-(p1)
public
Subtracts other from big, returning the result.
Show source
VALUE
rb_big_minus(VALUE x, VALUE y)
{
long n;
if (FIXNUM_P(y)) {
n = FIX2LONG(y);
if ((n > 0) != BIGNUM_SIGN(x)) {
if (n < 0) {
n = -n;
}
return bigadd_int(x, n);
}
if (n < 0) {
n = -n;
}
return bigsub_int(x, n);
}
else if (RB_BIGNUM_TYPE_P(y)) {
return bignorm(bigadd(x, y, 0));
}
else if (RB_FLOAT_TYPE_P(y)) {
return DBL2NUM(rb_big2dbl(x) - RFLOAT_VALUE(y));
}
else {
return rb_num_coerce_bin(x, y, '-');
}
}
RSpec
Ruby on Rails
Ruby
= private
= protected
