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f7a9f785 | 1 | /* Copyright (C) 1991-2016 Free Software Foundation, Inc. |
ba1ffaa1 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
ba1ffaa1 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 8 | |
ba1ffaa1 UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 RM |
17 | |
18 | /* | |
d1646309 | 19 | * ISO C99 Standard: 7.20 General utilities <stdlib.h> |
28f540f4 RM |
20 | */ |
21 | ||
22 | #ifndef _STDLIB_H | |
5107cf1d | 23 | |
28f540f4 RM |
24 | #include <features.h> |
25 | ||
26 | /* Get size_t, wchar_t and NULL from <stddef.h>. */ | |
7ef90c15 UD |
27 | #define __need_size_t |
28 | #ifndef __need_malloc_and_calloc | |
29 | # define __need_wchar_t | |
30 | # define __need_NULL | |
31 | #endif | |
28f540f4 RM |
32 | #include <stddef.h> |
33 | ||
50497a16 UD |
34 | __BEGIN_DECLS |
35 | ||
36 | #ifndef __need_malloc_and_calloc | |
37 | #define _STDLIB_H 1 | |
38 | ||
f095bb72 | 39 | #if (defined __USE_XOPEN || defined __USE_XOPEN2K8) && !defined _SYS_WAIT_H |
9323b58f UD |
40 | /* XPG requires a few symbols from <sys/wait.h> being defined. */ |
41 | # include <bits/waitflags.h> | |
42 | # include <bits/waitstatus.h> | |
43 | ||
9323b58f | 44 | /* Define the macros <sys/wait.h> also would define this way. */ |
b49ab5f4 FW |
45 | # define WEXITSTATUS(status) __WEXITSTATUS (status) |
46 | # define WTERMSIG(status) __WTERMSIG (status) | |
47 | # define WSTOPSIG(status) __WSTOPSIG (status) | |
48 | # define WIFEXITED(status) __WIFEXITED (status) | |
49 | # define WIFSIGNALED(status) __WIFSIGNALED (status) | |
50 | # define WIFSTOPPED(status) __WIFSTOPPED (status) | |
a044c713 | 51 | # ifdef __WIFCONTINUED |
b49ab5f4 | 52 | # define WIFCONTINUED(status) __WIFCONTINUED (status) |
a044c713 | 53 | # endif |
f095bb72 | 54 | #endif /* X/Open or XPG7 and <sys/wait.h> not included. */ |
9323b58f | 55 | |
7a5affeb | 56 | __BEGIN_NAMESPACE_STD |
28f540f4 RM |
57 | /* Returned by `div'. */ |
58 | typedef struct | |
59 | { | |
60 | int quot; /* Quotient. */ | |
61 | int rem; /* Remainder. */ | |
62 | } div_t; | |
63 | ||
64 | /* Returned by `ldiv'. */ | |
e518937a | 65 | #ifndef __ldiv_t_defined |
28f540f4 RM |
66 | typedef struct |
67 | { | |
68 | long int quot; /* Quotient. */ | |
69 | long int rem; /* Remainder. */ | |
70 | } ldiv_t; | |
e518937a UD |
71 | # define __ldiv_t_defined 1 |
72 | #endif | |
7a5affeb | 73 | __END_NAMESPACE_STD |
28f540f4 | 74 | |
ec751a23 | 75 | #if defined __USE_ISOC99 && !defined __lldiv_t_defined |
7a5affeb | 76 | __BEGIN_NAMESPACE_C99 |
59dd8641 | 77 | /* Returned by `lldiv'. */ |
7782d0bf | 78 | __extension__ typedef struct |
59dd8641 RM |
79 | { |
80 | long long int quot; /* Quotient. */ | |
81 | long long int rem; /* Remainder. */ | |
82 | } lldiv_t; | |
e518937a | 83 | # define __lldiv_t_defined 1 |
7a5affeb | 84 | __END_NAMESPACE_C99 |
59dd8641 RM |
85 | #endif |
86 | ||
28f540f4 RM |
87 | |
88 | /* The largest number rand will return (same as INT_MAX). */ | |
89 | #define RAND_MAX 2147483647 | |
90 | ||
91 | ||
92 | /* We define these the same for all machines. | |
93 | Changes from this to the outside world should be done in `_exit'. */ | |
94 | #define EXIT_FAILURE 1 /* Failing exit status. */ | |
95 | #define EXIT_SUCCESS 0 /* Successful exit status. */ | |
96 | ||
97 | ||
0200214b RM |
98 | /* Maximum length of a multibyte character in the current locale. */ |
99 | #define MB_CUR_MAX (__ctype_get_mb_cur_max ()) | |
0476597b | 100 | extern size_t __ctype_get_mb_cur_max (void) __THROW __wur; |
28f540f4 RM |
101 | |
102 | ||
7a5affeb | 103 | __BEGIN_NAMESPACE_STD |
28f540f4 | 104 | /* Convert a string to a floating-point number. */ |
a784e502 | 105 | extern double atof (const char *__nptr) |
0476597b | 106 | __THROW __attribute_pure__ __nonnull ((1)) __wur; |
28f540f4 | 107 | /* Convert a string to an integer. */ |
a784e502 | 108 | extern int atoi (const char *__nptr) |
0476597b | 109 | __THROW __attribute_pure__ __nonnull ((1)) __wur; |
28f540f4 | 110 | /* Convert a string to a long integer. */ |
a784e502 | 111 | extern long int atol (const char *__nptr) |
0476597b | 112 | __THROW __attribute_pure__ __nonnull ((1)) __wur; |
7a5affeb | 113 | __END_NAMESPACE_STD |
28f540f4 | 114 | |
acd7f096 | 115 | #ifdef __USE_ISOC99 |
7a5affeb | 116 | __BEGIN_NAMESPACE_C99 |
fb4dfa0c | 117 | /* Convert a string to a long long integer. */ |
a784e502 | 118 | __extension__ extern long long int atoll (const char *__nptr) |
0476597b | 119 | __THROW __attribute_pure__ __nonnull ((1)) __wur; |
7a5affeb | 120 | __END_NAMESPACE_C99 |
7cc27f44 UD |
121 | #endif |
122 | ||
7a5affeb | 123 | __BEGIN_NAMESPACE_STD |
28f540f4 | 124 | /* Convert a string to a floating-point number. */ |
a784e502 | 125 | extern double strtod (const char *__restrict __nptr, |
0476597b | 126 | char **__restrict __endptr) |
c0baea34 | 127 | __THROW __nonnull ((1)); |
7a5affeb | 128 | __END_NAMESPACE_STD |
28f540f4 | 129 | |
ec751a23 | 130 | #ifdef __USE_ISOC99 |
7a5affeb | 131 | __BEGIN_NAMESPACE_C99 |
28f540f4 | 132 | /* Likewise for `float' and `long double' sizes of floating-point numbers. */ |
a784e502 | 133 | extern float strtof (const char *__restrict __nptr, |
c0baea34 | 134 | char **__restrict __endptr) __THROW __nonnull ((1)); |
2f6d1f1b | 135 | |
a784e502 | 136 | extern long double strtold (const char *__restrict __nptr, |
be27d08c | 137 | char **__restrict __endptr) |
c0baea34 | 138 | __THROW __nonnull ((1)); |
7a5affeb | 139 | __END_NAMESPACE_C99 |
28f540f4 RM |
140 | #endif |
141 | ||
7a5affeb | 142 | __BEGIN_NAMESPACE_STD |
28f540f4 | 143 | /* Convert a string to a long integer. */ |
