1 #ifndef STDLIB_H 2 #define STDLIB_H 3 4 FILE_LICENCE ( GPL2_OR_LATER ); 5 6 #include <stdint.h> 7 #include <assert.h> 8 9 /***************************************************************************** 10 * 11 * Numeric parsing 12 * 13 **************************************************************************** 14 */ 15 16 extern unsigned long strtoul ( const char *p, char **endp, int base ); 17 18 /***************************************************************************** 19 * 20 * Memory allocation 21 * 22 **************************************************************************** 23 */ 24 25 extern void * __malloc malloc ( size_t size ); 26 extern void * realloc ( void *old_ptr, size_t new_size ); 27 extern void free ( void *ptr ); 28 extern void * __malloc zalloc ( size_t len ); 29 30 /** 31 * Allocate cleared memory 32 * 33 * @v nmemb Number of members 34 * @v size Size of each member 35 * @ret ptr Allocated memory 36 * 37 * Allocate memory as per malloc(), and zero it. 38 * 39 * This is implemented as a static inline, with the body of the 40 * function in zalloc(), since in most cases @c nmemb will be 1 and 41 * doing the multiply is just wasteful. 42 */ 43 static inline void * __malloc calloc ( size_t nmemb, size_t size ) { 44 return zalloc ( nmemb * size ); 45 } 46 47 /***************************************************************************** 48 * 49 * Random number generation 50 * 51 **************************************************************************** 52 */ 53 54 extern long int random ( void ); 55 extern void srandom ( unsigned int seed ); 56 57 static inline int rand ( void ) { 58 return random(); 59 } 60 61 static inline void srand ( unsigned int seed ) { 62 srandom ( seed ); 63 } 64 65 /***************************************************************************** 66 * 67 * Miscellaneous 68 * 69 **************************************************************************** 70 */ 71 72 extern int system ( const char *command ); 73 extern __asmcall int main ( void ); 74 75 #endif /* STDLIB_H */ 76
