how do i cast the void pointer to char array in a multithreaded program in C [closed]

Question

how do i cast the void pointer to char array in a multithreaded program in C

void* write(void* ptr) {    
   char array[100];
   array= (char*)ptr;
   printf("%s",array);  
}

Answer 1

You can't.

You can cast it to a char pointer, however:

void* write(void* ptr){    
   char *array;
   array= (char*)ptr;
   printf("%s",array);  
}

Answer 2

You might need to use a pointer to a char array and not a fixed-size array.

void *ptr;
...
char *message;
message = (char *) ptr;

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