tests2/22_floating_point.c

   1 #include <stdio.h>
   2 #include <math.h>
   3
   4 int main()
   5 {
   6    // variables
   7    float a = 12.34 + 56.78;
   8    printf("%f\n", a);
   9
  10    // infix operators
  11    printf("%f\n", 12.34 + 56.78);
  12    printf("%f\n", 12.34 - 56.78);
  13    printf("%f\n", 12.34 * 56.78);
  14    printf("%f\n", 12.34 / 56.78);
  15
  16    // comparison operators
  17    printf("%d %d %d %d %d %d\n", 12.34 < 56.78, 12.34 <= 56.78, 12.34 == 56.78, 12.34 >= 56.78, 12.34 > 56.78, 12.34 != 56.78);
  18    printf("%d %d %d %d %d %d\n", 12.34 < 12.34, 12.34 <= 12.34, 12.34 == 12.34, 12.34 >= 12.34, 12.34 > 12.34, 12.34 != 12.34);
  19    printf("%d %d %d %d %d %d\n", 56.78 < 12.34, 56.78 <= 12.34, 56.78 == 12.34, 56.78 >= 12.34, 56.78 > 12.34, 56.78 != 12.34);
  20
  21    // assignment operators
  22    a = 12.34;
  23    a += 56.78;
  24    printf("%f\n", a);
  25
  26    a = 12.34;
  27    a -= 56.78;
  28    printf("%f\n", a);
  29
  30    a = 12.34;
  31    a *= 56.78;
  32    printf("%f\n", a);
  33
  34    a = 12.34;
  35    a /= 56.78;
  36    printf("%f\n", a);
  37
  38    // prefix operators
  39    printf("%f\n", +12.34);
  40    printf("%f\n", -12.34);
  41
  42    // type coercion
  43    a = 2;
  44    printf("%f\n", a);
  45    printf("%f\n", sin(2));
  46
  47    return 0;
  48 }
  49
  50 /* vim: set expandtab ts=4 sw=3 sts=3 tw=80 :*/