ReactOS 0.4.15-dev-7931-gfd331f1
itoa.c
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1/* taken from wine ntdll and msvcrt string.c */
2
3#include <precomp.h>
4
5/*
6 * @implemented
7 */
8char *
9CDECL
10_i64toa(__int64 value, char *string, int radix)
11{
12 ULONGLONG val;
13 int negative;
14 char buffer[65];
15 char *pos;
16 int digit;
17
18 if (value < 0 && radix == 10) {
19 negative = 1;
20 val = -value;
21 } else {
22 negative = 0;
23 val = value;
24 } /* if */
25
26 pos = &buffer[64];
27 *pos = '\0';
28
29 do {
30 digit = val % radix;
31 val = val / radix;
32 if (digit < 10) {
33 *--pos = '0' + digit;
34 } else {
35 *--pos = 'a' + digit - 10;
36 } /* if */
37 } while (val != 0L);
38
39 if (negative) {
40 *--pos = '-';
41 } /* if */
42
43 memcpy(string, pos, &buffer[64] - pos + 1);
44 return string;
45}
46
47/*
48 * @implemented
49 */
50int CDECL _i64toa_s(__int64 value, char *str, size_t size, int radix)
51{
52 unsigned __int64 val;
53 unsigned int digit;
54 int is_negative;
55 char buffer[65], *pos;
56 size_t len;
57
58 if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
59 !MSVCRT_CHECK_PMT(radix >= 2) || !MSVCRT_CHECK_PMT(radix <= 36))
60 {
61 if (str && size)
62 str[0] = '\0';
63#ifndef _LIBCNT_
64 *_errno() = EINVAL;
65#endif
66 return EINVAL;
67 }
68
69 if (value < 0 && radix == 10)
70 {
71 is_negative = 1;
72 val = -value;
73 }
74 else
75 {
76 is_negative = 0;
77 val = value;
78 }
79
80 pos = buffer + 64;
81 *pos = '\0';
82
83 do
84 {
85 digit = val % radix;
86 val /= radix;
87
88 if (digit < 10)
89 *--pos = '0' + digit;
90 else
91 *--pos = 'a' + digit - 10;
92 }
93 while (val != 0);
94
95 if (is_negative)
96 *--pos = '-';
97
98 len = buffer + 65 - pos;
99 if (len > size)
100 {
101 size_t i;
102 char *p = str;
103
104 /* Copy the temporary buffer backwards up to the available number of
105 * characters. Don't copy the negative sign if present. */
106
107 if (is_negative)
108 {
109 p++;
110 size--;
111 }
112
113 for (pos = buffer + 63, i = 0; i < size; i++)
114 *p++ = *pos--;
115
116 str[0] = '\0';
117 MSVCRT_INVALID_PMT("str[size] is too small", ERANGE);
118 return ERANGE;
119 }
120
121 memcpy(str, pos, len);
122 return 0;
123}
124
125/*
126 * @implemented
127 */
128char *
129CDECL
130_ui64toa(unsigned __int64 value, char *string, int radix)
131{
132 char buffer[65];
133 char *pos;
134 int digit;
135
136 pos = &buffer[64];
137 *pos = '\0';
138
139 do {
140 digit = value % radix;
141 value = value / radix;
142 if (digit < 10) {
143 *--pos = '0' + digit;
144 } else {
145 *--pos = 'a' + digit - 10;
146 } /* if */
147 } while (value != 0L);
148
149 memcpy(string, pos, &buffer[64] - pos + 1);
150 return string;
151}
152
153/*
154 * @implemented
155 */
156int CDECL _ui64toa_s(unsigned __int64 value, char *str,
157 size_t size, int radix)
158{
159 char buffer[65], *pos;
160 int digit;
161
162 if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
163 !MSVCRT_CHECK_PMT(radix>=2) || !MSVCRT_CHECK_PMT(radix<=36)) {
164#ifndef _LIBCNT_
165 *_errno() = EINVAL;
166#endif
167 return EINVAL;
168 }
169
170 pos = buffer+64;
171 *pos = '\0';
172
173 do {
174 digit = value%radix;
175 value /= radix;
176
177 if(digit < 10)
178 *--pos = '0'+digit;
179 else
180 *--pos = 'a'+digit-10;
181 }while(value != 0);
182
183 if((unsigned)(buffer-pos+65) > size) {
184 MSVCRT_INVALID_PMT("str[size] is too small", EINVAL);
185 return EINVAL;
186 }
187
188 memcpy(str, pos, buffer-pos+65);
189 return 0;
190}
191
192/*
193 * @implemented
194 */
195int CDECL _itoa_s(int value, char *str, size_t size, int radix)
196{
197 return _ltoa_s(value, str, size, radix);
198}
199
200/*
201 * @implemented
202 */
203char *
204CDECL
205_itoa(int value, char *string, int radix)
206{
207 return _ltoa(value, string, radix);
208}
209
210/*
211 * @implemented
212 */
213char *
214CDECL
215_ltoa(long value, char *string, int radix)
216{
217 unsigned long val;
218 int negative;
219 char buffer[33];
220 char *pos;
221 int digit;
222
223 if (value < 0 && radix == 10) {
224 negative = 1;
225 val = -value;
226 } else {
227 negative = 0;
228 val = value;
229 } /* if */
230
231 pos = &buffer[32];
