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 #ifdef _ISOC11_SOURCE 53 extern void *aligned_alloc(size_t alignment, size_t size) _ALIGNED_BY_ARG(1); 54 #endif 55 extern void *realloc(void *oldPointer, size_t newSize); 56 57 /* process termination */ 58 extern void abort(void) __attribute__((noreturn)); 59 extern int atexit(void (*func)(void)); 60 extern int atfork(void (*func)(void)); 61 extern void exit(int) __attribute__((noreturn)); 62 extern void _Exit(int) __attribute__((noreturn)); 63 64 /* misc functions */ 65 extern char *realpath(const char *path, char *resolved); 66 67 extern int system(const char *command); 68 69 extern char *mktemp(char *name); 70 extern char *mkdtemp(char *templat); 71 extern int mkstemp(char *templat); 72 73 extern char *ecvt(double value, int digits, int *_decimalPoint, int *_sign); 74 extern char *fcvt(double value, int precision, int *_decimalPoint, 75 int *_sign); 76 extern char *gcvt(double value, int digits, char *buffer); 77 78 extern char *l64a(long n); 79 extern long a64l(const char *string); 80 81 /* environment variables */ 82 extern char **environ; 83 extern int clearenv(void); 84 extern char *getenv(const char *name); 85 extern int putenv(char *string); 86 extern int setenv(char const *name, char const *value, int rewrite); 87 extern int unsetenv(const char *name); 88 89 /* ASCII string to number conversion */ 90 extern double atof(const char *string); 91 extern int atoi(const char *string); 92 extern long atol(const char *string); 93 extern long long int atoll(const char *string); 94 extern unsigned int atoui(const char *string); 95 extern unsigned long atoul(const char *string); 96 97 extern double strtod(const char *string, char **end); 98 extern long double strtold(const char *string, char **end); 99 extern float strtof(const char *string, char **end); 100 extern long strtol(const char *string, char **end, int base); 101 extern unsigned long strtoul(const char *string, char **end, int base); 102 extern long long strtoll(const char *string, char **end, int base); 103 extern unsigned long long strtoull(const char *string, char **end, int base); 104 105 /* random number generation */ 106 extern void srand(unsigned int seed); 107 extern int rand(void); 108 extern int random(void); 109 extern void srandom(unsigned int seed); 110 extern int rand_r(unsigned int *seed); 111 extern int random_r(struct random_data *data, int *result); 112 extern int srandom_r(unsigned int seed, struct random_data *data); 113 extern char *initstate(unsigned int seed, char *state, size_t size); 114 extern char *setstate(char *state); 115 extern int initstate_r(unsigned int seed, void *stateBuffer, 116 size_t stateLength, struct random_data *data); 117 extern int setstate_r(void *stateBuffer, struct random_data *data); 118 119 extern double drand48(void); 120 extern double erand48(unsigned short int xsubi[3]); 121 extern long lrand48(void); 122 extern long nrand48(unsigned short int xsubi[3]); 123 extern long mrand48(void); 124 extern long jrand48(unsigned short int xsubi[3]); 125 extern void srand48(long int seed); 126 extern unsigned short *seed48(unsigned short int seed16v[3]); 127 extern void lcong48(unsigned short int param[7]); 128 129 extern int drand48_r(struct drand48_data *data, double *result); 130 extern int erand48_r(unsigned short int xsubi[3], 131 struct drand48_data *data, double *result); 132 extern int lrand48_r(struct drand48_data *data, long int *result); 133 extern int nrand48_r(unsigned short int xsubi[3], 134 struct drand48_data *data, long int *result); 135 extern int mrand48_r(struct drand48_data *data, long int *result); 136 extern int jrand48_r(unsigned short int xsubi[3], 137 struct drand48_data *data, long int *result); 138 extern int srand48_r(long int seed, struct drand48_data *data); 139 extern int seed48_r(unsigned short int seed16v[3], 140 struct drand48_data *data); 141 extern int lcong48_r(unsigned short int param[7], 142 struct drand48_data *data); 143 144 /* search and sort functions */ 145 typedef int (*_compare_function)(const void *, const void *); 146 147 extern void *bsearch(const void *key, const void *base, size_t numElements, 148 size_t sizeOfElement, _compare_function); 149 extern int heapsort(void *base, size_t numElements, size_t sizeOfElement, 150 _compare_function); 151 extern int mergesort(void *base, size_t numElements, size_t sizeOfElement, 152 _compare_function); 153 extern void qsort(void *base, size_t numElements, size_t sizeOfElement, 154 _compare_function); 155 extern int radixsort(u_char const **base, int numElements, 156 u_char const *table, u_int endByte); 157 extern int sradixsort(u_char const **base, int numElements, 158 u_char const *table, u_int endByte); 159 160 /* misc math functions */ 161 extern int abs(int number); 162 extern long labs(long number); 163 extern long long llabs(long long number); 164 165 extern div_t div(int numerator, int denominator); 166 extern ldiv_t ldiv(long numerator, long denominator); 167 extern lldiv_t lldiv(long long numerator, long long denominator); 168 169 /* wide & multibyte string functions */ 170 extern int mblen(const char *string, size_t maxSize); 171 extern int mbtowc(wchar_t *pwc, const char *string, size_t maxSize); 172 extern int wctomb(char *string, wchar_t wchar); 173 extern size_t mbstowcs(wchar_t *pwcs, const char *string, size_t maxSize); 174 extern size_t wcstombs(char *string, const wchar_t *pwcs, size_t maxSize); 175 176 /* crypt */ 177 extern void setkey(const char *key); 178 179 /* sub-option parsing */ 180 extern int getsubopt(char **optionp, char * const *keylistp, 181 char **valuep); 182 183 /* pty functions */ 184 extern int posix_openpt(int openFlags); 185 extern int grantpt(int masterFD); 186 extern char* ptsname(int masterFD); 187 extern int unlockpt(int masterFD); 188 189 /* internal accessor to value for MB_CUR_MAX */ 190 extern unsigned short __ctype_get_mb_cur_max(void); 191 192 #ifdef __cplusplus 193 } /* extern "C" */ 194 #endif 195 196 #endif /* _STDLIB_H_ */ 197