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shellSort_dh.c
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42 
43 /* shell sort adopted from Edmond Chow */
44 
45 #include "shellSort_dh.h"
46 
47 #undef __FUNC__
48 #define __FUNC__ "shellSort_int"
49 void
50 shellSort_int (const int n, int *x)
51 {
52  START_FUNC_DH int m, max, j, k, itemp;
53 
54  m = n / 2;
55  while (m > 0)
56  {
57  max = n - m;
58  for (j = 0; j < max; j++)
59  {
60  for (k = j; k >= 0; k -= m)
61  {
62  if (x[k + m] >= x[k])
63  break;
64  itemp = x[k + m];
65  x[k + m] = x[k];
66  x[k] = itemp;
67  }
68  }
69  m = m / 2;
70  }
71 END_FUNC_DH}
72 
73 #undef __FUNC__
74 #define __FUNC__ "shellSort_float"
75 void
76 shellSort_float (const int n, double *x)
77 {
78  START_FUNC_DH int m, max, j, k;
79  double itemp;
80 
81  m = n / 2;
82  while (m > 0)
83  {
84  max = n - m;
85  for (j = 0; j < max; j++)
86  {
87  for (k = j; k >= 0; k -= m)
88  {
89  if (x[k + m] >= x[k])
90  break;
91  itemp = x[k + m];
92  x[k + m] = x[k];
93  x[k] = itemp;
94  }
95  }
96  m = m / 2;
97  }
98 END_FUNC_DH}
99 
100 
101 #if 0
102 #undef __FUNC__
103 #define __FUNC__ "shellSort_int_float"
104 void
105 shellSort_int_float (int n, int *x, VAL_DH * xVals)
106 {
107  START_FUNC_DH int m, max, j, k, itemp;
108  VAL_DH atemp;
109 
110  m = n / 2;
111  while (m > 0)
112  {
113  max = n - m;
114  for (j = 0; j < max; j++)
115  {
116  for (k = j; k >= 0; k -= m)
117  {
118  if (x[k + m] >= x[k])
119  break;
120  itemp = x[k + m];
121  atemp = xVals[k + m];
122  x[k + m] = x[k];
123  /* xVals[k+m] = xVals[k]; */
124  x[k] = itemp;
125  xVals[k] = atemp;
126  }
127  }
128  m = m / 2;
129  }
130 END_FUNC_DH}
131 #endif
shellSort_dh.h
END_FUNC_DH
#define END_FUNC_DH
Definition: macros_dh.h:187
START_FUNC_DH
#define START_FUNC_DH
Definition: macros_dh.h:181
shellSort_float
void shellSort_float(const int n, double *x)
Definition: shellSort_dh.c:76
max
#define max(x, y)
Definition: scscres.c:46
shellSort_int
void shellSort_int(const int n, int *x)
Definition: shellSort_dh.c:50
n
int n
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