| 1 | /*
|
|---|
| 2 | * Copyright (c) 2012 Sean Bartell
|
|---|
| 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 | #ifndef BITHENGE_OS_H_
|
|---|
| 30 | #define BITHENGE_OS_H_
|
|---|
| 31 |
|
|---|
| 32 | #include <bool.h>
|
|---|
| 33 | #include <byteorder.h>
|
|---|
| 34 | #include <errno.h>
|
|---|
| 35 | #include <macros.h>
|
|---|
| 36 | #include <mem.h>
|
|---|
| 37 | #include <stdlib.h>
|
|---|
| 38 | #include <str.h>
|
|---|
| 39 | #include <str_error.h>
|
|---|
| 40 |
|
|---|
| 41 | typedef struct {
|
|---|
| 42 | const char *string;
|
|---|
| 43 | size_t offset;
|
|---|
| 44 | wchar_t ch;
|
|---|
| 45 | } string_iterator_t;
|
|---|
| 46 |
|
|---|
| 47 | static inline string_iterator_t string_iterator(const char *string)
|
|---|
| 48 | {
|
|---|
| 49 | string_iterator_t i;
|
|---|
| 50 | i.string = string;
|
|---|
| 51 | i.offset = 0;
|
|---|
| 52 | i.ch = str_decode(i.string, &i.offset, STR_NO_LIMIT);
|
|---|
| 53 | return i;
|
|---|
| 54 | }
|
|---|
| 55 |
|
|---|
| 56 | static inline bool string_iterator_done(const string_iterator_t *i)
|
|---|
| 57 | {
|
|---|
| 58 | return i->ch == L'\0';
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 | static inline int string_iterator_next(string_iterator_t *i, wchar_t *out)
|
|---|
| 62 | {
|
|---|
| 63 | *out = i->ch;
|
|---|
| 64 | if (*out == U_SPECIAL)
|
|---|
| 65 | return EINVAL;
|
|---|
| 66 | i->ch = str_decode(i->string, &i->offset, STR_NO_LIMIT);
|
|---|
| 67 | return EOK;
|
|---|
| 68 | }
|
|---|
| 69 |
|
|---|
| 70 | static inline void *memchr(const void *s, int c, size_t n)
|
|---|
| 71 | {
|
|---|
| 72 | for (size_t i = 0; i < n; i++)
|
|---|
| 73 | if (((char *)s)[i] == c)
|
|---|
| 74 | return (void *)(s + i);
|
|---|
| 75 | return NULL;
|
|---|
| 76 | }
|
|---|
| 77 |
|
|---|
| 78 | #endif
|
|---|