a784e502 | 144 | extern long int strtol (const char *__restrict __nptr, |
be27d08c | 145 | char **__restrict __endptr, int __base) |
c0baea34 | 146 | __THROW __nonnull ((1)); |
28f540f4 | 147 | /* Convert a string to an unsigned long integer. */ |
a784e502 | 148 | extern unsigned long int strtoul (const char *__restrict __nptr, |
c1422e5b | 149 | char **__restrict __endptr, int __base) |
c0baea34 | 150 | __THROW __nonnull ((1)); |
4708f2b1 | 151 | __END_NAMESPACE_STD |
28f540f4 | 152 | |
498afc54 | 153 | #ifdef __USE_MISC |
28f540f4 | 154 | /* Convert a string to a quadword integer. */ |
7782d0bf | 155 | __extension__ |
a784e502 | 156 | extern long long int strtoq (const char *__restrict __nptr, |
be27d08c | 157 | char **__restrict __endptr, int __base) |
c0baea34 | 158 | __THROW __nonnull ((1)); |
28f540f4 | 159 | /* Convert a string to an unsigned quadword integer. */ |
7782d0bf | 160 | __extension__ |
a784e502 | 161 | extern unsigned long long int strtouq (const char *__restrict __nptr, |
c1422e5b | 162 | char **__restrict __endptr, int __base) |
c0baea34 | 163 | __THROW __nonnull ((1)); |
acd7f096 | 164 | #endif /* Use misc. */ |
28f540f4 | 165 | |
acd7f096 | 166 | #ifdef __USE_ISOC99 |
7a5affeb | 167 | __BEGIN_NAMESPACE_C99 |
76060ec0 | 168 | /* Convert a string to a quadword integer. */ |
7782d0bf | 169 | __extension__ |
a784e502 | 170 | extern long long int strtoll (const char *__restrict __nptr, |
be27d08c | 171 | char **__restrict __endptr, int __base) |
c0baea34 | 172 | __THROW __nonnull ((1)); |
76060ec0 | 173 | /* Convert a string to an unsigned quadword integer. */ |
7782d0bf | 174 | __extension__ |
a784e502 | 175 | extern unsigned long long int strtoull (const char *__restrict __nptr, |
c1422e5b | 176 | char **__restrict __endptr, int __base) |
c0baea34 | 177 | __THROW __nonnull ((1)); |
7a5affeb | 178 | __END_NAMESPACE_C99 |
6a57d931 | 179 | #endif /* ISO C99 or use MISC. */ |
76060ec0 RM |
180 | |
181 | ||
0501d603 UD |
182 | #ifdef __USE_GNU |
183 | /* The concept of one static locale per category is not very well | |
184 | thought out. Many applications will need to process its data using | |
8f0d3f49 | 185 | information from several different locales. Another problem is |
0501d603 | 186 | the implementation of the internationalization handling in the |
8f0d3f49 UD |
187 | ISO C++ standard library. To support this another set of |
188 | the functions using locale data exist which take an additional | |
0501d603 UD |
189 | argument. |
190 | ||
8f0d3f49 UD |
191 | Attention: even though several *_l interfaces are part of POSIX:2008, |
192 | these are not. */ | |
0501d603 UD |
193 | |
194 | /* Structure for reentrant locale using functions. This is an | |
195 | (almost) opaque type for the user level programs. */ | |
196 | # include <xlocale.h> | |
197 | ||
198 | /* Special versions of the functions above which take the locale to | |
199 | use as an additional parameter. */ | |
a784e502 | 200 | extern long int strtol_l (const char *__restrict __nptr, |
1ab62b32 | 201 | char **__restrict __endptr, int __base, |
c0baea34 | 202 | __locale_t __loc) __THROW __nonnull ((1, 4)); |
0501d603 | 203 | |
a784e502 | 204 | extern unsigned long int strtoul_l (const char *__restrict __nptr, |
1ab62b32 | 205 | char **__restrict __endptr, |
be27d08c | 206 | int __base, __locale_t __loc) |
c0baea34 | 207 | __THROW __nonnull ((1, 4)); |
0501d603 | 208 | |
7782d0bf | 209 | __extension__ |
a784e502 | 210 | extern long long int strtoll_l (const char *__restrict __nptr, |
1ab62b32 | 211 | char **__restrict __endptr, int __base, |
be27d08c | 212 | __locale_t __loc) |
c0baea34 | 213 | __THROW __nonnull ((1, 4)); |
0501d603 | 214 | |
7782d0bf | 215 | __extension__ |
a784e502 | 216 | extern unsigned long long int strtoull_l (const char *__restrict __nptr, |
1ab62b32 RM |
217 | char **__restrict __endptr, |
218 | int __base, __locale_t __loc) | |
c0baea34 | 219 | __THROW __nonnull ((1, 4)); |
0501d603 | 220 | |
a784e502 | 221 | extern double strtod_l (const char *__restrict __nptr, |
1ab62b32 | 222 | char **__restrict __endptr, __locale_t __loc) |
c0baea34 | 223 | __THROW __nonnull ((1, 3)); |
0501d603 | 224 | |
a784e502 | 225 | extern float strtof_l (const char *__restrict __nptr, |
be27d08c | 226 | char **__restrict __endptr, __locale_t __loc) |
c0baea34 | 227 | __THROW __nonnull ((1, 3)); |
0501d603 | 228 | |
a784e502 | 229 | extern long double strtold_l (const char *__restrict __nptr, |
1ab62b32 | 230 | char **__restrict __endptr, |
0476597b | 231 | __locale_t __loc) |
c0baea34 | 232 | __THROW __nonnull ((1, 3)); |
0501d603 UD |
233 | #endif /* GNU */ |
234 | ||
f0bf9cb9 | 235 | |
07c416ed | 236 | #ifdef __USE_EXTERN_INLINES |
7a5affeb | 237 | __BEGIN_NAMESPACE_STD |
b037a293 | 238 | __extern_inline int |
a784e502 | 239 | __NTH (atoi (const char *__nptr)) |
2604afb1 UD |
240 | { |
241 | return (int) strtol (__nptr, (char **) NULL, 10); | |
242 | } | |
b037a293 | 243 | __extern_inline long int |
a784e502 | 244 | __NTH (atol (const char *__nptr)) |
2604afb1 UD |
245 | { |
246 | return strtol (__nptr, (char **) NULL, 10); | |
247 | } | |
7a5affeb | 248 | __END_NAMESPACE_STD |
2604afb1 | 249 | |
acd7f096 | 250 | # ifdef __USE_ISOC99 |
7a5affeb | 251 | __BEGIN_NAMESPACE_C99 |
b037a293 | 252 | __extension__ __extern_inline long long int |
a784e502 | 253 | __NTH (atoll (const char *__nptr)) |
2604afb1 UD |
254 | { |
255 | return strtoll (__nptr, (char **) NULL, 10); | |
256 | } | |
7a5affeb | 257 | __END_NAMESPACE_C99 |
2604afb1 | 258 | # endif |
0c6cee5d | 259 | #endif /* Optimizing and Inlining. */ |
28f540f4 RM |
260 | |
261 | ||
498afc54 | 262 | #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED |
