1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
sum.c
Ruby/GSL: Ruby extension library for GSL (GNU Scientific Library)
(C) Copyright 2001-2006 by Yoshiki Tsunesada
Ruby/GSL is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY.
*/
#include "rb_gsl_config.h"
#include "rb_gsl_array.h"
#include <gsl/gsl_sum.h>
static VALUE rb_gsl_sum_accel(VALUE obj)
{
gsl_sum_levin_u_workspace *w = NULL;
double sum, err, sum_plain, *ptr;
size_t terms_used, n, stride;
ptr = get_vector_ptr(obj, &stride, &n);
w = gsl_sum_levin_u_alloc(n);
gsl_sum_levin_u_accel(ptr, n, w, &sum, &err);
sum_plain = w->sum_plain;
terms_used = w->terms_used;
gsl_sum_levin_u_free(w);
return rb_ary_new3(4, rb_float_new(sum), rb_float_new(err),
rb_float_new(sum_plain), INT2FIX(terms_used));
}
static VALUE rb_gsl_utrunc_accel(VALUE obj)
{
gsl_sum_levin_utrunc_workspace *w = NULL;
double sum, err, sum_plain, *ptr;
size_t terms_used, n, stride;
ptr = get_vector_ptr(obj, &stride, &n);
w = gsl_sum_levin_utrunc_alloc(n);
gsl_sum_levin_utrunc_accel(ptr, n, w, &sum, &err);
sum_plain = w->sum_plain;
terms_used = w->terms_used;
gsl_sum_levin_utrunc_free(w);
return rb_ary_new3(4, rb_float_new(sum), rb_float_new(err),
rb_float_new(sum_plain), INT2FIX(terms_used));
}
static VALUE rb_gsl_sum_levin_u_new(VALUE klass, VALUE nn)
{
gsl_sum_levin_u_workspace *w = NULL;
CHECK_FIXNUM(nn);
w = gsl_sum_levin_u_alloc(FIX2INT(nn));
return Data_Wrap_Struct(klass, 0, gsl_sum_levin_u_free, w);
}
static VALUE rb_gsl_sum_levin_utrunc_new(VALUE klass, VALUE nn)
{
gsl_sum_levin_utrunc_workspace *w = NULL;
CHECK_FIXNUM(nn);
w = gsl_sum_levin_utrunc_alloc(FIX2INT(nn));
return Data_Wrap_Struct(klass, 0, gsl_sum_levin_utrunc_free, w);
}
/* singleton */
static VALUE rb_gsl_sum_levin_u_accel2(VALUE obj, VALUE vv)
{
gsl_sum_levin_u_workspace *w = NULL;
double sum, err, sum_plain;
size_t terms_used, n, stride;
double *ptr;
ptr = get_vector_ptr(vv, &stride, &n);
w = gsl_sum_levin_u_alloc(n);
gsl_sum_levin_u_accel(ptr, n, w, &sum, &err);
sum_plain = w->sum_plain;
terms_used = w->terms_used;
gsl_sum_levin_u_free(w);
return rb_ary_new3(4, rb_float_new(sum), rb_float_new(err),
rb_float_new(sum_plain), INT2FIX(terms_used));
}
static VALUE rb_gsl_sum_levin_utrunc_accel2(VALUE obj, VALUE vv)
{
gsl_sum_levin_utrunc_workspace *w = NULL;
double sum, err, sum_plain;
size_t terms_used, n, stride;
double *ptr;
ptr = get_vector_ptr(vv, &stride, &n);
w = gsl_sum_levin_utrunc_alloc(n);
gsl_sum_levin_utrunc_accel(ptr, n, w, &sum, &err);
sum_plain = w->sum_plain;
terms_used = w->terms_used;
gsl_sum_levin_utrunc_free(w);
return rb_ary_new3(4, rb_float_new(sum), rb_float_new(err),
