0

プロジェクトを引き継ぎ、列挙型を使用してAPI呼び出しにフラグを付けます。

以前の開発者がビットシフトを行ったように、列挙値をOR演算することでそれらをフィルタリングできます。

typedef enum {
APICallTimeSeriesSearchTimeSeries   = (1LL << 1),
APICallTimeSeriesGetTimeSeriesInfo  = (1LL << 2),
APICallTimeSeriesGetSeriesInfo      = (1LL << 3),
....
APICallFavouritesAddNewsFavourite               = (1LL << 79),
APICallFavouritesRemoveNewsFavourite            = (1LL << 80),
APICallFavouritesGetAllFavourites               = (1LL << 81)
} APICallType;

その後、私たちは次のようなことをすることができます

filter(APICallTimeSeriesGetTimeSeriesInfo | APICallTimeSeriesGetSeriesInfo | APICallTimeSeriesGetSeriesData);

しかし最近、同じ値にマップされた同様の列挙型に気付きました。私はそのように列挙型リスト全体をダンプしました

NSLog(@"%d",APICallTimeSeriesSearchTimeSeries);
NSLog(@"%d",APICallTimeSeriesGetTimeSeriesInfo);
NSLog(@"%d",APICallTimeSeriesGetSeriesInfo);
NSLog(@"%d",APICallTimeSeriesGetSeriesData);
NSLog(@"%d",APICallFleetSearchVessels);
NSLog(@"%d",APICallFleetGetVesselInfo);
etc.

そして、ビットシフトの動作を見ることができます

2
4
8
16
32
64
128
256
512
1024
2048
4096
8192
16384
32768
65536
131072
262144
524288
1048576
2097152
4194304
8388608
16777216
33554432
67108864
134217728
268435456
536870912
1073741824
2147483648
4294967296
8589934592
17179869184
34359738368
68719476736

問題は、（1LL << 63）同じ値が生成された後です

1152921504606846976 APICallFavouritesAddMarketFavourite = (1LL << 60)
2305843009213693952 APICallFavouritesRemoveMarketFavourite  = (1LL << 61)
4611686018427387904 APICallFavouritesGetFutureFavourites    = (1LL << 62)
-9223372036854775808    APICallFavouritesAddFutureFavourite = (1LL << 63)
-9223372036854775808    APICallFavouritesRemoveFutureFavourite  = (1LL << 64)
-9223372036854775808    APICallFavouritesRemoveVesselFavourite  = (1LL << 65)

etc同じ値（-9223372036854775808）がすべての新しい列挙型に対して繰り返されます

このスレッドから iPhoneのobjective-cに入力

-9223372036854775808はLLONG_MINだからです

NSLog(@"LLONG_MIN:  %lli", LLONG_MIN);   // signed long long int

より高い価値があることに気づきました

NSLog(@"LLONG_MAX:  %lli", LLONG_MAX);
NSLog(@"ULLONG_MAX: %llu", ULLONG_MAX);  // unsigned long long int

LLONG_MIN:  -9223372036854775808         
LLONG_MAX:  9223372036854775807          
ULLONG_MAX: 18446744073709551615

しかし、ULLONG_MINが見つかりません

これをどのように修正しますか？

プリミティブストレージを1LLから1ULLに変更しようとしましたが、効果がありませんでした。

から：

typedef enum {
APICallTimeSeriesSearchTimeSeries   = (1LL << 1),
APICallTimeSeriesGetTimeSeriesInfo  = (1LL << 2),
APICallTimeSeriesGetSeriesInfo      = (1LL << 3),
...

に：

typedef enum {
APICallTimeSeriesSearchTimeSeries               = (1ULL << 1),
APICallTimeSeriesGetTimeSeriesInfo              = (1ULL << 2),
APICallTimeSeriesGetSeriesInfo                  = (1ULL << 3),
...