bbed653c RM |
263 | /* Convert N to base 64 using the digits "./0-9A-Za-z", least-significant |
264 | digit first. Returns a pointer to static storage overwritten by the | |
265 | next call. */ | |
0476597b | 266 | extern char *l64a (long int __n) __THROW __wur; |
bbed653c | 267 | |
036cc82f | 268 | /* Read a number from a string S in base 64 as above. */ |
a784e502 | 269 | extern long int a64l (const char *__s) |
0476597b | 270 | __THROW __attribute_pure__ __nonnull ((1)) __wur; |
28f540f4 | 271 | |
acd7f096 | 272 | #endif /* Use misc || extended X/Open. */ |
b20e47cb | 273 | |
ed9a38e2 | 274 | #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED |
dfd2257a | 275 | # include <sys/types.h> /* we need int32_t... */ |
b20e47cb | 276 | |
28f540f4 RM |
277 | /* These are the functions that actually do things. The `random', `srandom', |
278 | `initstate' and `setstate' functions are those from BSD Unices. | |
279 | The `rand' and `srand' functions are required by the ANSI standard. | |
280 | We provide both interfaces to the same random number generator. */ | |
281 | /* Return a random long integer between 0 and RAND_MAX inclusive. */ | |
61f9d0a3 | 282 | extern long int random (void) __THROW; |
9ebb936d | 283 | |
28f540f4 | 284 | /* Seed the random number generator with the given number. */ |
c1422e5b | 285 | extern void srandom (unsigned int __seed) __THROW; |
28f540f4 RM |
286 | |
287 | /* Initialize the random number generator to use state buffer STATEBUF, | |
288 | of length STATELEN, and seed it with SEED. Optimal lengths are 8, 16, | |
289 | 32, 64, 128 and 256, the bigger the better; values less than 8 will | |
290 | cause an error and values greater than 256 will be rounded down. */ | |
9323b58f | 291 | extern char *initstate (unsigned int __seed, char *__statebuf, |
be27d08c | 292 | size_t __statelen) __THROW __nonnull ((2)); |
9ebb936d | 293 | |
28f540f4 RM |
294 | /* Switch the random number generator to state buffer STATEBUF, |
295 | which should have been previously initialized by `initstate'. */ | |
be27d08c | 296 | extern char *setstate (char *__statebuf) __THROW __nonnull ((1)); |
28f540f4 | 297 | |
60478656 | 298 | |
2604afb1 | 299 | # ifdef __USE_MISC |
60478656 RM |
300 | /* Reentrant versions of the `random' family of functions. |
301 | These functions all use the following data structure to contain | |
302 | state, rather than global state variables. */ | |
303 | ||
304 | struct random_data | |
305 | { | |
b20e47cb RM |
306 | int32_t *fptr; /* Front pointer. */ |
307 | int32_t *rptr; /* Rear pointer. */ | |
308 | int32_t *state; /* Array of state values. */ | |
60478656 RM |
309 | int rand_type; /* Type of random number generator. */ |
310 | int rand_deg; /* Degree of random number generator. */ | |
311 | int rand_sep; /* Distance between front and rear. */ | |
b20e47cb | 312 | int32_t *end_ptr; /* Pointer behind state table. */ |
60478656 RM |
313 | }; |
314 | ||
c1422e5b | 315 | extern int random_r (struct random_data *__restrict __buf, |
be27d08c | 316 | int32_t *__restrict __result) __THROW __nonnull ((1, 2)); |
8a523922 | 317 | |
be27d08c UD |
318 | extern int srandom_r (unsigned int __seed, struct random_data *__buf) |
319 | __THROW __nonnull ((2)); | |
8a523922 | 320 | |
9323b58f | 321 | extern int initstate_r (unsigned int __seed, char *__restrict __statebuf, |
c1422e5b | 322 | size_t __statelen, |
be27d08c UD |
323 | struct random_data *__restrict __buf) |
324 | __THROW __nonnull ((2, 4)); | |
8a523922 | 325 | |
9323b58f | 326 | extern int setstate_r (char *__restrict __statebuf, |
be27d08c UD |
327 | struct random_data *__restrict __buf) |
328 | __THROW __nonnull ((1, 2)); | |
2604afb1 | 329 | # endif /* Use misc. */ |
acd7f096 | 330 | #endif /* Use extended X/Open || misc. */ |
60478656 RM |
331 | |
332 | ||
7a5affeb | 333 | __BEGIN_NAMESPACE_STD |
2c6fe0bd | 334 | /* Return a random integer between 0 and RAND_MAX inclusive. */ |
c1422e5b | 335 | extern int rand (void) __THROW; |
2c6fe0bd | 336 | /* Seed the random number generator with the given number. */ |
c1422e5b | 337 | extern void srand (unsigned int __seed) __THROW; |
7a5affeb | 338 | __END_NAMESPACE_STD |
2c6fe0bd | 339 | |
b098852a | 340 | #ifdef __USE_POSIX199506 |
47707456 | 341 | /* Reentrant interface according to POSIX.1. */ |
c1422e5b | 342 | extern int rand_r (unsigned int *__seed) __THROW; |
47707456 UD |
343 | #endif |
344 | ||
2c6fe0bd | 345 | |
498afc54 | 346 | #if defined __USE_MISC || defined __USE_XOPEN |
60478656 RM |
347 | /* System V style 48-bit random number generator functions. */ |
348 | ||
2c6fe0bd | 349 | /* Return non-negative, double-precision floating-point value in [0.0,1.0). */ |
c1422e5b | 350 | extern double drand48 (void) __THROW; |
be27d08c | 351 | extern double erand48 (unsigned short int __xsubi[3]) __THROW __nonnull ((1)); |
2c6fe0bd UD |
352 | |
353 | /* Return non-negative, long integer in [0,2^31). */ | |
c1422e5b | 354 | extern long int lrand48 (void) __THROW; |
be27d08c UD |
355 | extern long int nrand48 (unsigned short int __xsubi[3]) |
356 | __THROW __nonnull ((1)); | |
2c6fe0bd UD |
357 | |
358 | /* Return signed, long integers in [-2^31,2^31). */ | |
c1422e5b | 359 | extern long int mrand48 (void) __THROW; |
be27d08c UD |
360 | extern long int jrand48 (unsigned short int __xsubi[3]) |
361 | __THROW __nonnull ((1)); | |
2c6fe0bd UD |
362 | |
363 | /* Seed random number generator. */ | |
c1422e5b | 364 | extern void srand48 (long int __seedval) __THROW; |
be27d08c UD |
365 | extern unsigned short int *seed48 (unsigned short int __seed16v[3]) |
366 | __THROW __nonnull ((1)); | |
367 | extern void lcong48 (unsigned short int __param[7]) __THROW __nonnull ((1)); | |
