#ifndef STDIO_HEADER
#define STDIO_HEADER

#include <stdio.h>

#endif

#ifndef STDLIB_HEADER
#define STDLIB_HEADER

#include <stdlib.h>

#endif

#ifndef STRING_HEADER
#define STRING_HEADER

#include <string.h>

#endif

#ifndef MATH_HEADER
#define MATH_HEADER

#include <math.h>

#endif

#ifndef COMMON_HEADER
#define COMMON_HEADER

/* Checks if a pointer assigned through dynamic memory allocation is NULL */
void checkNullPointer(void *ptr);

/* Opens a file and checks if the file is safe to use */
FILE *safeFileOpen(FILE **f, char *fileName, char *mode);

#endif