Function decCheckMath

extern/decNumber/decNumber.c:7512–7523

------------------------------------------------------------------ */ decCheckMath - check entry conditions for a math function */ / This checks the context and the operand */ / rhs is the operand to check */ set is the context to check */ status is unchanged if both are good

/*   restriction is violated.                                         */
/* ------------------------------------------------------------------ */
static uInt decCheckMath(const decNumber *rhs, decContext *set,
                         uInt *status) {
  uInt save=*status;                         // record
  if (set->digits>DEC_MAX_MATH
   || set->emax>DEC_MAX_MATH
   || -set->emin>DEC_MAX_MATH) *status|=DEC_Invalid_context;
   else if ((rhs->digits>DEC_MAX_MATH
     || rhs->exponent+rhs->digits>DEC_MAX_MATH+1
     || rhs->exponent+rhs->digits<2*(1-DEC_MAX_MATH))
     && !ISZERO(rhs)) *status|=DEC_Invalid_operation;
  return (*status!=save);
  } // decCheckMath

/* ------------------------------------------------------------------ */
/* decGetInt -- get integer from a number                             */