2c6fe0bd | 368 | |
d17c01f9 UD |
369 | # ifdef __USE_MISC |
370 | /* Data structure for communication with thread safe versions. This | |
371 | type is to be regarded as opaque. It's only exported because users | |
372 | have to allocate objects of this type. */ | |
60478656 RM |
373 | struct drand48_data |
374 | { | |
d17c01f9 UD |
375 | unsigned short int __x[3]; /* Current state. */ |
376 | unsigned short int __old_x[3]; /* Old state. */ | |
377 | unsigned short int __c; /* Additive const. in congruential formula. */ | |
378 | unsigned short int __init; /* Flag for initializing. */ | |
828beb13 JM |
379 | __extension__ unsigned long long int __a; /* Factor in congruential |
380 | formula. */ | |
60478656 RM |
381 | }; |
382 | ||
383 | /* Return non-negative, double-precision floating-point value in [0.0,1.0). */ | |
c1422e5b | 384 | extern int drand48_r (struct drand48_data *__restrict __buffer, |
be27d08c | 385 | double *__restrict __result) __THROW __nonnull ((1, 2)); |
c1422e5b UD |
386 | extern int erand48_r (unsigned short int __xsubi[3], |
387 | struct drand48_data *__restrict __buffer, | |
be27d08c | 388 | double *__restrict __result) __THROW __nonnull ((1, 2)); |
2c6fe0bd | 389 | |
60478656 | 390 | /* Return non-negative, long integer in [0,2^31). */ |
c1422e5b | 391 | extern int lrand48_r (struct drand48_data *__restrict __buffer, |
be27d08c UD |
392 | long int *__restrict __result) |
393 | __THROW __nonnull ((1, 2)); | |
c1422e5b UD |
394 | extern int nrand48_r (unsigned short int __xsubi[3], |
395 | struct drand48_data *__restrict __buffer, | |
be27d08c UD |
396 | long int *__restrict __result) |
397 | __THROW __nonnull ((1, 2)); | |
2c6fe0bd | 398 | |
60478656 | 399 | /* Return signed, long integers in [-2^31,2^31). */ |
c1422e5b | 400 | extern int mrand48_r (struct drand48_data *__restrict __buffer, |
be27d08c UD |
401 | long int *__restrict __result) |
402 | __THROW __nonnull ((1, 2)); | |
c1422e5b UD |
403 | extern int jrand48_r (unsigned short int __xsubi[3], |
404 | struct drand48_data *__restrict __buffer, | |
be27d08c UD |
405 | long int *__restrict __result) |
406 | __THROW __nonnull ((1, 2)); | |
2c6fe0bd | 407 | |
60478656 | 408 | /* Seed random number generator. */ |
c1422e5b | 409 | extern int srand48_r (long int __seedval, struct drand48_data *__buffer) |
be27d08c | 410 | __THROW __nonnull ((2)); |
47f13fd4 | 411 | |
c1422e5b | 412 | extern int seed48_r (unsigned short int __seed16v[3], |
be27d08c | 413 | struct drand48_data *__buffer) __THROW __nonnull ((1, 2)); |
47f13fd4 | 414 | |
c1422e5b | 415 | extern int lcong48_r (unsigned short int __param[7], |
be27d08c UD |
416 | struct drand48_data *__buffer) |
417 | __THROW __nonnull ((1, 2)); | |
dfd2257a | 418 | # endif /* Use misc. */ |
acd7f096 | 419 | #endif /* Use misc or X/Open. */ |
28f540f4 | 420 | |
7ef90c15 | 421 | #endif /* don't just need malloc and calloc */ |
28f540f4 | 422 | |
7ef90c15 | 423 | #ifndef __malloc_and_calloc_defined |
7a5affeb UD |
424 | # define __malloc_and_calloc_defined |
425 | __BEGIN_NAMESPACE_STD | |
28f540f4 | 426 | /* Allocate SIZE bytes of memory. */ |
0476597b | 427 | extern void *malloc (size_t __size) __THROW __attribute_malloc__ __wur; |
7ef90c15 | 428 | /* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */ |
e9e9b245 | 429 | extern void *calloc (size_t __nmemb, size_t __size) |
0476597b | 430 | __THROW __attribute_malloc__ __wur; |
7a5affeb | 431 | __END_NAMESPACE_STD |
7ef90c15 UD |
432 | #endif |
433 | ||
434 | #ifndef __need_malloc_and_calloc | |
7a5affeb | 435 | __BEGIN_NAMESPACE_STD |
28f540f4 | 436 | /* Re-allocate the previously allocated block |
c1422e5b | 437 | in PTR, making the new block SIZE bytes long. */ |
1c3e748e UD |
438 | /* __attribute_malloc__ is not used, because if realloc returns |
439 | the same pointer that was passed to it, aliasing needs to be allowed | |
440 | between objects pointed by the old and new pointers. */ | |
0476597b | 441 | extern void *realloc (void *__ptr, size_t __size) |
1c3e748e | 442 | __THROW __attribute_warn_unused_result__; |
28f540f4 | 443 | /* Free a block allocated by `malloc', `realloc' or `calloc'. */ |
c1422e5b | 444 | extern void free (void *__ptr) __THROW; |
7a5affeb | 445 | __END_NAMESPACE_STD |
28f540f4 RM |
446 | |
447 | #ifdef __USE_MISC | |
448 | /* Free a block. An alias for `free'. (Sun Unices). */ | |
c1422e5b | 449 | extern void cfree (void *__ptr) __THROW; |
28f540f4 RM |
450 | #endif /* Use misc. */ |
451 | ||
acd7f096 | 452 | #ifdef __USE_MISC |
2604afb1 | 453 | # include <alloca.h> |
acd7f096 | 454 | #endif /* Use misc. */ |
28f540f4 | 455 | |
c589e093 | 456 | #if (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K) \ |
498afc54 | 457 | || defined __USE_MISC |
28f540f4 | 458 | /* Allocate SIZE bytes on a page boundary. The storage cannot be freed. */ |
0476597b | 459 | extern void *valloc (size_t __size) __THROW __attribute_malloc__ __wur; |
28f540f4 RM |
460 | #endif |
461 | ||
0758ea0c | 462 | #ifdef __USE_XOPEN2K |
c8c73ac3 | 463 | /* Allocate memory of SIZE bytes with an alignment of ALIGNMENT. */ |
61f9d0a3 | 464 | extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size) |
5bcbe69f | 465 | __THROW __nonnull ((1)) __wur; |
0758ea0c | 466 | #endif |
28f540f4 | 467 | |
380d7e87 UD |
468 | #ifdef __USE_ISOC11 |
469 | /* ISO C variant of aligned allocation. */ | |
8b43a4cc | 470 | extern void *aligned_alloc (size_t __alignment, size_t __size) |
4be9b544 | 471 | __THROW __attribute_malloc__ __attribute_alloc_size__ ((2)) __wur; |
380d7e87 UD |
472 | #endif |
473 | ||
7a5affeb | 474 | __BEGIN_NAMESPACE_STD |
