1 /* 2 * Copyright 2002-2008, 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 <wchar_t.h> 15 16 17 #define RAND_MAX 0x7fffffff 18 #define MB_CUR_MAX 1 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 *realloc(void *oldPointer, size_t newSize); 53 54 /* process termination */ 55 extern void abort(void); 56 extern int atexit(void (*func)(void)); 57 extern int atfork(void (*func)(void)); 58 extern void exit(int); 59 60 /* misc functions */ 61 extern char *realpath(const char *path, char *resolved); 62 63 extern int daemon(int nochdir, int noclose); 64 extern int system(const char *command); 65 66 extern char *mktemp(char *name); 67 extern int mkstemp(char *templat); 68 69 extern char *ecvt(double value, int digits, int *_decimalPoint, int *_sign); 70 extern char *fcvt(double value, int precision, int *_decimalPoint, 71 int *_sign); 72 extern char *gcvt(double value, int digits, char *buffer); 73 74 /* environment variables */ 75 extern char **environ; 76 extern int clearenv(void); 77 extern char *getenv(const char *name); 78 extern int putenv(const char *string); 79 extern int setenv(char const *name, char const *value, int rewrite); 80 extern int unsetenv(const char *name); 81 82 /* ASCII string to number conversion */ 83 extern double atof(const char *string); 84 extern int atoi(const char *string); 85 extern long atol(const char *string); 86 extern long long int atoll(const char *string); 87 extern unsigned int atoui(const char *string); 88 extern unsigned long atoul(const char *string); 89 90 extern double strtod(const char *string, char **end); 91 extern long strtol(const char *string, char **end, int base); 92 extern unsigned long strtoul(const char *string, char **end, int base); 93 extern long long strtoll(const char *string, char **end, int base); 94 extern unsigned long long strtoull(const char *string, char **end, int base); 95 96 /* random number generation */ 97 extern void srand(unsigned int seed); 98 extern int rand(void); 99 extern int random(void); 100 extern void srandom(unsigned int seed); 101 extern int rand_r(unsigned int *seed); 102 extern int random_r(struct random_data *data, int *result); 103 extern int srandom_r(unsigned int seed, struct random_data *data); 104 extern char *initstate(unsigned int seed, char *state, size_t size); 105 extern char *setstate(char *state); 106 extern int initstate_r(unsigned int seed, void *stateBuffer, 107 size_t stateLength, struct random_data *data); 108 extern int setstate_r(void *stateBuffer, struct random_data *data); 109 110 extern double drand48(void); 111 extern double erand48(unsigned short int xsubi[3]); 112 extern long lrand48(void); 113 extern long nrand48(unsigned short int xsubi[3]); 114 extern long mrand48(void); 115 extern long jrand48(unsigned short int xsubi[3]); 116 extern void srand48(long int seed); 117 extern unsigned short *seed48(unsigned short int seed16v[3]); 118 extern void lcong48(unsigned short int param[7]); 119 120 extern int drand48_r(struct drand48_data *data, double *result); 121 extern int erand48_r(unsigned short int xsubi[3], 122 struct drand48_data *data, double *result); 123 extern int lrand48_r(struct drand48_data *data, long int *result); 124 extern int nrand48_r(unsigned short int xsubi[3], 125 struct drand48_data *data, long int *result); 126 extern int mrand48_r(struct drand48_data *data, long int *result); 127 extern int jrand48_r(unsigned short int xsubi[3], 128 struct drand48_data *data, long int *result); 129 extern int srand48_r(long int seed, struct drand48_data *data); 130 extern int seed48_r(unsigned short int seed16v[3], 131 struct drand48_data *data); 132 extern int lcong48_r(unsigned short int param[7], 133 struct drand48_data *data); 134 135 /* search and sort functions */ 136 typedef int (*_compare_function)(const void *, const void *); 137 138 extern void *bsearch(const void *key, const void *base, size_t numElements, 139 size_t sizeOfElement, _compare_function); 140 extern int heapsort(void *base, size_t numElements, size_t sizeOfElement, 141 _compare_function); 142 extern int mergesort(void *base, size_t numElements, size_t sizeOfElement, 143 _compare_function); 144 extern void qsort(void *base, size_t numElements, size_t sizeOfElement, 145 _compare_function); 146 extern int radixsort(u_char const **base, int numElements, 147 u_char const *table, u_int endByte); 148 extern int sradixsort(u_char const **base, int numElements, 149 u_char const *table, u_int endByte); 150 151 /* misc math functions */ 152 extern int abs(int number); 153 extern long labs(long number); 154 extern long long llabs(long long number); 155 156 extern div_t div(int numerator, int denominator); 157 extern ldiv_t ldiv(long numerator, long denominator); 158 extern lldiv_t lldiv(long long numerator, long long denominator); 159 160 /* wide & multibyte string functions */ 161 extern int mblen(const char *string, size_t maxSize); 162 extern int mbtowc(wchar_t *pwc, const char *string, size_t maxSize); 163 extern int wctomb(char *string, wchar_t wchar); 164 extern size_t mbstowcs(wchar_t *pwcs, const char *string, size_t maxSize); 165 extern size_t wcstombs(char *string, const wchar_t *pwcs, size_t maxSize); 166 167 /* crypt */ 168 extern void setkey(const char *key); 169 170 171 /* pty functions */ 172 extern int posix_openpt(int openFlags); 173 extern int grantpt(int masterFD); 174 extern char* ptsname(int masterFD); 175 extern int unlockpt(int masterFD); 176 177 #ifdef __cplusplus 178 } /* extern "C" */ 179 #endif 180 181 #endif /* _STDLIB_H_ */ 182