rb_float_new(sum_plain), INT2FIX(terms_used));
}
static VALUE rb_gsl_sum_levin_u_sum_plain(VALUE obj)
{
gsl_sum_levin_u_workspace *w = NULL;
Data_Get_Struct(obj, gsl_sum_levin_u_workspace, w);
return rb_float_new(w->sum_plain);
}
static VALUE rb_gsl_sum_levin_u_terms_used(VALUE obj)
{
gsl_sum_levin_u_workspace *w = NULL;
Data_Get_Struct(obj, gsl_sum_levin_u_workspace, w);
return INT2FIX(w->terms_used);
}
static VALUE rb_gsl_sum_levin_utrunc_sum_plain(VALUE obj)
{
gsl_sum_levin_utrunc_workspace *w = NULL;
Data_Get_Struct(obj, gsl_sum_levin_utrunc_workspace, w);
return rb_float_new(w->sum_plain);
}
static VALUE rb_gsl_sum_levin_utrunc_terms_used(VALUE obj)
{
gsl_sum_levin_utrunc_workspace *w = NULL;
Data_Get_Struct(obj, gsl_sum_levin_utrunc_workspace, w);
return INT2FIX(w->terms_used);
}
void Init_gsl_sum(VALUE module)
{
VALUE mgsl_sum;
VALUE cgsl_sum_levin_u, cgsl_sum_levin_utrunc;
mgsl_sum = rb_define_module_under(module, "Sum");
cgsl_sum_levin_u = rb_define_class_under(mgsl_sum,
"Levin_u", cGSL_Object);
cgsl_sum_levin_utrunc = rb_define_class_under(mgsl_sum,
"Levin_utrunc", cGSL_Object);
rb_define_singleton_method(cgsl_sum_levin_u, "new", rb_gsl_sum_levin_u_new, 1);
rb_define_singleton_method(cgsl_sum_levin_u, "alloc", rb_gsl_sum_levin_u_new, 1);
rb_define_singleton_method(cgsl_sum_levin_utrunc, "new",
rb_gsl_sum_levin_utrunc_new, 1);
rb_define_singleton_method(cgsl_sum_levin_utrunc, "alloc",
rb_gsl_sum_levin_utrunc_new, 1);
rb_define_singleton_method(cgsl_sum_levin_u, "accel",
rb_gsl_sum_levin_u_accel2, 1);
rb_define_singleton_method(cgsl_sum_levin_utrunc, "accel",
rb_gsl_sum_levin_utrunc_accel2, 1);
rb_define_method(cgsl_sum_levin_u, "accel", rb_gsl_sum_levin_u_accel2, 1);
rb_define_method(cgsl_sum_levin_utrunc, "accel",
rb_gsl_sum_levin_utrunc_accel2, 1);
rb_define_method(cgsl_sum_levin_u, "sum_plain", rb_gsl_sum_levin_u_sum_plain, 0);
rb_define_method(cgsl_sum_levin_u, "terms_used",
rb_gsl_sum_levin_u_terms_used, 0);
rb_define_method(cgsl_sum_levin_utrunc, "sum_plain",
rb_gsl_sum_levin_utrunc_sum_plain, 0);
rb_define_method(cgsl_sum_levin_utrunc, "terms_used",
rb_gsl_sum_levin_utrunc_terms_used, 0);
/***/
rb_define_method(cgsl_vector, "accel_sum", rb_gsl_sum_accel, 0);
rb_define_alias(cgsl_vector, "accel", "accel_sum");
rb_define_alias(cgsl_vector, "sum_accel", "accel_sum");
rb_define_method(cgsl_vector, "utrunc_accel", rb_gsl_utrunc_accel, 0);
#ifdef HAVE_NARRAY_H
rb_define_method(cNArray, "accel_sum", rb_gsl_sum_accel, 0);
rb_define_alias(cNArray, "accel", "accel_sum");
rb_define_alias(cNArray, "sum_accel", "accel_sum");
rb_define_method(cNArray, "utrunc_accel", rb_gsl_utrunc_accel, 0);
#endif
}
|