28f540f4 | 475 | /* Abort execution and generate a core-dump. */ |
c1422e5b | 476 | extern void abort (void) __THROW __attribute__ ((__noreturn__)); |
28f540f4 RM |
477 | |
478 | ||
479 | /* Register a function to be called when `exit' is called. */ | |
be27d08c | 480 | extern int atexit (void (*__func) (void)) __THROW __nonnull ((1)); |
610e67ed | 481 | |
4e9e7a35 | 482 | #if defined __USE_ISOC11 || defined __USE_ISOCXX11 |
610e67ed UD |
483 | /* Register a function to be called when `quick_exit' is called. */ |
484 | # ifdef __cplusplus | |
485 | extern "C++" int at_quick_exit (void (*__func) (void)) | |
486 | __THROW __asm ("at_quick_exit") __nonnull ((1)); | |
487 | # else | |
488 | extern int at_quick_exit (void (*__func) (void)) __THROW __nonnull ((1)); | |
489 | # endif | |
490 | #endif | |
7a5affeb | 491 | __END_NAMESPACE_STD |
28f540f4 RM |
492 | |
493 | #ifdef __USE_MISC | |
494 | /* Register a function to be called with the status | |
495 | given to `exit' and the given argument. */ | |
c1422e5b | 496 | extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg) |
be27d08c | 497 | __THROW __nonnull ((1)); |
28f540f4 RM |
498 | #endif |
499 | ||
7a5affeb | 500 | __BEGIN_NAMESPACE_STD |
28f540f4 | 501 | /* Call all functions registered with `atexit' and `on_exit', |
610e67ed | 502 | in the reverse of the order in which they were registered, |
28f540f4 | 503 | perform stdio cleanup, and terminate program execution with STATUS. */ |
c1422e5b | 504 | extern void exit (int __status) __THROW __attribute__ ((__noreturn__)); |
610e67ed | 505 | |
4e9e7a35 | 506 | #if defined __USE_ISOC11 || defined __USE_ISOCXX11 |
610e67ed UD |
507 | /* Call all functions registered with `at_quick_exit' in the reverse |
508 | of the order in which they were registered and terminate program | |
509 | execution with STATUS. */ | |
510 | extern void quick_exit (int __status) __THROW __attribute__ ((__noreturn__)); | |
511 | #endif | |
7a5affeb | 512 | __END_NAMESPACE_STD |
28f540f4 | 513 | |
ec751a23 | 514 | #ifdef __USE_ISOC99 |
7a5affeb | 515 | __BEGIN_NAMESPACE_C99 |
e518937a UD |
516 | /* Terminate the program with STATUS without calling any of the |
517 | functions registered with `atexit' or `on_exit'. */ | |
c1422e5b | 518 | extern void _Exit (int __status) __THROW __attribute__ ((__noreturn__)); |
7a5affeb | 519 | __END_NAMESPACE_C99 |
e518937a UD |
520 | #endif |
521 | ||
28f540f4 | 522 | |
7a5affeb | 523 | __BEGIN_NAMESPACE_STD |
28f540f4 | 524 | /* Return the value of envariable NAME, or NULL if it doesn't exist. */ |
a784e502 | 525 | extern char *getenv (const char *__name) __THROW __nonnull ((1)) __wur; |
7a5affeb | 526 | __END_NAMESPACE_STD |
28f540f4 | 527 | |
84b3fd84 | 528 | #ifdef __USE_GNU |
d68171ed UD |
529 | /* This function is similar to the above but returns NULL if the |
530 | programs is running with SUID or SGID enabled. */ | |
84b3fd84 | 531 | extern char *secure_getenv (const char *__name) |
0476597b | 532 | __THROW __nonnull ((1)) __wur; |
84b3fd84 | 533 | #endif |
d68171ed | 534 | |
498afc54 | 535 | #if defined __USE_MISC || defined __USE_XOPEN |
28f540f4 RM |
536 | /* The SVID says this is in <stdio.h>, but this seems a better place. */ |
537 | /* Put STRING, which is of the form "NAME=VALUE", in the environment. | |
538 | If there is no `=', remove NAME from the environment. */ | |
be27d08c | 539 | extern int putenv (char *__string) __THROW __nonnull ((1)); |
28f540f4 RM |
540 | #endif |
541 | ||
acd7f096 | 542 | #ifdef __USE_XOPEN2K |
28f540f4 RM |
543 | /* Set NAME to VALUE in the environment. |
544 | If REPLACE is nonzero, overwrite an existing value. */ | |
a784e502 | 545 | extern int setenv (const char *__name, const char *__value, int __replace) |
90692538 | 546 | __THROW __nonnull ((2)); |
196980f5 RM |
547 | |
548 | /* Remove the variable NAME from the environment. */ | |
a784e502 | 549 | extern int unsetenv (const char *__name) __THROW __nonnull ((1)); |
28f540f4 RM |
550 | #endif |
551 | ||
f0e44959 UD |
552 | #ifdef __USE_MISC |
553 | /* The `clearenv' was planned to be added to POSIX.1 but probably | |
554 | never made it. Nevertheless the POSIX.9 standard (POSIX bindings | |
555 | for Fortran 77) requires this function. */ | |
c1422e5b | 556 | extern int clearenv (void) __THROW; |
f0e44959 UD |
557 | #endif |
558 | ||
2c6fe0bd | 559 | |
52e96a80 | 560 | #if defined __USE_MISC \ |
9bde902c | 561 | || (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8) |
2c6fe0bd UD |
562 | /* Generate a unique temporary file name from TEMPLATE. |
563 | The last six characters of TEMPLATE must be "XXXXXX"; | |
564 | they are replaced with a string that makes the file name unique. | |
349fa79f AJ |
565 | Always returns TEMPLATE, it's either a temporary file name or a null |
566 | string if it cannot get a unique file name. */ | |
567 | extern char *mktemp (char *__template) __THROW __nonnull ((1)); | |
f095bb72 | 568 | #endif |
2c6fe0bd | 569 | |
acd7f096 | 570 | #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 |
2c6fe0bd UD |
571 | /* Generate a unique temporary file name from TEMPLATE. |
572 | The last six characters of TEMPLATE must be "XXXXXX"; | |
573 | they are replaced with a string that makes the filename unique. | |
574 | Returns a file descriptor open on the file for reading and writing, | |
2c008571 UD |
575 | or -1 if it cannot create a uniquely-named file. |
576 | ||
7f3146e7 | 577 | This function is a possible cancellation point and therefore not |
2c008571 | 578 | marked with __THROW. */ |
85adf316 | 579 | # ifndef __USE_FILE_OFFSET64 |
0476597b | 580 | extern int mkstemp (char *__template) __nonnull ((1)) __wur; |
85adf316 UD |
581 | # else |
