C++ (Cpp) decDoubleFromWider Beispiele

Beispiel #1

Datei: decimal64.c Projekt: vitesse-ftian/pgdecimal

Datum decimal128_decimal64(PG_FUNCTION_ARGS)
{
        PGDecimal128* pa = PG_GETARG_P_DECIMAL128(0);
        PGDecimal64 ret;
        DECLARE_DEC_CTXT(DEC_INIT_DECIMAL64);

        decDoubleFromWider(&ret, pa, &dc); 
        DEC_CHK_STATUS(dc, DEC_STATUS_OFUF, "decimal128 to decimal64 over/under flow");
        PG_RETURN_DECIMAL64(ret);
}

Beispiel #2

Datei: dfp-bit.c Projekt: applesnake/cocotron-tools-gpl3

/* Use decNumber to convert directly from _Decimal128 to _Decimal64.  */
_Decimal64
DFP_TO_DFP (_Decimal128 f_from)
{
  union { _Decimal64 c; decDouble f; } to;
  union { _Decimal128 c; decQuad f; } from;
  decContext context;

  decContextDefault (&context, CONTEXT_INIT);
  DFP_INIT_ROUNDMODE (context.round);
  from.c = f_from;
  to.f = *decDoubleFromWider (&to.f, &from.f, &context);
  if (DFP_EXCEPTIONS_ENABLED && context.status != 0)
    dfp_conversion_exceptions (context.status);
  return to.c;
}