#ifndef STDIO_HEADER

#define STDIO_HEADER
#include <stdio.h>

#endif

#ifndef STDLIB_HEADER

#define STDLIB_HEADER
#include <stdlib.h>

#endif

#ifndef COMMON_HEADER

#define COMMON_HEADER

void checkNullPointer(void *ptr);
void checkInputArgs(int argc, char **argv, FILE **datasetFile, \
    FILE **polygonFile, FILE **outputFile);

#endif