Merge tag 'pull-target-arm-20220812' of https://git.linaro.org/people/pmaydell/qemu...
[qemu.git] / pc-bios / s390-ccw / libc.h
1 /*
2 * libc-style definitions and functions
3 *
4 * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
5 *
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
15 typedef unsigned long size_t;
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 {
24 size_t i;
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;
38 size_t i;
39
40 for (i = 0; i < n; i++) {
41 dest[i] = src[i];
42 }
43
44 return s1;
45 }
46
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 char *strcat(char *dest, const char *src)
71 {
72 int i;
73 char *dest_end = dest + strlen(dest);
74
75 for (i = 0; i <= strlen(src); i++) {
76 dest_end[i] = src[i];
77 }
78 return dest;
79 }
80
81 static inline int isdigit(int c)
82 {
83 return (c >= '0') && (c <= '9');
84 }
85
86 uint64_t atoui(const char *str);
87 char *uitoa(uint64_t num, char *str, size_t len);
88
89 #endif