1 /* 2 * Copyright 2002-2010 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 extern void _Exit(int); 60 61 /* misc functions */ 62 extern char *realpath(const char *path, char *resolved); 63 64 extern int system(const char *command); 65 66 extern char *mktemp(char *name); 67 extern char *mkdtemp(char *templat); 68 extern int mkstemp(char *templat); 69 70 extern char *ecvt(double value, int digits, int *_decimalPoint, int *_sign); 71 extern char *fcvt(double value, int precision, int *_decimalPoint, 72 int *_sign); 73 extern char *gcvt(double value, int digits, char *buffer); 74 75 /* environment variables */ 76 extern char **environ; 77 extern int clearenv(void); 78 extern char *getenv(const char *name); 79 extern int putenv(const char *string); 80 extern int setenv(char const *name, char const *value, int rewrite); 81 extern int unsetenv(const char *name); 82 83 /* ASCII string to number conversion */ 84 extern double atof(const char *string); 85 extern int atoi(const char *string); 86 extern long atol(const char *string); 87 extern long long int atoll(const char *string); 88 extern unsigned int atoui(const char *string); 89 extern unsigned long atoul(const char *string); 90 91 extern double strtod(const char *string, char **end); 92 extern long double strtold(const char *string, char **end); 93 extern float strtof(const char *string, char **end); 94 extern long strtol(const char *string, char **end, int base); 95 extern unsigned long strtoul(const char *string, char **end, int base); 96 extern long long strtoll(const char *string, char **end, int base); 97 extern unsigned long long strtoull(const char *string, char **end, int base); 98 99 /* random number generation */ 100 extern void srand(unsigned int seed); 101 extern int rand(void); 102 extern int random(void); 103 extern void srandom(unsigned int seed); 104 extern int rand_r(unsigned int *seed); 105 extern int random_r(struct random_data *data, int *result); 106 extern int srandom_r(unsigned int seed, struct random_data *data); 107 extern char *initstate(unsigned int seed, char *state, size_t size); 108 extern char *setstate(char *state); 109 extern int initstate_r(unsigned int seed, void *stateBuffer, 110 size_t stateLength, struct random_data *data); 111 extern int setstate_r(void *stateBuffer, struct random_data *data); 112 113 extern double drand48(void); 114 extern double erand48(unsigned short int xsubi[3]); 115 extern long lrand48(void); 116 extern long nrand48(unsigned short int xsubi[3]); 117 extern long mrand48(void); 118 extern long jrand48(unsigned short int xsubi[3]); 119 extern void srand48(long int seed); 120 extern unsigned short *seed48(unsigned short int seed16v[3]); 121 extern void lcong48(unsigned short int param[7]); 122 123 extern int drand48_r(struct drand48_data *data, double *result); 124 extern int erand48_r(unsigned short int xsubi[3], 125 struct drand48_data *data, double *result); 126 extern int lrand48_r(struct drand48_data *data, long int *result); 127 extern int nrand48_r(unsigned short int xsubi[3], 128 struct drand48_data *data, long int *result); 129 extern int mrand48_r(struct drand48_data *data, long int *result); 130 extern int jrand48_r(unsigned short int xsubi[3], 131 struct drand48_data *data, long int *result); 132 extern int srand48_r(long int seed, struct drand48_data *data); 133 extern int seed48_r(unsigned short int seed16v[3], 134 struct drand48_data *data); 135 extern int lcong48_r(unsigned short int param[7], 136 struct drand48_data *data); 137 138 /* search and sort functions */ 139 typedef int (*_compare_function)(const void *, const void *); 140 141 extern void *bsearch(const void *key, const void *base, size_t numElements, 142 size_t sizeOfElement, _compare_function); 143 extern int heapsort(void *base, size_t numElements, size_t sizeOfElement, 144 _compare_function); 145 extern int mergesort(void *base, size_t numElements, size_t sizeOfElement, 146 _compare_function); 147 extern void qsort(void *base, size_t numElements, size_t sizeOfElement, 148 _compare_function); 149 extern int radixsort(u_char const **base, int numElements, 150 u_char const *table, u_int endByte); 151 extern int sradixsort(u_char const **base, int numElements, 152 u_char const *table, u_int endByte); 153 154 /* misc math functions */ 155 extern int abs(int number); 156 extern long labs(long number); 157 extern long long llabs(long long number); 158 159 extern div_t div(int numerator, int denominator); 160 extern ldiv_t ldiv(long numerator, long denominator); 161 extern lldiv_t lldiv(long long numerator, long long denominator); 162 163 /* wide & multibyte string functions */ 164 extern int mblen(const char *string, size_t maxSize); 165 extern int mbtowc(wchar_t *pwc, const char *string, size_t maxSize); 166 extern int wctomb(char *string, wchar_t wchar); 167 extern size_t mbstowcs(wchar_t *pwcs, const char *string, size_t maxSize); 168 extern size_t wcstombs(char *string, const wchar_t *pwcs, size_t maxSize); 169 170 /* crypt */ 171 extern void setkey(const char *key); 172 173 /* sub-option parsing */ 174 extern int getsubopt(char **optionp, char * const *keylistp, 175 char **valuep); 176 177 /* pty functions */ 178 extern int posix_openpt(int openFlags); 179 extern int grantpt(int masterFD); 180 extern char* ptsname(int masterFD); 181 extern int unlockpt(int masterFD); 182 183 #ifdef __cplusplus 184 } /* extern "C" */ 185 #endif 186 187 #endif /* _STDLIB_H_ */ 188