/usr/include/root/TGenericTable.h is in libroot-misc-table-dev 5.34.14-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Author: Valery Fine(fine@bnl.gov) 30/06/2001
#ifndef ROOT_TGenericTable
#define ROOT_TGenericTable
#include "TTable.h"
//////////////////////////////////////////////////////////////////////////
// //
// TGenericTable //
// //
// This is the class to represent the array of C-struct //
// defined at run-time //
// //
//////////////////////////////////////////////////////////////////////////
class TGenericTable : public TTable {
protected:
TTableDescriptor *fColDescriptors;
virtual TTableDescriptor *GetDescriptorPointer() const { return fColDescriptors;}
virtual void SetDescriptorPointer(TTableDescriptor *list) { fColDescriptors = list;}
void SetGenericType(){ TTable::SetType(GetDescriptorPointer()->GetName()); }
public:
class iterator {
protected:
UInt_t fRowSize;
char *fCurrentRow;
iterator(): fRowSize(0), fCurrentRow(0) {}
public:
iterator(UInt_t size, char &rowPtr): fRowSize(size), fCurrentRow(&rowPtr){}
iterator(const TTable &t, char &rowPtr): fRowSize(t.GetRowSize()), fCurrentRow(&rowPtr){}
iterator(const TTable &t): fRowSize(t.GetRowSize()), fCurrentRow(0){}
iterator(const iterator& iter) : fRowSize (iter.fRowSize), fCurrentRow(iter.fCurrentRow){}
iterator &operator=(const iterator& iter) { fRowSize = iter.fRowSize; fCurrentRow = iter.fCurrentRow; return *this;}
iterator &operator++() { if (fCurrentRow) fCurrentRow+=fRowSize; return *this;}
void operator++(int) { if (fCurrentRow) fCurrentRow+=fRowSize;}
iterator &operator--() { if (fCurrentRow) fCurrentRow-=fRowSize; return *this;}
void operator--(int) { if (fCurrentRow) fCurrentRow-=fRowSize;}
iterator &operator+(Int_t idx) { if (fCurrentRow) fCurrentRow+=idx*fRowSize; return *this;}
iterator &operator-(Int_t idx) { if (fCurrentRow) fCurrentRow-=idx*fRowSize; return *this;}
Int_t operator-(const iterator &it) const { return (fCurrentRow-it.fCurrentRow)/fRowSize; }
char *operator *(){ return fCurrentRow;}
Bool_t operator==(const iterator &t) const { return (fCurrentRow == t.fCurrentRow); }
Bool_t operator!=(const iterator &t) const { return !operator==(t); }
};
TGenericTable() : TTable("TGenericTable",-1), fColDescriptors(0) {SetType("generic");}
// Create TGenericTable by C structure name provided
TGenericTable(const char *structName, const char *name);
TGenericTable(const char *structName, Int_t n);
TGenericTable(const char *structName, const char *name,Int_t n);
// Create TGenericTable by TTableDescriptor pointer
TGenericTable(const TTableDescriptor &dsc, const char *name);
TGenericTable(const TTableDescriptor &dsc, Int_t n);
TGenericTable(const TTableDescriptor &dsc,const char *name,Int_t n);
virtual ~TGenericTable();
char *GetTable(Int_t i=0) const { return ((char *)GetArray())+i*GetRowSize();}
TTableDescriptor *GetTableDescriptors() const { return GetDescriptorPointer();}
TTableDescriptor *GetRowDescriptors() const { return GetDescriptorPointer();}
char &operator[](Int_t i){ assert(i>=0 && i < GetNRows()); return *GetTable(i); }
const char &operator[](Int_t i) const { assert(i>=0 && i < GetNRows()); return *((const char *)(GetTable(i))); }
iterator begin() { return ((const TGenericTable *)this)->begin();}
iterator begin() const { return GetNRows() ? iterator(*this, *GetTable(0)):end();}
iterator end() { return ((const TGenericTable *)this)->end(); }
iterator end() const {Long_t i = GetNRows(); return i? iterator(*this, *GetTable(i)):iterator(*this);}
ClassDef(TGenericTable,4) // Generic array of C-structure (a'la STL vector)
};
#endif
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