stdlib.h (3)

NAME

stdlib.h

SYNOPSIS

Data Structures

struct div_t

struct ldiv_t

Macros

#define RAND_MAX 0x7FFF

Typedefs

typedef int(* __compar_fn_t) (const void *, const void *)

Functions

void abort (void) __ATTR_NORETURN__

int abs (int __i)

long labs (long __i)

void * bsearch (const void *__key, const void *__base, size_t __nmemb, size_t __size, int(*__compar)(const void *, const void *))

div_t div (int __num, int __denom) __asm__('__divmodhi4')

ldiv_t ldiv (long __num, long __denom) __asm__('__divmodsi4')

void qsort (void *__base, size_t __nmemb, size_t __size, __compar_fn_t __compar)

long strtol (const char *__nptr, char **__endptr, int __base)

unsigned long strtoul (const char *__nptr, char **__endptr, int __base)

long atol (const char *__s) __ATTR_PURE__

int atoi (const char *__s) __ATTR_PURE__

void exit (int __status) __ATTR_NORETURN__

void * malloc (size_t __size) __ATTR_MALLOC__

void free (void *__ptr)

void * calloc (size_t __nele, size_t __size) __ATTR_MALLOC__

void * realloc (void *__ptr, size_t __size) __ATTR_MALLOC__

double strtod (const char *__nptr, char **__endptr)

double atof (const char *__nptr)

int rand (void)

void srand (unsigned int __seed)

int rand_r (unsigned long *__ctx)

Variables

size_t __malloc_margin

char * __malloc_heap_start

char * __malloc_heap_end

Non-standard (i.e. non-ISO C) functions.

#define RANDOM_MAX 0x7FFFFFFF

char * itoa (int val, char *s, int radix)

char * ltoa (long val, char *s, int radix)

char * utoa (unsigned int val, char *s, int radix)

char * ultoa (unsigned long val, char *s, int radix)

long random (void)

void srandom (unsigned long __seed)

long random_r (unsigned long *__ctx)

Conversion functions for double arguments.

Note that these functions are not located in the default library, libc.a, but in the mathematical library, libm.a. So when linking the application, the -lm option needs to be specified.
#define DTOSTR_ALWAYS_SIGN 0x01 /* put '+' or ' ' for positives */

#define DTOSTR_PLUS_SIGN 0x02 /* put '+' rather than ' ' */

#define DTOSTR_UPPERCASE 0x04 /* put 'E' rather 'e' */

#define EXIT_SUCCESS 0

#define EXIT_FAILURE 1

char * dtostre (double __val, char *__s, unsigned char __prec, unsigned char __flags)

char * dtostrf (double __val, signed char __width, unsigned char __prec, char *__s)

Author

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