c - Free function not working -

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i have following c code. 

#include <stdio.h> #include <stdlib.h>  int main() {     while (1) {         int *test = malloc(sizeof(*test));         test = 500;         free(test);     }     return 0; }

the free function not seem work allocated memory grows 2gb within few seconds. problem?

you can free pointer return of malloc.

in writing test = 500, you've changed memory location pointed test. trying free undefined behaviour.

to assign value allocated integer, derefence it: *test = 500;


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