source: mainline/uspace/lib/c/include/stdlib.h@ 7d7f5e3

ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 7d7f5e3 was 28a5ebd, checked in by Martin Decky <martin@…>, 5 years ago

Use char32_t instead of wchat_t to represent UTF-32 strings

The intention of the native HelenOS string API has been always to
support Unicode in the UTF-8 and UTF-32 encodings as the sole character
representations and ignore the obsolete mess of older single-byte and
multibyte character encodings. Before C11, the wchar_t type has been
slightly misused for the purpose of the UTF-32 strings. The newer
char32_t type is obviously a much more suitable option. The standard
defines char32_t as uint_least32_t, thus we can take the liberty to fix
it to uint32_t.

To maintain compatilibity with the C Standard, the putwchar(wchar_t)
functions has been replaced by our custom putuchar(char32_t) functions
where appropriate.

  • Property mode set to 100644
File size: 3.2 KB
Line 
1/*
2 * Copyright (c) 2005 Martin Decky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libc
30 * @{
31 */
32/** @file
33 */
34
35#ifndef _LIBC_STDLIB_H_
36#define _LIBC_STDLIB_H_
37
38#include <_bits/size_t.h>
39#include <_bits/wchar_t.h>
40#include <_bits/uchar.h>
41#include <_bits/decls.h>
42#include <bsearch.h>
43#include <malloc.h>
44#include <qsort.h>
45
46#define EXIT_SUCCESS 0
47#define EXIT_FAILURE 1
48
49#define RAND_MAX 714025
50
51#define MB_CUR_MAX 4
52
53__C_DECLS_BEGIN;
54
55/** Type returned by the div function */
56typedef struct {
57 /** Quotient */
58 int quot;
59 /** Remainder */
60 int rem;
61} div_t;
62
63/** Type returned by the ldiv function */
64typedef struct {
65 /** Quotient */
66 long quot;
67 /** Remainder */
68 long rem;
69} ldiv_t;
70
71/** Type returned by the lldiv function */
72typedef struct {
73 /** Quotient */
74 long long quot;
75 /** Remainder */
76 long long rem;
77} lldiv_t;
78
79extern long double strtold(const char *, char **);
80
81extern int rand(void);
82extern void srand(unsigned int);
83
84extern void abort(void) __attribute__((noreturn));
85extern int atexit(void (*)(void));
86extern void exit(int) __attribute__((noreturn));
87extern void _Exit(int) __attribute__((noreturn));
88extern int at_quick_exit(void (*)(void));
89extern void quick_exit(int);
90
91extern char *getenv(const char *);
92extern int system(const char *);
93
94extern int abs(int);
95extern long labs(long);
96extern long long llabs(long long);
97
98extern int atoi(const char *);
99extern long atol(const char *);
100extern long long atoll(const char *);
101
102extern long strtol(const char *__restrict__, char **__restrict__, int);
103extern long long strtoll(const char *__restrict__, char **__restrict__, int);
104extern unsigned long strtoul(const char *__restrict__, char **__restrict__, int);
105extern unsigned long long strtoull(const char *__restrict__, char **__restrict__, int);
106
107extern div_t div(int, int);
108extern ldiv_t ldiv(long, long);
109extern lldiv_t lldiv(long long, long long);
110
111__C_DECLS_END;
112
113#endif
114
115/** @}
116 */
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