#include <stdio.h>
#include <string.h>

static const size_t BUFSIZE = 4096;

int main()
{
  char buffer[BUFSIZE];
  
  for(size_t i = 0, n = 0; n < BUFSIZE; ++i){
    n += sprintf(buffer + n, "Iteration: %u with %u charcaters printed so far\n",
		 i, n);
    printf("Iteration: %u with %u charcaters printed so far\n", i, n);
  }

  return 0;
}