GMP and a quick addition example

[Paul Leyland]

This works for me.  Compile with

gcc -o add_example add_example.c -lgmp -lm


#include <stdio.h>			/* for printf */
#include <gmp.h>
 
int main(int argc, char *argv[])
{
  mpz_t a, b;                 		/* working numbers */
  if (argc<3)
    {					/* not enough words */
    printf("Please supply two numbers to add.\n");
    return 1;
  }
  mpz_init_set_str (a, argv[1], 10);	/* Assume decimal integers */
  mpz_init_set_str (b, argv[2], 10);	/* Assume decimal integers */
  mpz_add (a, a, b);			/* a=a+b */

  printf("%s + %s => %s\n", argv[1], argv[2], mpz_get_str (NULL, 10, a));
  return 0;
}


YMMV.

Paul



On Mon, 2008-03-10 at 10:39, Daniel White wrote:
> Hello,
> 
> I am interseted in using your arbitrary precision library.
> 
> Just wondering - do you have a 'smallest possible program'
> example to say, add up two numbers like this page shows:
> 
> http://www2.hursley.ibm.com/decimal/dnusers.html#example1
> 
> Such examples are often good for people like me who are
> eager to learn quickly.
> 
> Cheers, Daniel
> _______________________________________________
> gmp-discuss mailing list
> gmp-discuss at swox.com
> https://gmplib.org/mailman/listinfo/gmp-discuss
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