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90806fec TH |
1 | /* |
2 | * libc-style definitions and functions | |
3 | * | |
fc0e2087 CW |
4 | * Copyright (c) 2013 Alexander Graf <agraf@suse.de> |
5 | * | |
90806fec TH |
6 | * This code is free software; you can redistribute it and/or modify it |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. | |
10 | */ | |
11 | ||
12 | #ifndef S390_CCW_LIBC_H | |
13 | #define S390_CCW_LIBC_H | |
14 | ||
e4f86962 | 15 | typedef unsigned long size_t; |
90806fec TH |
16 | typedef int bool; |
17 | typedef unsigned char uint8_t; | |
18 | typedef unsigned short uint16_t; | |
19 | typedef unsigned int uint32_t; | |
20 | typedef unsigned long long uint64_t; | |
21 | ||
22 | static inline void *memset(void *s, int c, size_t n) | |
23 | { | |
fc0e2087 | 24 | size_t i; |
90806fec TH |
25 | unsigned char *p = s; |
26 | ||
27 | for (i = 0; i < n; i++) { | |
28 | p[i] = c; | |
29 | } | |
30 | ||
31 | return s; | |
32 | } | |
33 | ||
34 | static inline void *memcpy(void *s1, const void *s2, size_t n) | |
35 | { | |
36 | uint8_t *dest = s1; | |
37 | const uint8_t *src = s2; | |
fc0e2087 | 38 | size_t i; |
90806fec TH |
39 | |
40 | for (i = 0; i < n; i++) { | |
41 | dest[i] = src[i]; | |
42 | } | |
43 | ||
44 | return s1; | |
45 | } | |
46 | ||
fc0e2087 CW |
47 | static inline int memcmp(const void *s1, const void *s2, size_t n) |
48 | { | |
49 | size_t i; | |
50 | const uint8_t *p1 = s1, *p2 = s2; | |
51 | ||
52 | for (i = 0; i < n; i++) { | |
53 | if (p1[i] != p2[i]) { | |
54 | return p1[i] > p2[i] ? 1 : -1; | |
55 | } | |
56 | } | |
57 | ||
58 | return 0; | |
59 | } | |
60 | ||
61 | static inline size_t strlen(const char *str) | |
62 | { | |
63 | size_t i; | |
64 | for (i = 0; *str; i++) { | |
65 | str++; | |
66 | } | |
67 | return i; | |
68 | } | |
69 | ||
70 | static inline int isdigit(int c) | |
71 | { | |
72 | return (c >= '0') && (c <= '9'); | |
73 | } | |
74 | ||
75 | uint64_t atoui(const char *str); | |
76 | char *uitoa(uint64_t num, char *str, size_t len); | |
77 | ||
90806fec | 78 | #endif |