c - custom malloc implementation using a char array as the memory -



c - custom malloc implementation using a char array as the memory -

i'm bad in c programming. i'm asked next task implement malloc memory allocation library.

declare array of 20000 bytes.

you must implement function malloc(). phone call mymalloc(). signature similar malloc(). should implement myfree() has signature , functionality similar free().

mymalloc() allocates memory mentioned array of 20000 bytes.

all info structures required manage memory must reside within same array.

mymalloc() , myfree() must in file called mymalloc.c. should provide suitable header file mymalloc.h.

can tell me how approach problem. i'm clueless. give thanks in advance.

ok - here starting point - implementation of actual mymalloc/myfree functions left do...

file: mymalloc.h

#include <stdlib.h> void * mymalloc(size_t size); void myfree(void * ptr);

file: mymalloc.c

#include "mymalloc.h" #define pool_size 20000 static char pool[pool_size]; void * mymalloc(size_t size) { // tbd } void myfree(void * ptr) { // tbd }

note you're going need suitable info construction manage allocations within memory pool - typically 1 or more linked lists used this, there alternatives.

c memory-management malloc free

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