forked from github/server
37 lines
616 B
C
37 lines
616 B
C
|
#include "variant.h"
|
||
|
|
#include <limits.h>
|
||
|
|
|
||
|
|
static int lcd(int a, int b) {
|
||
|
|
return a * b;
|
||
|
|
}
|
||
|
|
|
||
|
|
variant frac_add(variant a, variant b)
|
||
|
|
{
|
||
|
|
int num, den;
|
||
|
|
variant v;
|
||
|
|
den = lcd(a.sa[1], b.sa[1]);
|
||
|
|
num = a.sa[0] * lcd / a.sa[1] + b.sa[0] * lcd / b.sa[1];
|
||
|
|
assert(num >= SHRT_MIN && num <= SHRT_MAX);
|
||
|
|
assert(den >= SHRT_MIN && den <= SHRT_MAX);
|
||
|
|
v.sa[0] = (short)num;
|
||
|
|
v.sa[1] = (short)den;
|
||
|
|
return v;
|
||
|
|
}
|
||
|
|
|
||
|
|
variant frac_mul(variant a, variant b)
|
||
|
|
{
|
||
|
|
variant v = a;
|
||
|
|
return v;
|
||
|
|
}
|
||
|
|
|
||
|
|
variant frac_div(variant a, variant b)
|
||
|
|
{
|
||
|
|
variant v = a;
|
||
|
|
return v;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif
|