Solution using TestAndSet to solve critical section problem

Question

https://code.sololearn.com/cTwgO21bkXwK/?ref=app

I am using TestAndSet in this code to solve critical section problem, but doesn't work. Help me please.

Answer 1

Your function showing some errors check your line 16 TestAndSet fix it also

Some errors i have removed

#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>

long long sum=0,num=40000000;

void *mySumFun(void *vargp){
int step=*(int *) vargp;
for(int i=0;i<num;i++){

TestAndSet(&clock);

sum+=step;

clock=fclose;

}
return NULL;
}

int main() {
pthread_t tid1,tid2;
int step1=1,step2=-1;

pthread_create(&tid2, NULL, mySumFun, &step2);
pthread_create(&tid1, NULL, mySumFun, &step1);

pthread_join(tid1, NULL);
pthread_join(tid2, NULL);

printf("The sum is = %lld \n" , sum);

exit(0);

}