1 // @(#)root/meta:$Id$
2 // Author: Rene Brun 04/02/95
3
4 /*************************************************************************
5 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
11
12 #ifndef ROOT_TDataType
13 #define ROOT_TDataType
14
15
16 //////////////////////////////////////////////////////////////////////////
17 // //
18 // TDataType //
19 // //
20 // Basic data type descriptor (datatype information is obtained from //
21 // CINT). //
22 // //
23 //////////////////////////////////////////////////////////////////////////
24
25 #ifndef ROOT_TDictionary
26 #include "TDictionary.h"
27 #endif
28
29
30 enum EDataType {
31 kChar_t = 1, kUChar_t = 11, kShort_t = 2, kUShort_t = 12,
32 kInt_t = 3, kUInt_t = 13, kLong_t = 4, kULong_t = 14,
33 kFloat_t = 5, kDouble_t = 8, kDouble32_t = 9, kchar = 10,
34 kBool_t = 18, kLong64_t = 16, kULong64_t = 17, kOther_t = -1,
35 kNoType_t = 0, kFloat16_t= 19,
36 kCounter = 6, kCharStar = 7, kBits = 15 /* for compatibility with TStreamerInfo */,
37 kVoid_t = 20,
38
39 kDataTypeAliasUnsigned_t = 21,
40 // could add "long int" etc
41 kNumDataTypes
42 };
43
44
45 class TDataType : public TDictionary {
46
47 private:
48 TypedefInfo_t *fInfo; //pointer to CINT typedef info
49 Int_t fSize; //size of type
50 EDataType fType; //type id
51 Long_t fProperty; //The property information for the (potential) underlying class
52 TString fTrueName; //True name of the (potential) underlying class
53 static TDataType* fgBuiltins[kNumDataTypes]; //Array of builtins
54
55 void CheckInfo();
56 void SetType(const char *name);
57
58 protected:
59 TDataType(const TDataType&);
60 TDataType& operator=(const TDataType&);
61
62 public:
63 TDataType(TypedefInfo_t *info = 0);
64 TDataType(const char *typenam);
65 virtual ~TDataType();
66 Int_t Size() const;
67 Int_t GetType() const { return (Int_t)fType; }
68 const char *GetTypeName() const;
69 const char *GetFullTypeName() const;
70 const char *AsString(void *buf) const;
71 Long_t Property() const;
72
73 static const char *GetTypeName(EDataType type);
74 static TDataType *GetDataType(EDataType type);
75 static EDataType GetType(const type_info &typeinfo);
76 static void AddBuiltins(TCollection* types);
77
78 ClassDef(TDataType,0) //Basic data type descriptor
79 };
80
81 #endif
82
83