乾杯

4

2 に答える 2

1

ULLONG_MINは0です。ULLONGは、 unsigned long longを意味します。つまり、64ビットで表される正の値です。

正の数と負の数が必要な場合は、同じビット幅の符号なしタイプで表すことができる値のセットの半分しか表すことができません。これがULLONG_MAXが大きい理由です。

于 2012-11-20T22:31:42.493 に答える
0

APICallTypeを別の列挙型に分割することを選択しました。それは、3年前のプロジェクトを再配線し、すべてのAPI呼び出しをテストする必要があるということでした。

APICallTimeSeriesSearchTimeSeries   = (1LL << 1),
APICallTimeSeriesGetTimeSeriesInfo  = (1LL << 2),
APICallTimeSeriesGetSeriesInfo      = (1LL << 3),
....
APICallFavouritesAddNewsFavourite               = (1LL << 79),
APICallFavouritesRemoveNewsFavourite            = (1LL << 80),
APICallFavouritesGetAllFavourites               = (1LL << 81)
} APICallType;

に変更

typedef enum {
APICallTimeSeriesSearchTimeSeries   = (1LL << 1),
APICallTimeSeriesGetTimeSeriesInfo  = (1LL << 2),
APICallTimeSeriesGetSeriesInfo      = (1LL << 3),
APICallTimeSeriesGetSeriesData      = (1LL << 4),
APICallFleetSearchVessels           = (1LL << 5),
APICallFleetGetVesselInfo           = (1LL << 6),
APICallNewsGetNewsItems             = (1LL << 7),
APICallNewsGetPublicationItems      = (1LL << 8),
APICallPodcastGetPodcastItems       = (1LL << 9),
APICallUserLoginAuthenticateUser    = (1LL << 10),
APICallFFASearchFFARoutes           = (1LL << 11),
APICallFFAGetRouteData              = (1LL << 12),
APICallOwnerSearchOwners            = (1LL << 13),
APICallOwnerGetOwnerFleet           = (1LL << 14),
APICallIndicesSearchIndices         = (1LL << 15),
APICallIndicesGetIndicesData        = (1LL << 16),
APICallEquitiesGetEquitiesData      = (1LL << 17),
APICallEquitiesGetEquityPreviews    = (1LL << 18),
APICallEquitiesSearchBrokingStocks  = (1LL << 19),
APICallEquitiesSearchIndices        = (1LL << 20),
APICallEquitiesSearchCurrencies     = (1LL << 21),
APICallEquitiesGetRelatedNewsItems  = (1LL << 22),
APICallEquitiesGetCurrencyList      = (1LL << 23),
APICallSandPVesselsSearch           = (1LL << 24),
APICallSandPVesselSalesSearch       = (1LL << 25),
APICallSandPGetCommercialData       = (1LL << 26),
APICallSandPGetSimilarSales         = (1LL << 27),
APICallSandPGetFullVesselDetails    = (1LL << 28),
APICallSandPEnquiriesSearch         = (1LL << 29),
APICallTimeSeriesGetCategories                  = (1LL << 30),
APICallTimeSeriesGetShipTypes                   = (1LL << 31),
APICallTimeSeriesGetDataTypes                   = (1LL << 32),
APICallTimeSeriesSearchTimeSeriesWithCategories = (1LL << 33),
APICallHomeGetComments                          = (1LL << 34),
APICallEquitiesGetRelatedNewsItemsWithIds       = (1LL << 35),
APICallEquitiesSearchEquitiesBrokingStocks      = (1LL << 36),
APICallTimeSeriesGetFutureShipTypes             = (1LL << 37),
APICallTimeSeriesGetFutureDataTypes             = (1LL << 38),
APICallTimeSeriesGetOHLCData                    = (1LL << 39),
APICallTimeSeriesGetSeriesDataMaxPoints         = (1LL << 40),
APICallTimeSeriesGetSeriesOHLCDataMaxPoints     = (1LL << 41),
APICallClientSearchClients                      = (1LL << 42),
APICallClientGetClientListForBroker             = (1LL << 43),
APICallClientSearchDivisionsAndDesks            = (1LL << 44),
APICallClientGetDivisionsAndDesks               = (1LL << 45),
APICallClientSaveEmployeeDetails                = (1LL << 46),
APICallTimeSeriesSearchWithSeriesId             = (1LL << 47),
APICallHomeGetCommentsCargo                     = (1LL << 48),
APICallHomeGetCommentsSandP                     = (1LL << 49),
APICallHomeGetCommentsTanker                    = (1LL << 50),
APICallClientGetSandPRoutes                     = (1LL << 51),
APICallClientGetSandP2ndHandValues              = (1LL << 52),
APICallHomeGetCommentsSpecialised               = (1LL << 53),
APICallClientGetSpecialised                     = (1LL << 54),
APICallClientGetGas                             = (1LL << 55),
APICallClientGetGasBunkerPrices                 = (1LL << 56),
APICallFFAGetAllWhiteboardSpreadTypes           = (1LL << 57),
APICallFFAGetWhiteboardSpreadPricesForType      = (1LL << 58),
APICallFavourites                               = (1LL << 59)
/*
APICallFavouritesGetMarketFavourites            = (1LL << 59),
APICallFavouritesAddMarketFavourite             = (1LL << 60),
APICallFavouritesRemoveMarketFavourite          = (1LL << 61),
APICallFavouritesGetFutureFavourites            = (1LL << 62),

