we are getting the following error in our c program : munmap$\_$chunk$()$: invalid pointer please let us know how can we resolve this this $is$ the screen shot $of$ our thread function for the reference int start $=$ threadStruct $$ start;

int end $=$ threadStruct $$ end;

int count $=$;

int num $=0$;

for$($int $i=$ start; $i$ end; $i++$

int ${?}^{**}$ num $=$ &threadStruct $a[i]$;

if$($is$\_$prime$(*$num$))\{$