
{
printf("Hello");
}

Is This Answer Correct ?

16 Yes

3 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / adesh

#define adesh(x,y) y##x

int adesh(in,ma) (void)
{
;
}

Is This Answer Correct ?

13 Yes

3 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / vrushali

Hi Valli,

I tried the solution provided by you. It doesnot work.

Please chk the compliation procedure.
gcc -g -nostartfiles main.c

I am getting the following:
/usr/bin/ld: warning: cannot find entry symbol _start;
defaulting to 080481a4

Is This Answer Correct ?

9 Yes

1 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / valli

just compile as
cc -nostartfiles main.c

Is This Answer Correct ?

6 Yes

2 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / sourisengupta

Thanx elahi....

Is This Answer Correct ?

8 Yes

5 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / ramabrahmam

hi adesh,
your logic is not suited to numbers.
suppose, if we write "printf" as
for two integers a,b
printf("sum of a and b is",a+b);
for this statement it only displaying the letters
within the double quotes.i.e., sum of a and b is .
it is not displaying anything after that.

Is This Answer Correct ?

1 Yes

0 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / bhavin

hi friends plz help me i want detail how can it
possible...??plz friend,,,also to adesh,valli,elahi...all

Is This Answer Correct ?

3 Yes

3 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / vrushali

HI Valli,

Still the same problem.

/usr/bin/ld: warning: cannot find entry symbol _start;
defaulting to 080481a4

Is This Answer Correct ?

2 Yes

4 No

Is it possible to run a c program without using main?If yes HOW??..

Answer / ankith.v

It is not possible

Is This Answer Correct ?

3 Yes

6 No

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