582 | # ifdef __REDIRECT | |
0476597b UD |
583 | extern int __REDIRECT (mkstemp, (char *__template), mkstemp64) |
584 | __nonnull ((1)) __wur; | |
85adf316 UD |
585 | # else |
586 | # define mkstemp mkstemp64 | |
587 | # endif | |
588 | # endif | |
589 | # ifdef __USE_LARGEFILE64 | |
0476597b | 590 | extern int mkstemp64 (char *__template) __nonnull ((1)) __wur; |
85adf316 | 591 | # endif |
2c6fe0bd UD |
592 | #endif |
593 | ||
7f3146e7 UD |
594 | #ifdef __USE_MISC |
595 | /* Similar to mkstemp, but the template can have a suffix after the | |
596 | XXXXXX. The length of the suffix is specified in the second | |
597 | parameter. | |
598 | ||
599 | This function is a possible cancellation point and therefore not | |
600 | marked with __THROW. */ | |
601 | # ifndef __USE_FILE_OFFSET64 | |
602 | extern int mkstemps (char *__template, int __suffixlen) __nonnull ((1)) __wur; | |
603 | # else | |
604 | # ifdef __REDIRECT | |
605 | extern int __REDIRECT (mkstemps, (char *__template, int __suffixlen), | |
606 | mkstemps64) __nonnull ((1)) __wur; | |
607 | # else | |
608 | # define mkstemps mkstemps64 | |
609 | # endif | |
610 | # endif | |
611 | # ifdef __USE_LARGEFILE64 | |
612 | extern int mkstemps64 (char *__template, int __suffixlen) | |
613 | __nonnull ((1)) __wur; | |
614 | # endif | |
615 | #endif | |
616 | ||
acd7f096 | 617 | #ifdef __USE_XOPEN2K8 |
2e65ca2b UD |
618 | /* Create a unique temporary directory from TEMPLATE. |
619 | The last six characters of TEMPLATE must be "XXXXXX"; | |
620 | they are replaced with a string that makes the directory name unique. | |
621 | Returns TEMPLATE, or a null pointer if it cannot get a unique name. | |
622 | The directory is created mode 700. */ | |
0476597b | 623 | extern char *mkdtemp (char *__template) __THROW __nonnull ((1)) __wur; |
2e65ca2b UD |
624 | #endif |
625 | ||
d7e23b02 UD |
626 | #ifdef __USE_GNU |
627 | /* Generate a unique temporary file name from TEMPLATE similar to | |
628 | mkstemp. But allow the caller to pass additional flags which are | |
629 | used in the open call to create the file.. | |
630 | ||
4c1423ed | 631 | This function is a possible cancellation point and therefore not |
d7e23b02 UD |
632 | marked with __THROW. */ |
633 | # ifndef __USE_FILE_OFFSET64 | |
634 | extern int mkostemp (char *__template, int __flags) __nonnull ((1)) __wur; | |
635 | # else | |
636 | # ifdef __REDIRECT | |
637 | extern int __REDIRECT (mkostemp, (char *__template, int __flags), mkostemp64) | |
638 | __nonnull ((1)) __wur; | |
639 | # else | |
640 | # define mkostemp mkostemp64 | |
641 | # endif | |
642 | # endif | |
643 | # ifdef __USE_LARGEFILE64 | |
644 | extern int mkostemp64 (char *__template, int __flags) __nonnull ((1)) __wur; | |
645 | # endif | |
3a83202d UD |
646 | |
647 | /* Similar to mkostemp, but the template can have a suffix after the | |
648 | XXXXXX. The length of the suffix is specified in the second | |
649 | parameter. | |
650 | ||
651 | This function is a possible cancellation point and therefore not | |
652 | marked with __THROW. */ | |
653 | # ifndef __USE_FILE_OFFSET64 | |
654 | extern int mkostemps (char *__template, int __suffixlen, int __flags) | |
655 | __nonnull ((1)) __wur; | |
656 | # else | |
657 | # ifdef __REDIRECT | |
658 | extern int __REDIRECT (mkostemps, (char *__template, int __suffixlen, | |
659 | int __flags), mkostemps64) | |
660 | __nonnull ((1)) __wur; | |
661 | # else | |
662 | # define mkostemps mkostemps64 | |
663 | # endif | |
664 | # endif | |
665 | # ifdef __USE_LARGEFILE64 | |
666 | extern int mkostemps64 (char *__template, int __suffixlen, int __flags) | |
667 | __nonnull ((1)) __wur; | |
668 | # endif | |
d7e23b02 UD |
669 | #endif |
670 | ||
2c6fe0bd | 671 | |
7a5affeb | 672 | __BEGIN_NAMESPACE_STD |
2c008571 UD |
673 | /* Execute the given line as a shell command. |
674 | ||
675 | This function is a cancellation point and therefore not marked with | |
676 | __THROW. */ | |
a784e502 | 677 | extern int system (const char *__command) __wur; |
7a5affeb | 678 | __END_NAMESPACE_STD |
28f540f4 RM |
679 | |
680 | ||
fa0bc87c RM |
681 | #ifdef __USE_GNU |
682 | /* Return a malloc'd string containing the canonical absolute name of the | |
11bf311e | 683 | existing named file. */ |
a784e502 | 684 | extern char *canonicalize_file_name (const char *__name) |
0476597b | 685 | __THROW __nonnull ((1)) __wur; |
fa0bc87c RM |
686 | #endif |
687 | ||
498afc54 | 688 | #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED |
b7674b11 UD |
689 | /* Return the canonical absolute name of file NAME. If RESOLVED is |
690 | null, the result is malloc'd; otherwise, if the canonical name is | |
691 | PATH_MAX chars or more, returns null with `errno' set to | |
692 | ENAMETOOLONG; if the name fits in fewer than PATH_MAX chars, | |
693 | returns the name in RESOLVED. */ | |
a784e502 | 694 | extern char *realpath (const char *__restrict __name, |
0476597b | 695 | char *__restrict __resolved) __THROW __wur; |
fa0bc87c RM |
696 | #endif |
697 | ||
698 | ||
28f540f4 | 699 | /* Shorthand for type of comparison functions. */ |
60478656 | 700 | #ifndef __COMPAR_FN_T |
2604afb1 | 701 | # define __COMPAR_FN_T |
a784e502 | 702 | typedef int (*__compar_fn_t) (const void *, const void *); |
28f540f4 | 703 | |
2604afb1 | 704 | # ifdef __USE_GNU |
28f540f4 | 705 | typedef __compar_fn_t comparison_fn_t; |
2604afb1 | 706 | # endif |
28f540f4 | 707 | #endif |
e458144c | 708 | #ifdef __USE_GNU |
a784e502 | 709 | typedef int (*__compar_d_fn_t) (const void *, const void *, void *); |
e458144c | 710 | #endif |
28f540f4 | 711 | |
7a5affeb | 712 | __BEGIN_NAMESPACE_STD |
28f540f4 RM |
