int main() {
bignum l1 = from_str("99"),
l2 = from_str("10");
printf("%s\n", to_str(from_int(666)));
printf("%d\n", to_int(from_str("666")));
bignum sum = plus(l1, l2);
printf("%s\n", to_str(sum));
bignum diff = minus(l1, l2);
printf("%s\n", to_str(diff));
printf("%i\n", lesser(l1, l2));
bignum muli = mul_int(l1, 2);
printf("%s\n", to_str(muli));
printf("%d\n", mod_int(l1, 10));
bignum divi = div_int(l1, 10);
printf("%s\n", to_str(divi));
bignum mul = multiply(l1, l2);
printf("%s\n", to_str(mul));
bignum div = divide(l1, l2);
printf("%s\n", to_str(div));
bignum mod = modulo(l1, l2);
printf("%s\n", to_str(mod));
return 0;
}
bignum multiply (bignum x, bignum y) {
bignum z, zero;
int len = x.len + y.len;
zero.len = 1;
zero.num = calloc(len, sizeof(int));
zero.num[0] = 0;
z.len = 1;
z.num = calloc(len, sizeof(int));
z.num[0] = 0;
while (greater(y, zero)) {
if (mod_int(y, 2) == 1)
z = plus(z, x);
x = mul_int(x, 2);
y = div_int(y, 2);
}
free(zero.num);
if (z.len == len)
return z;
else {
bignum m;
m.len = z.len;
m.num = calloc(m.len, sizeof(int));
memcpy(m.num, z.num, m.len * sizeof(int));
free(z.num);
return m;
}
}
void wrapCurrentVoxID(int& gridSize)
{
if(bMainDirection.x)
{
voxID = glm::ivec3(voxID.x,
mod_int(voxID.y,gridSize),
mod_int(voxID.z,gridSize));
}
else if(bMainDirection.y)
{
voxID = glm::ivec3(mod_int(voxID.x,gridSize),
voxID.y,
mod_int(voxID.z,gridSize));
}
else
{
voxID = glm::ivec3(mod_int(voxID.x,gridSize),
mod_int(voxID.y,gridSize),
voxID.z);
}
}