//Enum bit shifted greater than 63 will have same value as MAX INT reached
//moved these to 
APICallFavouritesAddFutureFavourite             = (1LL << 63),
APICallFavouritesRemoveFutureFavourite          = (1LL << 64),
APICallFavouritesGetVesselOwnerFavourites       = (1LL << 65),
APICallFavouritesGetVesselFavourites            = (1LL << 66),
APICallFavouritesAddVesselFavourite             = (1LL << 67),
APICallFavouritesRemoveVesselFavourite          = (1LL << 68),
APICallFavouritesGetOwnerFavourites             = (1LL << 69),
APICallFavouritesAddOwnerFavourite              = (1LL << 70),
APICallFavouritesRemoveOwnerFavourite           = (1LL << 71),
APICallFavouritesGetShippingStockFavourites     = (1LL << 72),
APICallFavouritesAddShippingStockFavourite      = (1LL << 73),
APICallFavouritesRemoveShippingStockFavourite   = (1LL << 74),
APICallFavouritesGetIndicieFavourites           = (1LL << 75),
APICallFavouritesAddIndicieFavourite            = (1LL << 76),
APICallFavouritesRemoveIndicieFavourite         = (1LL << 77),
APICallFavouritesGetNewsFavourites              = (1LL << 78),
APICallFavouritesAddNewsFavourite               = (1LL << 79),
APICallFavouritesRemoveNewsFavourite            = (1LL << 80),
APICallFavouritesGetAllFavourites               = (1LL << 81)
*/

} APICallType;

および追加されたAPICallSubType

typedef enum {

/* for use with APICallType:APICallFavourites */
APICallFavouritesGetMarketFavourites            = (1LL << 1),
APICallFavouritesAddMarketFavourite             = (1LL << 2),
APICallFavouritesRemoveMarketFavourite          = (1LL << 3),

APICallFavouritesGetFutureFavourites            = (1LL << 4),
APICallFavouritesAddFutureFavourite             = (1LL << 5),
APICallFavouritesRemoveFutureFavourite          = (1LL << 6),

APICallFavouritesGetVesselOwnerFavourites       = (1LL << 7),
APICallFavouritesGetVesselFavourites            = (1LL << 8),
APICallFavouritesAddVesselFavourite             = (1LL << 9),
APICallFavouritesRemoveVesselFavourite          = (1LL << 10),

APICallFavouritesGetOwnerFavourites             = (1LL << 11),
APICallFavouritesAddOwnerFavourite              = (1LL << 12),
APICallFavouritesRemoveOwnerFavourite           = (1LL << 13),

APICallFavouritesGetShippingStockFavourites     = (1LL << 14),
APICallFavouritesAddShippingStockFavourite      = (1LL << 15),
APICallFavouritesRemoveShippingStockFavourite   = (1LL << 16),

APICallFavouritesGetIndicieFavourites           = (1LL << 17),
APICallFavouritesAddIndicieFavourite            = (1LL << 18),
APICallFavouritesRemoveIndicieFavourite         = (1LL << 19),

APICallFavouritesGetNewsFavourites              = (1LL << 20),
APICallFavouritesAddNewsFavourite               = (1LL << 21),
APICallFavouritesRemoveNewsFavourite            = (1LL << 22),
APICallFavouritesGetAllFavourites               = (1LL << 23)
//do not go over (1LL << 63) - enum values start at MAX INT after that

} APICallSubType;

そして、どこでもタイプをチェックした後、サブタイプをチェックする必要がありました

filter(APICallFavourites);
filterSubType(APICallFavouritesAddVesselFavourite |
              APICallFavouritesRemoveVesselFavourite);

if (responseOfSubType(APICallFavouritesAddVesselFavourite))
{
    NSLog(@"%s APICallFavouritesAddVesselFavourite response not handled", __PRETTY_FUNCTION__);
}

if (responseOfSubType(APICallFavouritesRemoveVesselFavourite))
{
    NSLog(@"%s APICallFavouritesRemoveVesselFavourite response not handled", __PRETTY_FUNCTION__);
}
于 2012-11-21T09:52:06.303 に答える