713 | /* Do a binary search for KEY in BASE, which consists of NMEMB elements |
714 | of SIZE bytes each, using COMPAR to perform the comparisons. */ | |
a784e502 | 715 | extern void *bsearch (const void *__key, const void *__base, |
be27d08c | 716 | size_t __nmemb, size_t __size, __compar_fn_t __compar) |
0476597b | 717 | __nonnull ((1, 2, 5)) __wur; |
28f540f4 | 718 | |
41eda41d OB |
719 | #ifdef __USE_EXTERN_INLINES |
720 | # include <bits/stdlib-bsearch.h> | |
721 | #endif | |
722 | ||
28f540f4 RM |
723 | /* Sort NMEMB elements of BASE, of SIZE bytes each, |
724 | using COMPAR to perform the comparisons. */ | |
c1422e5b | 725 | extern void qsort (void *__base, size_t __nmemb, size_t __size, |
be27d08c | 726 | __compar_fn_t __compar) __nonnull ((1, 4)); |
e458144c UD |
727 | #ifdef __USE_GNU |
728 | extern void qsort_r (void *__base, size_t __nmemb, size_t __size, | |
729 | __compar_d_fn_t __compar, void *__arg) | |
730 | __nonnull ((1, 4)); | |
731 | #endif | |
28f540f4 RM |
732 | |
733 | ||
28f540f4 | 734 | /* Return the absolute value of X. */ |
0476597b UD |
735 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur; |
736 | extern long int labs (long int __x) __THROW __attribute__ ((__const__)) __wur; | |
7a5affeb UD |
737 | __END_NAMESPACE_STD |
738 | ||
ec751a23 | 739 | #ifdef __USE_ISOC99 |
c1422e5b | 740 | __extension__ extern long long int llabs (long long int __x) |
0476597b | 741 | __THROW __attribute__ ((__const__)) __wur; |
59dd8641 | 742 | #endif |
28f540f4 RM |
743 | |
744 | ||
7a5affeb | 745 | __BEGIN_NAMESPACE_STD |
59dd8641 | 746 | /* Return the `div_t', `ldiv_t' or `lldiv_t' representation |
28f540f4 RM |
747 | of the value of NUMER over DENOM. */ |
748 | /* GCC may have built-ins for these someday. */ | |
c1422e5b | 749 | extern div_t div (int __numer, int __denom) |
0476597b | 750 | __THROW __attribute__ ((__const__)) __wur; |
c1422e5b | 751 | extern ldiv_t ldiv (long int __numer, long int __denom) |
0476597b | 752 | __THROW __attribute__ ((__const__)) __wur; |
7a5affeb UD |
753 | __END_NAMESPACE_STD |
754 | ||
ec751a23 | 755 | #ifdef __USE_ISOC99 |
7a5affeb | 756 | __BEGIN_NAMESPACE_C99 |
c1422e5b UD |
757 | __extension__ extern lldiv_t lldiv (long long int __numer, |
758 | long long int __denom) | |
0476597b | 759 | __THROW __attribute__ ((__const__)) __wur; |
7a5affeb | 760 | __END_NAMESPACE_C99 |
59dd8641 | 761 | #endif |
28f540f4 RM |
762 | |
763 | ||
9bde902c | 764 | #if (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8) \ |
498afc54 | 765 | || defined __USE_MISC |
60478656 RM |
766 | /* Convert floating point numbers to strings. The returned values are |
767 | valid only until another call to the same function. */ | |
768 | ||
769 | /* Convert VALUE to a string with NDIGIT digits and return a pointer to | |
770 | this. Set *DECPT with the position of the decimal character and *SIGN | |
771 | with the sign of the number. */ | |
c1422e5b | 772 | extern char *ecvt (double __value, int __ndigit, int *__restrict __decpt, |
0476597b | 773 | int *__restrict __sign) __THROW __nonnull ((3, 4)) __wur; |
60478656 RM |
774 | |
775 | /* Convert VALUE to a string rounded to NDIGIT decimal digits. Set *DECPT | |
776 | with the position of the decimal character and *SIGN with the sign of | |
777 | the number. */ | |
c1422e5b | 778 | extern char *fcvt (double __value, int __ndigit, int *__restrict __decpt, |
0476597b | 779 | int *__restrict __sign) __THROW __nonnull ((3, 4)) __wur; |
60478656 RM |
780 | |
781 | /* If possible convert VALUE to a string with NDIGIT significant digits. | |
782 | Otherwise use exponential representation. The resulting string will | |
783 | be written to BUF. */ | |
be27d08c | 784 | extern char *gcvt (double __value, int __ndigit, char *__buf) |
0476597b | 785 | __THROW __nonnull ((3)) __wur; |
4220c3ef | 786 | #endif |
60478656 | 787 | |
4220c3ef | 788 | #ifdef __USE_MISC |
2064087b | 789 | /* Long double versions of above functions. */ |
c1422e5b | 790 | extern char *qecvt (long double __value, int __ndigit, |
be27d08c | 791 | int *__restrict __decpt, int *__restrict __sign) |
0476597b | 792 | __THROW __nonnull ((3, 4)) __wur; |
c1422e5b | 793 | extern char *qfcvt (long double __value, int __ndigit, |
be27d08c | 794 | int *__restrict __decpt, int *__restrict __sign) |
0476597b | 795 | __THROW __nonnull ((3, 4)) __wur; |
be27d08c | 796 | extern char *qgcvt (long double __value, int __ndigit, char *__buf) |
0476597b | 797 | __THROW __nonnull ((3)) __wur; |
2064087b RM |
798 | |
799 | ||
60478656 RM |
800 | /* Reentrant version of the functions above which provide their own |
801 | buffers. */ | |
c1422e5b UD |
802 | extern int ecvt_r (double __value, int __ndigit, int *__restrict __decpt, |
803 | int *__restrict __sign, char *__restrict __buf, | |
be27d08c | 804 | size_t __len) __THROW __nonnull ((3, 4, 5)); |
c1422e5b UD |
805 | extern int fcvt_r (double __value, int __ndigit, int *__restrict __decpt, |
806 | int *__restrict __sign, char *__restrict __buf, | |
be27d08c | 807 | size_t __len) __THROW __nonnull ((3, 4, 5)); |
c1422e5b UD |
808 | |
809 | extern int qecvt_r (long double __value, int __ndigit, | |
810 | int *__restrict __decpt, int *__restrict __sign, | |
be27d08c UD |
811 | char *__restrict __buf, size_t __len) |
812 | __THROW __nonnull ((3, 4, 5)); | |
c1422e5b UD |
813 | extern int qfcvt_r (long double __value, int __ndigit, |
814 | int *__restrict __decpt, int *__restrict __sign, | |
be27d08c UD |
815 | char *__restrict __buf, size_t __len) |
816 | __THROW __nonnull ((3, 4, 5)); | |
4220c3ef | 817 | #endif /* misc */ |
60478656 RM |
818 | |
819 | ||
7a5affeb | 820 | __BEGIN_NAMESPACE_STD |
28f540f4 RM |