232 *pos = '\0';
233
234 do {
235 digit = val % radix;
236 val = val / radix;
237 if (digit < 10) {
238 *--pos = '0' + digit;
239 } else {
240 *--pos = 'a' + digit - 10;
241 } /* if */
242 } while (val != 0L);
243
244 if (negative) {
245 *--pos = '-';
246 } /* if */
247
248 memcpy(string, pos, &buffer[32] - pos + 1);
249 return string;
250}
251
252/*
253 * @implemented
254 */
255int CDECL _ltoa_s(long value, char *str, size_t size, int radix)
256{
257 unsigned long val;
258 unsigned int digit;
259 int is_negative;
260 char buffer[33], *pos;
261 size_t len;
262
263 if (!MSVCRT_CHECK_PMT(str != NULL) || !MSVCRT_CHECK_PMT(size > 0) ||
264 !MSVCRT_CHECK_PMT(radix >= 2) || !MSVCRT_CHECK_PMT(radix <= 36))
265 {
266 if (str && size)
267 str[0] = '\0';
268
269#ifndef _LIBCNT_
270 *_errno() = EINVAL;
271#endif
272 return EINVAL;
273 }
274
275 if (value < 0 && radix == 10)
276 {
277 is_negative = 1;
278 val = -value;
279 }
280 else
281 {
282 is_negative = 0;
283 val = value;
284 }
285
286 pos = buffer + 32;
287 *pos = '\0';
288
289 do
290 {
291 digit = val % radix;
292 val /= radix;
293
294 if (digit < 10)
295 *--pos = '0' + digit;
296 else
297 *--pos = 'a' + digit - 10;
298 }
299 while (val != 0);
300
301 if (is_negative)
302 *--pos = '-';
303
304 len = buffer + 33 - pos;
305 if (len > size)
306 {
307 size_t i;
308 char *p = str;
309
310 /* Copy the temporary buffer backwards up to the available number of
311 * characters. Don't copy the negative sign if present. */
312
313 if (is_negative)
314 {
315 p++;
316 size--;
317 }
318
319 for (pos = buffer + 31, i = 0; i < size; i++)
320 *p++ = *pos--;
321
322 str[0] = '\0';
323 MSVCRT_INVALID_PMT("str[size] is too small", ERANGE);
324 return ERANGE;
325 }
326
327 memcpy(str, pos, len);
328 return 0;
329}
330
331/*
332 * @implemented
333 */
334char *
335CDECL
336_ultoa(unsigned long value, char *string, int radix)
337{
338 char buffer[33];
339 char *pos;
340 int digit;
341
342 pos = &buffer[32];
343 *pos = '\0';
344
345 do {
346 digit = value % radix;
347 value = value / radix;
348 if (digit < 10) {
349 *--pos = '0' + digit;
350 } else {
351 *--pos = 'a' + digit - 10;
352 } /* if */
353 } while (value != 0L);
354
355 memcpy(string, pos, &buffer[32] - pos + 1);
356
357 return string;
358}
EINVAL
#define EINVAL
Definition: acclib.h:90
ERANGE
#define ERANGE
Definition: acclib.h:92
__int64
#define __int64
Definition: basetyps.h:16
NULL
#define NULL
Definition: types.h:112
CDECL
#define CDECL
Definition: compat.h:29
size
GLsizeiptr size
Definition: glext.h:5919
buffer
GLuint buffer
Definition: glext.h:5915
val
GLuint GLfloat * val
Definition: glext.h:7180
p
GLfloat GLfloat p
Definition: glext.h:8902
len
GLenum GLsizei len
Definition: glext.h:6722
i
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
_itoa
char *CDECL _itoa(int value, char *string, int radix)
Definition: itoa.c:205
_ltoa
char *CDECL _ltoa(long value, char *string, int radix)
Definition: itoa.c:215
_ui64toa
char *CDECL _ui64toa(unsigned __int64 value, char *string, int radix)
Definition: itoa.c:130
_i64toa
char *CDECL _i64toa(__int64 value, char *string, int radix)
Definition: itoa.c:10
_ui64toa_s
int CDECL _ui64toa_s(unsigned __int64 value, char *str, size_t size, int radix)
Definition: itoa.c:156
_ultoa
char *CDECL _ultoa(unsigned long value, char *string, int radix)
Definition: itoa.c:336
_itoa_s
int CDECL _itoa_s(int value, char *str, size_t size, int radix)
Definition: itoa.c:195
_ltoa_s
int CDECL _ltoa_s(long value, char *str, size_t size, int radix)
Definition: itoa.c:255
_i64toa_s
int CDECL _i64toa_s(__int64 value, char *str, size_t size, int radix)
Definition: itoa.c:50
memcpy
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
string
char string[160]
Definition: util.h:11
MSVCRT_INVALID_PMT
#define MSVCRT_INVALID_PMT(x)
Definition: mbstowcs_s.c:25
MSVCRT_CHECK_PMT
#define MSVCRT_CHECK_PMT(x)
Definition: mbstowcs_s.c:26
L
#define L(x)
Definition: ntvdm.h:50
str
const WCHAR * str
Definition: rpc_transport.c:2724
_errno
_CRTIMP int *__cdecl _errno(void)
Definition: errno.c:19
ULONGLONG
uint64_t ULONGLONG
Definition: typedefs.h:67
value
Definition: pdh_main.c:94