dmd.backend.mem source code

1 /**
2  * Compiler implementation of the
3  * $(LINK2 https://www.dlang.org, D programming language).
4  *
5  * Copyright:   Copyright (C) 1985-1998 by Symantec
6  *              Copyright (C) 2000-2023 by The D Language Foundation, All Rights Reserved
7  * Authors:     $(LINK2 https://www.digitalmars.com, Walter Bright)
8  * License:     $(LINK2 https://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
9  * Source:      $(LINK2 https://github.com/dlang/dmd/blob/master/src/dmd/backend/mem.d, backend/mem.d)
10  * Coverage:    https://codecov.io/gh/dlang/dmd/src/master/src/dmd/backend/mem.d
11  */
12 
13 
14 module dmd.backend.mem;
15 
16 import core.stdc.stdlib : malloc, calloc, realloc, free;
17 import core.stdc.string : strdup;
18 
19 import dmd.backend.global : err_nomem;
20 
21 extern (C):
22 
23 nothrow:
24 @nogc:
25 @safe:
26 
27 @trusted
28 char* mem_strdup(const char* s)
29 {
30     auto p = strdup(s);
31     if (!p && s)
32         err_nomem();
33     return p;
34 }
35 
36 @trusted
37 void* mem_malloc(size_t u)
38 {
39     auto p = malloc(u);
40     if (!p && u)
41         err_nomem();
42     return p;
43 }
44 
45 alias mem_fmalloc = mem_malloc;
46 
47 @trusted
48 void* mem_calloc(size_t u)
49 {
50     auto p = calloc(u, 1);
51     if (!p && u)
52         err_nomem();
53     return p;
54 }
55 
56 @trusted
57 void* mem_realloc(void* p, size_t u)
58 {
59     p = realloc(p, u);
60     if (!p && u)
61         err_nomem();
62     return p;
63 }
64 
65 @trusted
66 void mem_free(void* p) { free(p); }
67 
68 extern (C++)
69 {
70     void mem_free_cpp(void *);
71     alias mem_freefp = mem_free_cpp;
72 }
73 
74 version (MEM_DEBUG)
75 {
76     alias mem_fstrdup = mem_strdup;
77     alias mem_fcalloc = mem_calloc;
78     alias mem_fmalloc = mem_malloc;
79     alias mem_ffree   = mem_free;
80 }
81 else
82 {
83     @trusted
84     char *mem_fstrdup(const(char) *);
85 
86     @trusted
87     void *mem_fcalloc(size_t);
88 
89     @trusted
90     void *mem_fmalloc(size_t);
91 
92     @trusted
93     void mem_ffree(void *) { }
94 }