Function decFloatSubtract

extern/decNumber/decBasic.c:3457–3466

------------------------------------------------------------------ */ decFloatSubtract -- subtract a decFloat from another */ / result gets the result of subtracting dfr from dfl: */ dfl is the first decFloat (lhs) */ dfr is the second decFloat (rhs) */ set is the context

/*                                                                    */
/* ------------------------------------------------------------------ */
decFloat * decFloatSubtract(decFloat *result,
                            const decFloat *dfl, const decFloat *dfr,
                            decContext *set) {
  decFloat temp;
  // NaNs must propagate without sign change
  if (DFISNAN(dfr)) return decFloatAdd(result, dfl, dfr, set);
  temp=*dfr;                                   // make a copy
  DFBYTE(&temp, 0)^=0x80;                      // flip sign
  return decFloatAdd(result, dfl, &temp, set); // and add to the lhs
  } // decFloatSubtract

/* ------------------------------------------------------------------ */
/* decFloatToInt -- round to 32-bit binary integer (4 flavours)       */