comparison dmd2/array.c @ 758:f04dde6e882c

Added initial D2 support, D2 frontend and changes to codegen to make things compile.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 11 Nov 2008 01:38:48 +0100
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757:2c730d530c98 758:f04dde6e882c
1
2 // Copyright (c) 1999-2006 by Digital Mars
3 // All Rights Reserved
4 // written by Walter Bright
5 // www.digitalmars.com
6 // License for redistribution is by either the Artistic License
7 // in artistic.txt, or the GNU General Public License in gnu.txt.
8 // See the included readme.txt for details.
9
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <stdarg.h>
13 #include <string.h>
14 #include <assert.h>
15
16 #if _MSC_VER || __MINGW32__
17 #include <malloc.h>
18 #endif
19
20 #if IN_GCC
21 #include "gdc_alloca.h"
22 #endif
23
24 #if _WIN32
25 #include <windows.h>
26 #endif
27
28 #ifndef _WIN32
29 #include <sys/types.h>
30 #include <sys/stat.h>
31 #include <fcntl.h>
32 #include <errno.h>
33 #include <unistd.h>
34 #include <utime.h>
35 #endif
36
37 #include "port.h"
38 #include "root.h"
39 #include "dchar.h"
40 #include "mem.h"
41
42
43 /********************************* Array ****************************/
44
45 Array::Array()
46 {
47 data = NULL;
48 dim = 0;
49 allocdim = 0;
50 }
51
52 Array::~Array()
53 {
54 mem.free(data);
55 }
56
57 void Array::mark()
58 { unsigned u;
59
60 mem.mark(data);
61 for (u = 0; u < dim; u++)
62 mem.mark(data[u]); // BUG: what if arrays of Object's?
63 }
64
65 void Array::reserve(unsigned nentries)
66 {
67 //printf("Array::reserve: size = %d, offset = %d, nbytes = %d\n", size, offset, nbytes);
68 if (allocdim - dim < nentries)
69 {
70 allocdim = dim + nentries;
71 data = (void **)mem.realloc(data, allocdim * sizeof(*data));
72 }
73 }
74
75 void Array::setDim(unsigned newdim)
76 {
77 if (dim < newdim)
78 {
79 reserve(newdim - dim);
80 }
81 dim = newdim;
82 }
83
84 void Array::fixDim()
85 {
86 if (dim != allocdim)
87 { data = (void **)mem.realloc(data, dim * sizeof(*data));
88 allocdim = dim;
89 }
90 }
91
92 void Array::push(void *ptr)
93 {
94 reserve(1);
95 data[dim++] = ptr;
96 }
97
98 void *Array::pop()
99 {
100 return data[--dim];
101 }
102
103 void Array::shift(void *ptr)
104 {
105 reserve(1);
106 memmove(data + 1, data, dim * sizeof(*data));
107 data[0] = ptr;
108 dim++;
109 }
110
111 void Array::insert(unsigned index, void *ptr)
112 {
113 reserve(1);
114 memmove(data + index + 1, data + index, (dim - index) * sizeof(*data));
115 data[index] = ptr;
116 dim++;
117 }
118
119
120 void Array::insert(unsigned index, Array *a)
121 {
122 if (a)
123 { unsigned d;
124
125 d = a->dim;
126 reserve(d);
127 if (dim != index)
128 memmove(data + index + d, data + index, (dim - index) * sizeof(*data));
129 memcpy(data + index, a->data, d * sizeof(*data));
130 dim += d;
131 }
132 }
133
134
135 /***********************************
136 * Append array a to this array.
137 */
138
139 void Array::append(Array *a)
140 {
141 insert(dim, a);
142 }
143
144 void Array::remove(unsigned i)
145 {
146 memmove(data + i, data + i + 1, (dim - i) * sizeof(data[0]));
147 dim--;
148 }
149
150 char *Array::toChars()
151 {
152 unsigned len;
153 unsigned u;
154 char **buf;
155 char *str;
156 char *p;
157
158 buf = (char **)alloca(dim * sizeof(char *));
159 len = 2;
160 for (u = 0; u < dim; u++)
161 {
162 buf[u] = ((Object *)data[u])->toChars();
163 len += strlen(buf[u]) + 1;
164 }
165 str = (char *)mem.malloc(len);
166
167 str[0] = '[';
168 p = str + 1;
169 for (u = 0; u < dim; u++)
170 {
171 if (u)
172 *p++ = ',';
173 len = strlen(buf[u]);
174 memcpy(p,buf[u],len);
175 p += len;
176 }
177 *p++ = ']';
178 *p = 0;
179 return str;
180 }
181
182 void Array::zero()
183 {
184 memset(data,0,dim * sizeof(data[0]));
185 }
186
187 void *Array::tos()
188 {
189 return dim ? data[dim - 1] : NULL;
190 }
191
192 int
193 #if _WIN32
194 __cdecl
195 #endif
196 Array_sort_compare(const void *x, const void *y)
197 {
198 Object *ox = *(Object **)x;
199 Object *oy = *(Object **)y;
200
201 return ox->compare(oy);
202 }
203
204 void Array::sort()
205 {
206 if (dim)
207 {
208 qsort(data, dim, sizeof(Object *), Array_sort_compare);
209 }
210 }
211
212 Array *Array::copy()
213 {
214 Array *a = new Array();
215
216 a->setDim(dim);
217 memcpy(a->data, data, dim * sizeof(void *));
218 return a;
219 }
220