source: src/tests/alloc.c@ 3787dc1

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new with_gc
Last change on this file since 3787dc1 was cdbfab0, checked in by Rob Schluntz <rschlunt@…>, 8 years ago

Remove unsafe void * constructors and assignment operators from prelude [closes #24] [fixes #51]
  • Property mode set to 100644
File size: 8.2 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// alloc.c --
8//
9// Author : Peter A. Buhr
10// Created On : Wed Feb 3 07:56:22 2016
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Thu Jul 20 16:01:10 2017
13// Update Count : 318
14//
15
16#include <assert.h>
17#include <malloc.h> // malloc_usable_size
18#include <stdint.h> // uintptr_t
19#include <stdlib.h> // posix_memalign
20#include <fstream>
21#include <stdlib> // access C malloc, realloc
22
23int * foo( int * p, int c ) { return p; }
24int * bar( int * p, int c ) { return p; }
25int * baz( int * p, int c ) { return p; }
26
27int main( void ) {
28 size_t dim = 10;
29 int * p;
30 char fill = '\1';
31
32 // allocation, non-array types
33
34 p = (int *)(void *)malloc( sizeof(*p) ); // C malloc, type unsafe
35 *p = 0xdeadbeef;
36 printf( "C malloc %#x\n", *p );
37 free( p );
38
39 p = malloc(); // CFA malloc, type safe
40 *p = 0xdeadbeef;
41 printf( "CFA malloc %#x\n", *p );
42 free( p );
43
44 p = alloc(); // CFA alloc, type safe
45 *p = 0xdeadbeef;
46 printf( "CFA alloc %#x\n", *p );
47 free( p );
48
49 p = alloc( fill ); // CFA alloc, fill
50 printf( "CFA alloc, fill %08x\n", *p );
51
52
53 // allocation, array types
54 printf( "\n" );
55
56 p = (int *)calloc( dim, sizeof( *p ) ); // C array calloc, type unsafe
57 printf( "C array calloc, fill 0\n" );
58 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x ", p[i] ); }
59 printf( "\n" );
60 free( p );
61
62 p = calloc( dim ); // CFA array calloc, type safe
63 printf( "CFA array calloc, fill 0\n" );
64 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x ", p[i] ); }
65 printf( "\n" );
66 free( p );
67
68 p = alloc( dim ); // CFA array alloc, type safe
69 for ( int i = 0; i < dim; i += 1 ) { p[i] = 0xdeadbeef; }
70 printf( "CFA array alloc, no fill\n" );
71 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x ", p[i] ); }
72 printf( "\n" );
73 free( p );
74
75 p = alloc( 2 * dim, fill ); // CFA array alloc, fill
76 printf( "CFA array alloc, fill %#x\n", fill );
77 for ( int i = 0; i < 2 * dim; i += 1 ) { printf( "%#x ", p[i] ); }
78 printf( "\n" );
79 // do not free
80
81
82 // resize, non-array types
83 printf( "\n" );
84
85 p = (int *)(void *)realloc( p, dim * sizeof(*p) ); // C realloc
86 for ( int i = 0; i < dim; i += 1 ) { p[i] = 0xdeadbeef; }
87 printf( "C realloc\n" );
88 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x ", p[i] ); }
89 printf( "\n" );
90
91 p = realloc( p, 2 * dim * sizeof(*p) ); // CFA realloc
92 for ( int i = dim; i < 2 * dim; i += 1 ) { p[i] = 0x1010101; }
93 printf( "CFA realloc\n" );
94 for ( int i = 0; i < 2 * dim; i += 1 ) { printf( "%#x ", p[i] ); }
95 printf( "\n" );
96 // do not free
97
98
99 // resize, array types
100 printf( "\n" );
101
102 p = alloc( p, dim ); // CFA resize array alloc
103 for ( int i = 0; i < dim; i += 1 ) { p[i] = 0xdeadbeef; }
104 printf( "CFA resize alloc\n" );
105 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x ", p[i] ); }
106 printf( "\n" );
107
108 p = alloc( p, 2 * dim ); // CFA resize array alloc
109 for ( int i = dim; i < 2 * dim; i += 1 ) { p[i] = 0x1010101; }
110 printf( "CFA resize array alloc\n" );
111 for ( int i = 0; i < 2 * dim; i += 1 ) { printf( "%#x ", p[i] ); }
112 printf( "\n" );
113
114 p = alloc( p, dim ); // CFA array alloc
115 printf( "CFA resize array alloc\n" );
116 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x ", p[i] ); }
117 printf( "\n" );
118
119 free( p );
120 p = 0;
121
122 p = alloc( p, dim, fill ); // CFA array alloc, fill
123 printf( "CFA resize array alloc, fill\n" );
124 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x ", p[i] ); }
125 printf( "\n" );
126
127 p = alloc( p, 2 * dim, fill ); // CFA array alloc, fill
128 printf( "CFA resize array alloc, fill\n" );
129 for ( int i = 0; i < 2 * dim; i += 1 ) { printf( "%#x ", p[i] ); }
130 printf( "\n" );
131
132 p = alloc( p, dim, fill ); // CFA array alloc, fill
133 printf( "CFA resize array alloc, fill\n" );
134 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x ", p[i] );; }
