160 lines
3.7 KiB
C
160 lines
3.7 KiB
C
#ifndef __STDLIB_H__
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# define __STDLIB_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stddef.h>
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#include <stdint.h>
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#include <bits/exit.h>
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/* Dynamic memory management. */
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/* Allocate SIZE bytes of memory. */
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extern void *malloc(size_t __size);
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/* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */
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extern void *calloc(size_t __nmemb, size_t __size);
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/*
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** Re-allocate the previously allocated block in PTR, making the new block
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** SIZE bytes long.
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*/
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extern void *realloc(void *__ptr, size_t __size);
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/*
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** Re-allocate the previously allocated block in PTR, making the new block large
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** enough for NMEMB elements of SIZE bytes each.
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*/
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extern void *reallocarray(void *__ptr, size_t __nmemb, size_t __size);
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/* Free a block allocated by `malloc', `realloc' or `calloc'. */
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extern void free(void *__ptr);
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/* Communication with the environment. */
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/* Abort execution; raises SIGABRT and leaves quickly with _Exit(). */
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__attribute__((noreturn))
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extern void abort(void);
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/* Exit; calls handlers, flushes and closes streams and temporary files. */
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__attribute__((noreturn))
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extern void exit(int __status);
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/* Exit immediately, bypassing exit handlers or signal handlers. */
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__attribute__((noreturn))
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extern void _Exit(int __status);
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/* Integer arithmetic functions. */
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extern int abs(int __j);
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#define abs(j) ({ \
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int __j = (j); \
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(__j >= 0) ? __j : -(__j); \
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})
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extern long int labs(long int __j);
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#define labs(j) ({ \
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long int __j = (j); \
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(__j >= 0) ? __j : -(__j); \
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})
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extern long long int llabs(long long int __j);
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#define llabs(j) ({ \
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long long int __j = (j); \
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(__j >= 0) ? __j : -(__j); \
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})
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typedef struct {
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int quot, rem;
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} div_t;
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typedef struct {
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long int quot, rem;
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} ldiv_t;
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typedef struct {
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long long int quot, rem;
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} lldiv_t;
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extern div_t div(int __num, int __denom);
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extern ldiv_t ldiv(long int __num, long int __denom);
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extern lldiv_t lldiv(long long int __num, long long int __denom);
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/* Simplified numeric conversion functions. */
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/* ASCII to int. */
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extern int atoi(char const *__ptr);
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/* ASCII to long int. */
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extern long int atol(char const *__ptr);
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/* ASCII to long long int. */
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extern long long int atoll(char const *__ptr);
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/* Numeric conversion functions. */
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/* ASCII to floating-point. */
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extern double atof(char const *__ptr);
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/* Parse a long int from a string. */
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extern long int strtol(
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char const * __restrict__ __ptr,
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char ** __restrict__ __endptr,
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int __base);
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/* Parse a long unsigned int from a string. */
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extern unsigned long int strtoul(
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char const * __restrict__ __ptr,
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char ** __restrict__ __endptr,
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int __base);
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/* Parse a long long int from a string. */
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extern long long int strtoll(
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char const * __restrict__ __ptr,
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char ** __restrict__ __endptr,
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int __base);
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/* Parse a long long unsigned int from a string. */
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extern unsigned long long int strtoull(
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char const * __restrict__ __ptr,
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char ** __restrict__ __endptr,
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int __base);
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/* Parse a double from a string. */
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extern double strtod(
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char const * __restrict__ __ptr,
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char ** __restrict__ __endptr);
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/* Parse a float from a string. */
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extern float strtof(
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char const * __restrict__ __ptr,
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char ** __restrict__ __endptr);
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/* Parse a long double from a string. */
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extern long double strtold(
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char const * __restrict__ __ptr,
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char ** __restrict__ __endptr);
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/* Pseudo-random sequence generation functions. */
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#define RAND_MAX 0x7fffffff
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/* Seed the PRNG. */
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extern void srand(unsigned int seed);
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/* Generate a pseudo-random number between 0 and RAND_MAX. */
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extern int rand(void);
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/* Searching and sorting utilities. */
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void qsort(void *base, size_t nmemb, size_t size,
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int (*compare)(void const *left, void const *right));
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#ifdef __cplusplus
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}
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#endif
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#endif /*__STDLIB_H__*/
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