char ......................................... Builtin basic type unsigned char ................................ Builtin basic type short ........................................ Builtin basic type unsigned short ............................... Builtin basic type int .......................................... Builtin basic type unsigned int ................................. Builtin basic type long ......................................... Builtin basic type unsigned long ................................ Builtin basic type long long .................................... Builtin basic type unsigned long long ........................... Builtin basic type float ........................................ Builtin basic type double ....................................... Builtin basic type void ......................................... Builtin basic type bool ......................................... Builtin basic type Int_t ........................................ Signed integer 4 bytes (int) UInt_t ....................................... Unsigned integer 4 bytes (unsigned int) Long_t ....................................... Signed long integer 4 bytes (long) Bool_t ....................................... Boolean (0=false, 1=true) (bool) Version_t .................................... Class version identifier (short) Long64_t ..................................... Portable signed long integer 8 bytes UChar_t ...................................... Unsigned Character 1 byte (unsigned char) ULong_t ...................................... Unsigned long integer 4 bytes (unsigned long) Option_t ..................................... Option string (const char) CheckSecCtx_t ................................ Int_t (*CheckSecCtx_t)(const char *subj, TSecContext *ctx); GlobusAuth_t ................................. Int_t (*GlobusAuth_t)(TAuthenticate *auth, TString &user, TString &det); Krb5Auth_t ................................... Int_t (*Krb5Auth_t)(TAuthenticate *auth, TString &user, TString &det, Int_t version); SecureAuth_t ................................. Int_t (*SecureAuth_t)(TAuthenticate *auth, const char *user, const char *passwd, Short_t ...................................... Signed Short integer 2 bytes (short) Double_t ..................................... Double 8 bytes MemberStreamerFunc_t ......................... Streamer function for a data member VoidFuncPtr_t ................................ pointer to void function ShowMembersFunc_t ............................ void (*ShowMembersFunc_t)(void *obj, TMemberInspector &R__insp, char *R__parent); IsAFunc_t .................................... TClass *(*IsAFunc_t)(const void *obj); IsAGlobalFunc_t .............................. TClass *(*IsAGlobalFunc_t)(const TClass*, const void *obj); ROOT::NewFunc_t .............................. void *(*NewFunc_t)(void *); ROOT::NewArrFunc_t ........................... void *(*NewArrFunc_t)(Long_t size); ROOT::DelFunc_t .............................. void (*DelFunc_t)(void *); ROOT::DelArrFunc_t ........................... void (*DelArrFunc_t)(void *); ROOT::DesFunc_t .............................. void (*DesFunc_t)(void *); Char_t ....................................... Signed Character 1 byte (char) UShort_t ..................................... Unsigned Short integer 2 bytes (unsigned short) Float_t ...................................... Float 4 bytes (float) ULong64_t .................................... Portable unsigned long integer 8 bytes Stat_t ....................................... Statistics type (double) TAssoc ....................................... for backward compatibility Handle_t ..................................... Generic resource handle Display_t .................................... Display handle Visual_t ..................................... Visual handle Window_t ..................................... Window handle Pixmap_t ..................................... Pixmap handle Drawable_t ................................... Drawable handle Region_t ..................................... Region handle Colormap_t ................................... Colormap handle Cursor_t ..................................... Cursor handle FontH_t ...................................... Font handle (as opposed to Font_t which is an index) KeySym_t ..................................... Key symbol handle Atom_t ....................................... WM token GContext_t ................................... Graphics context handle FontStruct_t ................................. Pointer to font structure Mask_t ....................................... Structure mask type Time_t ....................................... Event time Ssiz_t ....................................... String size (int) FreeHookFun_t ................................ void (*FreeHookFun_t)(void*, void *addr, size_t); ReAllocFun_t ................................. void *(*ReAllocFun_t)(void*, size_t); ReAllocCFun_t ................................ void *(*ReAllocCFun_t)(void*, size_t, size_t); SCoord_t ..................................... Screen coordinates (short) Double32_t ................................... Double 8 bytes in memory, written as a Float 4 bytes Font_t ....................................... Font number (short) Style_t ...................................... Style number (short) Width_t ...................................... Line width (short) Color_t ...................................... Color number (short) Size_t ....................................... Attribute size (float) Axis_t ....................................... Axis values type (double) Text_t ....................................... General string (char) Marker_t ..................................... Marker number (short) Pixel_t ...................................... Pixel value ios_base::event_callback ..................... void (*event_callback) (event, ios_base&, int index); ROOT::TBranchProxyClassDescriptor::EInClones . for IsClones TPainter3dAlgorithms::DrawFaceFunc_t ......... void (TPainter3dAlgorithms::*DrawFaceFunc_t)(Int_t *, Double_t *, Int_t, Int_t *, Double_t *); TPainter3dAlgorithms::LegoFunc_t ............. void (TPainter3dAlgorithms::*LegoFunc_t)(Int_t,Int_t,Int_t&,Double_t*,Double_t*,Double_t*); TPainter3dAlgorithms::SurfaceFunc_t .......... void (TPainter3dAlgorithms::*SurfaceFunc_t)(Int_t,Int_t,Double_t*,Double_t*); TThread::VoidRtnFunc_t ....................... void *(*VoidRtnFunc_t)(void *); TThread::VoidFunc_t .......................... void (*VoidFunc_t)(void *); COMPAREMETHOD ................................ Int_t (*COMPAREMETHOD)(const void **, const void **); SEARCHMETHOD ................................. Int_t (*SEARCHMETHOD) (const void *, const void **);