135 printf( "\n" );
136 free( p );
137
138
139 struct Struct { int x; double y; };
140 Struct st, st1, sta[dim], sta1[dim], * stp, * stp1;
141
142 // alignment, non-array types
143 printf( "\n" );
144 enum { Alignment = 128 };
145
146 stp = &(*(Struct*)memalign( Alignment, sizeof( *stp ) ) ){ 42, 42.5 }; // C memalign
147 assert( (uintptr_t)stp % Alignment == 0 );
148 printf( "C memalign %d %g\n", stp->x, stp->y );
149 free( stp );
150
151 stp = &(*memalign( Alignment )){ 42, 42.5 }; // CFA memalign
152 assert( (uintptr_t)stp % Alignment == 0 );
153 printf( "CFA memalign %d %g\n", stp->x, stp->y );
154 free( stp );
155
156 posix_memalign( (void **)&stp, Alignment, sizeof( *stp ) ); // C posix_memalign
157 *stp = (Struct){ 42, 42.5 };
158 assert( (uintptr_t)stp % Alignment == 0 );
159 printf( "CFA posix_memalign %d %g\n", stp->x, stp->y );
160 free( stp );
161
162 posix_memalign( &stp, Alignment ); // CFA posix_memalign
163 *stp = (Struct){ 42, 42.5 };
164 assert( (uintptr_t)stp % Alignment == 0 );
165 printf( "CFA posix_memalign %d %g\n", stp->x, stp->y );
166 free( stp );
167
168 stp = &(*aligned_alloc( Alignment )){ 42, 42.5 }; // CFA aligned_alloc
169 assert( (uintptr_t)stp % Alignment == 0 );
170 printf( "CFA aligned_alloc %d %g\n", stp->x, stp->y );
171 free( stp );
172
173 stp = &(*align_alloc( Alignment )){ 42, 42.5 }; // CFA align_alloc
174 assert( (uintptr_t)stp % Alignment == 0 );
175 printf( "CFA align_alloc %d %g\n", stp->x, stp->y );
176 free( stp );
177
178 stp = align_alloc( Alignment, fill ); // CFA memalign, fill
179 assert( (uintptr_t)stp % Alignment == 0 );
180 printf( "CFA align_alloc fill %#x %a\n", stp->x, stp->y );
181 free( stp );
182
183
184 // alignment, array types
185 printf( "\n" );
186
187 stp = align_alloc( Alignment, dim ); // CFA array memalign
188 assert( (uintptr_t)stp % Alignment == 0 );
189 for ( int i = 0; i < dim; i += 1 ) { stp[i] = (Struct){ 42, 42.5 }; }
190 printf( "CFA array align_alloc\n" );
191 for ( int i = 0; i < dim; i += 1 ) { printf( "%d %g, ", stp[i].x, stp[i].y ); }
192 printf( "\n" );
193 free( stp );
194
195 stp = align_alloc( Alignment, dim, fill ); // CFA array memalign, fill
196 assert( (uintptr_t)stp % Alignment == 0 );
197 printf( "CFA array align_alloc, fill\n" );
198 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x %a, ", stp[i].x, stp[i].y ); }
199 printf( "\n" );
200 free( stp );
201
202
203 // data, non-array types
204 printf( "\n" );
205
206 memset( &st, fill ); // CFA memset, type safe
207 printf( "CFA memset %#x %a\n", st.x, st.y );
208 memcpy( &st1, &st ); // CFA memcpy, type safe
209 printf( "CFA memcpy %#x %a\n", st1.x, st1.y );
210
211
212 // data, array types
213 printf( "\n" );
214
215 memset( sta, dim, fill ); // CFA array memset, type safe
216 printf( "CFA array memset\n" );
217 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x %a, ", sta[i].x, sta[i].y ); }
218 printf( "\n" );
219
220 memcpy( sta1, sta, dim ); // CFA array memcpy, type safe
221 printf( "CFA memcpy\n" );
222 for ( int i = 0; i < dim; i += 1 ) { printf( "%#x %a, ", sta1[i].x, sta1[i].y ); }
223 printf( "\n" );
224
225
226 // new, non-array types
227 printf( "\n" );
228
229 stp = new( 42, 42.5 );
230 stp1 = new( 42, 42.5 );
231 printf( "CFA new initialize\n%d %g %d %g\n", stp->x, stp->y, stp1->x, stp1->y );
232 delete( stp, stp1 );
233
234 // new, array types
235 stp = anew( dim, 42, 42.5 );
236 printf( "CFA array new initialize\n" );
237 for ( int i = 0; i < dim; i += 1 ) { printf( "%d %g, ", stp[i].x, stp[i].y ); }
238 printf( "\n" );
239 stp1 = anew( dim, 42, 42.5 );
240 for ( int i = 0; i < dim; i += 1 ) { printf( "%d %g, ", stp1[i].x, stp1[i].y ); }
241 printf( "\n" );
242 adelete( dim, stp, dim, stp1 );
243
244 // extras
245 printf( "\n" );
246
247 float * fp = malloc() + 1;
248 printf( "pointer arithmetic %d\n", fp == fp - 1 );
249 free( fp - 1 );
250
251 p = foo( bar( baz( malloc(), 0 ), 0 ), 0 );
252 *p = 0xdeadbeef;
253 printf( "CFA deep malloc %#x\n", *p );
254 free( p );
255
256 stp = malloc();
257 printf( "\nSHOULD FAIL\n" );
258#ifdef ERR1
259 p = alloc( stp, dim * sizeof(*stp) );
260 p = memset( stp, 10 );
261 p = memcpy( &st1, &st );
262#endif
263} // main
264
265// Local Variables: //
266// tab-width: 4 //
267// compile-command: "cfa alloc.c" //
268// End: //
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