821 | /* Return the length of the multibyte character |
822 | in S, which is no longer than N. */ | |
a065ceff | 823 | extern int mblen (const char *__s, size_t __n) __THROW; |
28f540f4 RM |
824 | /* Return the length of the given multibyte character, |
825 | putting its `wchar_t' representation in *PWC. */ | |
c1422e5b | 826 | extern int mbtowc (wchar_t *__restrict __pwc, |
a065ceff | 827 | const char *__restrict __s, size_t __n) __THROW; |
28f540f4 RM |
828 | /* Put the multibyte character represented |
829 | by WCHAR in S, returning its length. */ | |
a065ceff | 830 | extern int wctomb (char *__s, wchar_t __wchar) __THROW; |
28f540f4 | 831 | |
28f540f4 RM |
832 | |
833 | /* Convert a multibyte string to a wide char string. */ | |
c1422e5b | 834 | extern size_t mbstowcs (wchar_t *__restrict __pwcs, |
a784e502 | 835 | const char *__restrict __s, size_t __n) __THROW; |
28f540f4 | 836 | /* Convert a wide char string to multibyte string. */ |
c1422e5b | 837 | extern size_t wcstombs (char *__restrict __s, |
a784e502 | 838 | const wchar_t *__restrict __pwcs, size_t __n) |
c1422e5b | 839 | __THROW; |
7a5affeb | 840 | __END_NAMESPACE_STD |
28f540f4 RM |
841 | |
842 | ||
498afc54 | 843 | #ifdef __USE_MISC |
857fa1b8 RM |
844 | /* Determine whether the string value of RESPONSE matches the affirmation |
845 | or negative response expression as specified by the LC_MESSAGES category | |
846 | in the program's current locale. Returns 1 if affirmative, 0 if | |
847 | negative, and -1 if not matching. */ | |
a784e502 | 848 | extern int rpmatch (const char *__response) __THROW __nonnull ((1)) __wur; |
857fa1b8 RM |
849 | #endif |
850 | ||
851 | ||
f095bb72 | 852 | #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 |
2064087b RM |
853 | /* Parse comma separated suboption from *OPTIONP and match against |
854 | strings in TOKENS. If found return index and set *VALUEP to | |
855 | optional value introduced by an equal sign. If the suboption is | |
856 | not part of TOKENS return in *VALUEP beginning of unknown | |
857 | suboption. On exit *OPTIONP is set to the beginning of the next | |
2604afb1 | 858 | token or at the terminating NUL character. */ |
c1422e5b | 859 | extern int getsubopt (char **__restrict __optionp, |
a784e502 | 860 | char *const *__restrict __tokens, |
be27d08c | 861 | char **__restrict __valuep) |
0476597b | 862 | __THROW __nonnull ((1, 2, 3)) __wur; |
2064087b RM |
863 | #endif |
864 | ||
865 | ||
2c6fe0bd | 866 | #ifdef __USE_XOPEN |
2c6fe0bd | 867 | /* Setup DES tables according KEY. */ |
a784e502 | 868 | extern void setkey (const char *__key) __THROW __nonnull ((1)); |
0101a56f UD |
869 | #endif |
870 | ||
6591c335 UD |
871 | |
872 | /* X/Open pseudo terminal handling. */ | |
873 | ||
f095bb72 | 874 | #ifdef __USE_XOPEN2KXSI |
0101a56f | 875 | /* Return a master pseudo-terminal handle. */ |
0476597b | 876 | extern int posix_openpt (int __oflag) __wur; |
0101a56f UD |
877 | #endif |
878 | ||
0014680d | 879 | #ifdef __USE_XOPEN_EXTENDED |
6591c335 UD |
880 | /* The next four functions all take a master pseudo-tty fd and |
881 | perform an operation on the associated slave: */ | |
882 | ||
883 | /* Chown the slave to the calling user. */ | |
c1422e5b | 884 | extern int grantpt (int __fd) __THROW; |
6591c335 UD |
885 | |
886 | /* Release an internal lock so the slave can be opened. | |
887 | Call after grantpt(). */ | |
c1422e5b | 888 | extern int unlockpt (int __fd) __THROW; |
6591c335 | 889 | |
6f65e668 | 890 | /* Return the pathname of the pseudo terminal slave associated with |
4bca4c17 UD |
891 | the master FD is open on, or NULL on errors. |
892 | The returned storage is good until the next call to this function. */ | |
0476597b | 893 | extern char *ptsname (int __fd) __THROW __wur; |
2c6fe0bd UD |
894 | #endif |
895 | ||
6591c335 | 896 | #ifdef __USE_GNU |
4bca4c17 UD |
897 | /* Store at most BUFLEN characters of the pathname of the slave pseudo |
898 | terminal associated with the master FD is open on in BUF. | |
899 | Return 0 on success, otherwise an error number. */ | |
be27d08c UD |
900 | extern int ptsname_r (int __fd, char *__buf, size_t __buflen) |
901 | __THROW __nonnull ((2)); | |
6591c335 | 902 | |
4bca4c17 | 903 | /* Open a master pseudo terminal and return its file descriptor. */ |
f1c30c98 | 904 | extern int getpt (void); |
6591c335 | 905 | #endif |
2c6fe0bd | 906 | |
498afc54 | 907 | #ifdef __USE_MISC |
b2277c15 RM |
908 | /* Put the 1 minute, 5 minute and 15 minute load averages into the first |
909 | NELEM elements of LOADAVG. Return the number written (never more than | |
910 | three, but may be less than NELEM), or -1 if an error occurred. */ | |
be27d08c UD |
911 | extern int getloadavg (double __loadavg[], int __nelem) |
912 | __THROW __nonnull ((1)); | |
b2277c15 RM |
913 | #endif |
914 | ||
4242d968 JM |
915 | #if defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K |
916 | /* Return the index into the active-logins file (utmp) for | |
917 | the controlling terminal. */ | |
918 | extern int ttyslot (void) __THROW; | |
919 | #endif | |
920 | ||
f62c8abc | 921 | #include <bits/stdlib-float.h> |
b799f91d UD |
922 | |
923 | /* Define some macros helping to catch buffer overflows. */ | |
5ac3ea17 | 924 | #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function |
b799f91d UD |
925 | # include <bits/stdlib.h> |
926 | #endif | |
c6251f03 RM |
927 | #ifdef __LDBL_COMPAT |
928 | # include <bits/stdlib-ldbl.h> | |
929 | #endif | |
b799f91d | 930 | |
7ef90c15 UD |
931 | #endif /* don't just need malloc and calloc */ |
932 | #undef __need_malloc_and_calloc | |
933 | ||
28f540f4 RM |
934 | __END_DECLS |
935 | ||
936 | #endif /* stdlib.h */ |