mdw@git.distorted.org.uk Git - sod/blob - test/rat.sod

   1 /* -*-sod-*- */
   2
   3 code c: includes {
   4 #include <assert.h>
   5 #include <stdio.h>
   6
   7 #include "rat.h"
   8 }
   9
  10 code h: includes {
  11 #include "sod.h"
  12 }
  13
  14 typename FILE;
  15
  16 code c: early_user {
  17   static int gcd(int x, int y)
  18   {
  19     int t;
  20     if (x < 0) x = -x;
  21     if (y < 0) y = -y;
  22     while (y) { t = x%y; x = y; y = t; }
  23     return (x);
  24   }
  25 }
  26
  27 [nick = rat, link = SodObject]
  28 class Rational: SodObject {
  29   int num, den;
  30   initarg int num = 0, den = 1;
  31   init {
  32     int g;
  33     assert(den);
  34     g = gcd(num, den);
  35     me->rat.num = num/g;
  36     me->rat.den = den/g;
  37   }
  38
  39   void print(FILE *fp) { fprintf(fp, "%d/%d\n", me->rat.num, me->rat.den); }
  40 }
  41
  42 code c: user {
  43   int main(void)
  44   {
  45     SOD_DECL(Rational, r0, KWARGS(K(den, 9)));
  46     SOD_DECL(Rational, r1, KWARGS(K(num, 6)));
  47     SOD_DECL(Rational, r2, KWARGS(K(num, 6) K(den, 9)));
  48     Rational_print(r0, stdout);
  49     Rational_print(r1, stdout);
  50     Rational_print(r2, stdout);
  51     return (0);
  52   }
  53 }