1 /* 2 * Copyright 2002-2021 Haiku, Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _STDLIB_H_ 6 #define _STDLIB_H_ 7 8 9 #include <alloca.h> 10 #include <div_t.h> 11 #include <limits.h> 12 #include <stddef.h> 13 #include <sys/types.h> 14 #include <sys/wait.h> 15 #include <wchar_t.h> 16 17 #define RAND_MAX 0x7fffffff 18 #define MB_CUR_MAX (__ctype_get_mb_cur_max()) 19 20 #define EXIT_SUCCESS 0 21 #define EXIT_FAILURE 1 22 23 /* random data structures (for thread-safe random numbers) */ 24 struct random_data { 25 int *fptr; 26 int *rptr; 27 int *state; 28 int rand_type; 29 int rand_deg; 30 int rand_sep; 31 int *end_ptr; 32 }; 33 34 struct drand48_data { 35 unsigned short int x[3]; 36 unsigned short int a[3]; 37 unsigned short int c; 38 unsigned short int old_x[3]; 39 int init; 40 }; 41 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 /* memory allocation (see malloc.h for additional defines & prototypes) */ 48 extern void *calloc(size_t numElements, size_t size); 49 extern void free(void *pointer); 50 extern void *malloc(size_t size); 51 extern int posix_memalign(void **_pointer, size_t alignment, size_t size); 52 extern void *aligned_alloc(size_t alignment, size_t size) _ALIGNED_BY_ARG(1); 53 extern void *realloc(void *oldPointer, size_t newSize); 54 55 /* process termination */ 56 extern void abort(void) __attribute__((noreturn)); 57 extern int atexit(void (*func)(void)); 58 extern int atfork(void (*func)(void)); 59 extern void exit(int) __attribute__((noreturn)); 60 extern void _Exit(int) __attribute__((noreturn)); 61 62 /* misc functions */ 63 extern char *realpath(const char *path, char *resolved); 64 65 extern int system(const char *command); 66 67 extern char *mktemp(char *name); 68 extern char *mkdtemp(char *templat); 69 extern int mkstemp(char *templat); 70 71 extern char *ecvt(double value, int digits, int *_decimalPoint, int *_sign); 72 extern char *fcvt(double value, int precision, int *_decimalPoint, 73 int *_sign); 74 extern char *gcvt(double value, int digits, char *buffer); 75 76 extern char *l64a(long n); 77 extern long a64l(const char *string); 78 79 /* environment variables */ 80 extern char **environ; 81 extern int clearenv(void); 82 extern char *getenv(const char *name); 83 extern int putenv(char *string); 84 extern int setenv(char const *name, char const *value, int rewrite); 85 extern int unsetenv(const char *name); 86 87 /* ASCII string to number conversion */ 88 extern double atof(const char *string); 89 extern int atoi(const char *string); 90 extern long atol(const char *string); 91 extern long long int atoll(const char *string); 92 extern unsigned int atoui(const char *string); 93 extern unsigned long atoul(const char *string); 94 95 extern double strtod(const char *string, char **end); 96 extern long double strtold(const char *string, char **end); 97 extern float strtof(const char *string, char **end); 98 extern long strtol(const char *string, char **end, int base); 99 extern unsigned long strtoul(const char *string, char **end, int base); 100 extern long long strtoll(const char *string, char **end, int base); 101 extern unsigned long long strtoull(const char *string, char **end, int base); 102 103 /* random number generation */ 104 extern void srand(unsigned int seed); 105 extern int rand(void); 106 extern int random(void); 107 extern void srandom(unsigned int seed); 108 extern int rand_r(unsigned int *seed); 109 extern int random_r(struct random_data *data, int *result); 110 extern int srandom_r(unsigned int seed, struct random_data *data); 111 extern char *initstate(unsigned int seed, char *state, size_t size); 112 extern char *setstate(char *state); 113 extern int initstate_r(unsigned int seed, void *stateBuffer, 114 size_t stateLength, struct random_data *data); 115 extern int setstate_r(void *stateBuffer, struct random_data *data); 116 117 extern double drand48(void); 118 extern double erand48(unsigned short int xsubi[3]); 119 extern long lrand48(void); 120 extern long nrand48(unsigned short int xsubi[3]); 121 extern long mrand48(void); 122 extern long jrand48(unsigned short int xsubi[3]); 123 extern void srand48(long int seed); 124 extern unsigned short *seed48(unsigned short int seed16v[3]); 125 extern void lcong48(unsigned short int param[7]); 126 127 extern int drand48_r(struct drand48_data *data, double *result); 128 extern int erand48_r(unsigned short int xsubi[3], 129 struct drand48_data *data, double *result); 130 extern int lrand48_r(struct drand48_data *data, long int *result); 131 extern int nrand48_r(unsigned short int xsubi[3], 132 struct drand48_data *data, long int *result); 133 extern int mrand48_r(struct drand48_data *data, long int *result); 134 extern int jrand48_r(unsigned short int xsubi[3], 135 struct drand48_data *data, long int *result); 136 extern int srand48_r(long int seed, struct drand48_data *data); 137 extern int seed48_r(unsigned short int seed16v[3], 138 struct drand48_data *data); 139 extern int lcong48_r(unsigned short int param[7], 140 struct drand48_data *data); 141 142 /* search and sort functions */ 143 typedef int (*_compare_function)(const void *, const void *); 144 145 extern void *bsearch(const void *key, const void *base, size_t numElements, 146 size_t sizeOfElement, _compare_function); 147 extern int heapsort(void *base, size_t numElements, size_t sizeOfElement, 148 _compare_function); 149 extern int mergesort(void *base, size_t numElements, size_t sizeOfElement, 150 _compare_function); 151 extern void qsort(void *base, size_t numElements, size_t sizeOfElement, 152 _compare_function); 153 extern int radixsort(u_char const **base, int numElements, 154 u_char const *table, u_int endByte); 155 extern int sradixsort(u_char const **base, int numElements, 156 u_char const *table, u_int endByte); 157 158 /* misc math functions */ 159 extern int abs(int number); 160 extern long labs(long number); 161 extern long long llabs(long long number); 162 163 extern div_t div(int numerator, int denominator); 164 extern ldiv_t ldiv(long numerator, long denominator); 165 extern lldiv_t lldiv(long long numerator, long long denominator); 166 167 /* wide & multibyte string functions */ 168 extern int mblen(const char *string, size_t maxSize); 169 extern int mbtowc(wchar_t *pwc, const char *string, size_t maxSize); 170 extern int wctomb(char *string, wchar_t wchar); 171 extern size_t mbstowcs(wchar_t *pwcs, const char *string, size_t maxSize); 172 extern size_t wcstombs(char *string, const wchar_t *pwcs, size_t maxSize); 173 174 /* crypt */ 175 extern void setkey(const char *key); 176 177 /* sub-option parsing */ 178 extern int getsubopt(char **optionp, char * const *keylistp, 179 char **valuep); 180 181 /* pty functions */ 182 extern int posix_openpt(int openFlags); 183 extern int grantpt(int masterFD); 184 extern char* ptsname(int masterFD); 185 extern int unlockpt(int masterFD); 186 187 /* internal accessor to value for MB_CUR_MAX */ 188 extern unsigned short __ctype_get_mb_cur_max(void); 189 190 #ifdef __cplusplus 191 } /* extern "C" */ 192 #endif 193 194 #endif /* _STDLIB_H_ */ 195