foobar2000 SDK  2015-08-03
Static Public Member Functions
pfc::binarySearch< t_comparator >

#include <binary_search.h>

Static Public Member Functions

template<typename t_container , typename t_param >
static bool run (const t_container &p_container, t_size p_base, t_size p_count, const t_param &p_param, t_size &p_result)
 
template<typename t_container , typename t_param >
static bool runGroup (const t_container &p_container, t_size p_base, t_size p_count, const t_param &p_param, t_size &p_result, t_size &p_resultCount)
 
template<typename t_container , typename t_param >
static bool runGroupBegin (const t_container &p_container, t_size p_base, t_size p_count, const t_param &p_param, t_size &p_result)
 
template<typename t_container , typename t_param >
static bool runGroupEnd (const t_container &p_container, t_size p_base, t_size p_count, const t_param &p_param, t_size &p_result)
 

Detailed Description

template<typename t_comparator = comparator_default>
class pfc::binarySearch< t_comparator >

Definition at line 5 of file binary_search.h.

Member Function Documentation

template<typename t_comparator = comparator_default>
template<typename t_container , typename t_param >
static bool pfc::binarySearch< t_comparator >::run ( const t_container &  p_container,
t_size  p_base,
t_size  p_count,
const t_param &  p_param,
t_size &  p_result 
)
inlinestatic

Definition at line 9 of file binary_search.h.

9  {
10  t_size max = p_base + p_count;
11  t_size min = p_base;
12  while(min<max) {
13  t_size ptr = min + ( (max-min) >> 1);
14  int state = t_comparator::compare(p_param,p_container[ptr]);
15  if (state > 0) min = ptr + 1;
16  else if (state < 0) max = ptr;
17  else {
18  p_result = ptr;
19  return true;
20  }
21  }
22  p_result = min;
23  return false;
24  }
pfc::io::path::compare
int compare(t1 const &p1, t2 const &p2)
Definition: pathUtils.h:29
t_size
size_t t_size
Definition: int_types.h:48
template<typename t_comparator = comparator_default>
template<typename t_container , typename t_param >
static bool pfc::binarySearch< t_comparator >::runGroup ( const t_container &  p_container,
t_size  p_base,
t_size  p_count,
const t_param &  p_param,
t_size &  p_result,
t_size &  p_resultCount 
)
inlinestatic

Definition at line 64 of file binary_search.h.

64  {
65  if (!runGroupBegin(p_container,p_base,p_count,p_param,p_result)) {
66  p_resultCount = 0;
67  return false;
68  }
69  t_size groupEnd;
70  if (!runGroupEnd(p_container,p_result,p_count - p_result,p_param,groupEnd)) {
71  //should not happen..
72  PFC_ASSERT(0);
73  p_resultCount = 0;
74  return false;
75  }
76  PFC_ASSERT(groupEnd > p_result);
77  p_resultCount = groupEnd - p_result;
78  return true;
79  }
pfc::binarySearch::runGroupBegin
static bool runGroupBegin(const t_container &p_container, t_size p_base, t_size p_count, const t_param &p_param, t_size &p_result)
Definition: binary_search.h:28
t_size
size_t t_size
Definition: int_types.h:48
pfc::binarySearch::runGroupEnd
static bool runGroupEnd(const t_container &p_container, t_size p_base, t_size p_count, const t_param &p_param, t_size &p_result)
Definition: binary_search.h:46
template<typename t_comparator = comparator_default>
template<typename t_container , typename t_param >
static bool pfc::binarySearch< t_comparator >::runGroupBegin ( const t_container &  p_container,
t_size  p_base,
t_size  p_count,
const t_param &  p_param,
t_size &  p_result 
)
inlinestatic

Definition at line 28 of file binary_search.h.

28  {
29  t_size max = p_base + p_count;
30  t_size min = p_base;
31  bool found = false;
32  while(min<max) {
33  t_size ptr = min + ( (max-min) >> 1);
34  int state = t_comparator::compare(p_param,p_container[ptr]);
35  if (state > 0) min = ptr + 1;
36  else if (state < 0) max = ptr;
37  else {
38  found = true; max = ptr;
39  }
40  }
41  p_result = min;
42  return found;
43  }
pfc::io::path::compare
int compare(t1 const &p1, t2 const &p2)
Definition: pathUtils.h:29
t_size
size_t t_size
Definition: int_types.h:48
template<typename t_comparator = comparator_default>
template<typename t_container , typename t_param >
static bool pfc::binarySearch< t_comparator >::runGroupEnd ( const t_container &  p_container,
t_size  p_base,
t_size  p_count,
const t_param &  p_param,
t_size &  p_result 
)
inlinestatic

Definition at line 46 of file binary_search.h.

46  {
47  t_size max = p_base + p_count;
48  t_size min = p_base;
49  bool found = false;
50  while(min<max) {
51  t_size ptr = min + ( (max-min) >> 1);
52  int state = t_comparator::compare(p_param,p_container[ptr]);
53  if (state > 0) min = ptr + 1;
54  else if (state < 0) max = ptr;
55  else {
56  found = true; min = ptr + 1;
57  }
58  }
59  p_result = min;
60  return found;
61  }
pfc::io::path::compare
int compare(t1 const &p1, t2 const &p2)
Definition: pathUtils.h:29
t_size
size_t t_size
Definition: int_types.h:48
The documentation for this class was generated from the following file:
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