doc/doxygen/stdlib_8h_source.html

 #pragma once


 #ifndef __KERNEL__


 #include "stddef.h"


 #define EXIT_SUCCESS 0

 #define EXIT_FAILURE 1


 size_t malloc_usable_size(void *ptr);


 void *malloc(unsigned int size);


 void *calloc(size_t num, size_t size);


 void *realloc(void *ptr, size_t size);


 void free(void *ptr);


 void abort(void);


 int setenv(const char *name, const char *value, int overwrite);


 int unsetenv(const char *name);


 char *getenv(const char *name);


 #endif


 #define RAND_MAX ((1U << 31U) - 1U)


 void srand(unsigned x);


 unsigned rand(void);


 float randf(void);


 int randint(int lb, int ub);


 unsigned randuint(unsigned lb, unsigned ub);


 float randfloat(float lb, float ub);

stddef.h
Define basic data types.

randf
float randf(void)
Generates a random floating point number between 0 and 1.
Definition: stdlib.c:123

unsetenv
int unsetenv(const char *name)
Tries to remove the variable from the environment.
Definition: setenv.c:118

randint
int randint(int lb, int ub)
Generates a random integer between lb and ub.
Definition: stdlib.c:128

realloc
void * realloc(void *ptr, size_t size)
Reallocates the given area of memory.
Definition: stdlib.c:71

setenv
int setenv(const char *name, const char *value, int overwrite)
Tries to adds the variable to the environment.
Definition: setenv.c:57

srand
void srand(unsigned x)
Allows to set the seed of the random value generator.
Definition: stdlib.c:113

randfloat
float randfloat(float lb, float ub)
Generates a random float between lb and ub.
Definition: stdlib.c:138

calloc
void * calloc(size_t num, size_t size)
Allocates a block of memory for an array of num elements.
Definition: stdlib.c:62

abort
void abort(void)
Cause an abnormal program termination with core-dump.
Definition: abort.c:15

malloc_usable_size
size_t malloc_usable_size(void *ptr)
Returns the number of usable bytes in the block pointed to by ptr.

rand
unsigned rand(void)
Generates a random unsigned integer between 0 and RAND_MAX.
Definition: stdlib.c:118

getenv
char * getenv(const char *name)
Returns the value of the given variable.
Definition: setenv.c:147

malloc
void * malloc(unsigned int size)
Provides dynamically allocated memory.
Definition: stdlib.c:42

randuint
unsigned randuint(unsigned lb, unsigned ub)
Generates a random unsigned between lb and ub.
Definition: stdlib.c:133

free
void free(void *ptr)
Frees dynamically allocated memory.
Definition: stdlib.c:98