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TMemStatHelpers.h
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1 // @(#)root/memstat:$Id$
2 // Author: Anar Manafov (A.Manafov@gsi.de) 2008-03-02
3 
4 /*************************************************************************
5 * Copyright (C) 1995-2010, 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 #ifndef ROOT_TMemStatHelpers
12 #define ROOT_TMemStatHelpers
13 
14 // ROOT
15 #include "TString.h"
16 #include "TObjString.h"
17 #include "TCollection.h"
18 // STD
19 #include <string>
20 #include <functional>
21 #include <algorithm>
22 #include <cctype>
23 
24 
25 class TObject;
26 
27 namespace Memstat {
28  std::string dig2bytes(Long64_t bytes);
29 
30 //______________________________________________________________________________
31  struct SFind_t : std::binary_function<TObject*, TString, bool> {
32  bool operator()(TObject *_Obj, const TString &_ToFind) const {
33  TObjString *str(dynamic_cast<TObjString*>(_Obj));
34  if(!str)
35  return false;
36  return !str->String().CompareTo(_ToFind);
37  }
38  };
39 
40 //______________________________________________________________________________
41  template<class T>
42  Int_t find_string(const T &_Container, const TString &_ToFind)
43  {
44  // This function retuns an index in _Container of found element.
45  // Returns -1 if there was no element found.
46 
47  typedef TIterCategory<T> iterator_t;
48 
49  iterator_t iter(&_Container);
50  iterator_t found(
51  std::find_if(iter.Begin(), iterator_t::End(), std::bind(SFind_t(), std::placeholders::_1, _ToFind))
52  );
53  return ((!(*found)) ? -1 : std::distance(iter.Begin(), found));
54  }
55 
56 //______________________________________________________________________________
57 // HACK: because of the bug in gcc 3.3 we need to use this nasty ToLower and ToUpper instead of direct calls of tolower (tolower.. is inline in this version of std lib)...
58  struct ToLower_t {
59  char operator()(char c) const {
60  return std::tolower(c);
61  }
62  };
63 
64 }
65 #endif
long long Long64_t
Definition: RtypesCore.h:69
Collectable string class.
Definition: TObjString.h:28
double T(double x)
Definition: ChebyshevPol.h:34
Basic string class.
Definition: TString.h:131
std::string dig2bytes(Long64_t bytes)
This function creates a string representation of the number of bytes, represented as a number in B...
Int_t find_string(const T &_Container, const TString &_ToFind)
TString & String()
Definition: TObjString.h:48
int CompareTo(const char *cs, ECaseCompare cmp=kExact) const
Compare a string to char *cs2.
Definition: TString.cxx:418
char operator()(char c) const
Mother of all ROOT objects.
Definition: TObject.h:37
void End()
#define c(i)
Definition: RSha256.hxx:101
bool operator()(TObject *_Obj, const TString &_ToFind) const