truncate()
Returns the float truncated to an Integer.
Synonyms are #to_i, #to_int, and #truncate.
static VALUE flo_truncate(VALUE num) { double f = RFLOAT_VALUE(num); long val; if (f > 0.0) f = floor(f); if (f < 0.0) f = ceil(f); if (!FIXABLE(f)) { return rb_dbl2big(f); } val = (long)f; return LONG2FIX(val); }