vsprintf.c (20036fdcaf05fac0a84ed81a56906493a7d822e2) vsprintf.c (aa46a63efc896f0a6d54e7614e750788793582e5)
1/*
2 * linux/lib/vsprintf.c
3 *
4 * Copyright (C) 1991, 1992 Linus Torvalds
5 */
6
7/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
8/*

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27
28#include <asm/page.h> /* for PAGE_SIZE */
29#include <asm/div64.h>
30#include <asm/sections.h> /* for dereference_function_descriptor() */
31
32/* Works only for digits and letters, but small and fast */
33#define TOLOWER(x) ((x) | 0x20)
34
1/*
2 * linux/lib/vsprintf.c
3 *
4 * Copyright (C) 1991, 1992 Linus Torvalds
5 */
6
7/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
8/*

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27
28#include <asm/page.h> /* for PAGE_SIZE */
29#include <asm/div64.h>
30#include <asm/sections.h> /* for dereference_function_descriptor() */
31
32/* Works only for digits and letters, but small and fast */
33#define TOLOWER(x) ((x) | 0x20)
34
35static unsigned int simple_guess_base(const char *cp)
36{
37 if (cp[0] == '0') {
38 if (TOLOWER(cp[1]) == 'x' && isxdigit(cp[2]))
39 return 16;
40 else
41 return 8;
42 } else {
43 return 10;
44 }
45}
46
35/**
36 * simple_strtoul - convert a string to an unsigned long
37 * @cp: The start of the string
38 * @endp: A pointer to the end of the parsed string will be placed here
39 * @base: The number base to use
40 */
41unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
42{
47/**
48 * simple_strtoul - convert a string to an unsigned long
49 * @cp: The start of the string
50 * @endp: A pointer to the end of the parsed string will be placed here
51 * @base: The number base to use
52 */
53unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
54{
43 unsigned long result = 0,value;
55 unsigned long result = 0;
44
56
45 if (!base) {
46 base = 10;
47 if (*cp == '0') {
48 base = 8;
49 cp++;
50 if ((TOLOWER(*cp) == 'x') && isxdigit(cp[1])) {
51 cp++;
52 base = 16;
53 }
54 }
55 } else if (base == 16) {
56 if (cp[0] == '0' && TOLOWER(cp[1]) == 'x')
57 cp += 2;
58 }
59 while (isxdigit(*cp) &&
60 (value = isdigit(*cp) ? *cp-'0' : TOLOWER(*cp)-'a'+10) < base) {
61 result = result*base + value;
57 if (!base)
58 base = simple_guess_base(cp);
59
60 if (base == 16 && cp[0] == '0' && TOLOWER(cp[1]) == 'x')
61 cp += 2;
62
63 while (isxdigit(*cp)) {
64 unsigned int value;
65
66 value = isdigit(*cp) ? *cp - '0' : TOLOWER(*cp) - 'a' + 10;
67 if (value >= base)
68 break;
69 result = result * base + value;
62 cp++;
63 }
70 cp++;
71 }
72
64 if (endp)
65 *endp = (char *)cp;
66 return result;
67}
73 if (endp)
74 *endp = (char *)cp;
75 return result;
76}
68
69EXPORT_SYMBOL(simple_strtoul);
70
71/**
72 * simple_strtol - convert a string to a signed long
73 * @cp: The start of the string
74 * @endp: A pointer to the end of the parsed string will be placed here
75 * @base: The number base to use
76 */

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86/**
87 * simple_strtoull - convert a string to an unsigned long long
88 * @cp: The start of the string
89 * @endp: A pointer to the end of the parsed string will be placed here
90 * @base: The number base to use
91 */
92unsigned long long simple_strtoull(const char *cp,char **endp,unsigned int base)
93{
77EXPORT_SYMBOL(simple_strtoul);
78
79/**
80 * simple_strtol - convert a string to a signed long
81 * @cp: The start of the string
82 * @endp: A pointer to the end of the parsed string will be placed here
83 * @base: The number base to use
84 */

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94/**
95 * simple_strtoull - convert a string to an unsigned long long
96 * @cp: The start of the string
97 * @endp: A pointer to the end of the parsed string will be placed here
98 * @base: The number base to use
99 */
100unsigned long long simple_strtoull(const char *cp,char **endp,unsigned int base)
101{
94 unsigned long long result = 0,value;
102 unsigned long long result = 0;
95
103
96 if (!base) {
97 base = 10;
98 if (*cp == '0') {
99 base = 8;
100 cp++;
101 if ((TOLOWER(*cp) == 'x') && isxdigit(cp[1])) {
102 cp++;
103 base = 16;
104 }
105 }
106 } else if (base == 16) {
107 if (cp[0] == '0' && TOLOWER(cp[1]) == 'x')
108 cp += 2;
109 }
110 while (isxdigit(*cp)
111 && (value = isdigit(*cp) ? *cp-'0' : TOLOWER(*cp)-'a'+10) < base) {
112 result = result*base + value;
104 if (!base)
105 base = simple_guess_base(cp);
106
107 if (base == 16 && cp[0] == '0' && TOLOWER(cp[1]) == 'x')
108 cp += 2;
109
110 while (isxdigit(*cp)) {
111 unsigned int value;
112
113 value = isdigit(*cp) ? *cp - '0' : TOLOWER(*cp) - 'a' + 10;
114 if (value >= base)
115 break;
116 result = result * base + value;
113 cp++;
114 }
117 cp++;
118 }
119
115 if (endp)
116 *endp = (char *)cp;
117 return result;
118}
120 if (endp)
121 *endp = (char *)cp;
122 return result;
123}
119
120EXPORT_SYMBOL(simple_strtoull);
121
122/**
123 * simple_strtoll - convert a string to a signed long long
124 * @cp: The start of the string
125 * @endp: A pointer to the end of the parsed string will be placed here
126 * @base: The number base to use
127 */

--- 1042 unchanged lines hidden --- 		124EXPORT_SYMBOL(simple_strtoull);
125
126/**
127 * simple_strtoll - convert a string to a signed long long
128 * @cp: The start of the string
129 * @endp: A pointer to the end of the parsed string will be placed here
130 * @base: The number base to use
131 */

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