All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros
histogram.cc
Go to the documentation of this file.
1 /* histogram.cc
2  */
3 #include "osl/stat/histogram.h"
4 #include <iostream>
5 #include <iomanip>
6 
8 Histogram::Histogram(size_t w, size_t len, int s, bool sd)
9  : data(new double[len]), length_(len), width_(w), start_(s),
10  show_on_destruct(sd)
11 {
12  std::fill(&data[0], &data[0]+length_, 0);
13 }
16 {
17  if (show_on_destruct)
18  show(std::cerr);
19 }
20 void osl::stat::
22 {
23  if ((width_ == o.width_)
24  && (length_ == o.length_)
25  && (start_ == o.start_))
26  {
27  for (size_t i=0; i<length_; ++i)
28  {
29  data[i] += o.data[i];
30  }
31  }
32 }
33 
34 void osl::stat::
35 Histogram::show(std::ostream& os) const
36 {
37  int value=start_;
38  for (size_t i=0; i<length_; ++i, value+=width_)
39  {
40  os << std::setw(5) << value << " - " << std::setw(5);
41  os << value+(int)width_;
42  os << " " << std::setw(8) << (size_t)data[i] << "\n";
43  }
44 }
45 
46 void osl::stat::
47 Histogram::showRatio(std::ostream& os, const Histogram& o) const
48 {
49  if ((width_ == o.width_)
50  && (length_ == o.length_)
51  && (start_ == o.start_))
52  {
53  int value=start_;
54  for (size_t i=0; i<length_; ++i, value+=width_)
55  {
56  os << std::setw(5) << value << " - " << std::setw(5);
57  if (i+1 < length_)
58  os << value+(int)width_;
59  else
60  os << " ";
61  os << std::setw(8) << o.data[i]
62  << std::setw(8) << data[i]
63  << std::setw(8) << std::setprecision(2)
64  << static_cast<double>(o.data[i])/data[i] << "\n";
65  }
66  }
67 }
68 
69 /* ------------------------------------------------------------------------- */
70 // ;;; Local Variables:
71 // ;;; mode:c++
72 // ;;; c-basic-offset:2
73 // ;;; End: