// Declares a dictionary's functionality
#ifndef DICTIONARY_H
#define DICTIONARY_H
#include <stdbool.h>
// Maximum length for a word
// (e.g., pneumonoultramicroscopicsilicovolcanoconiosis)
#define LENGTH 45
// Prototypes
bool load(const char *dictionary);
unsigned int size(void);
bool check(const char *word);
bool unload(void);
#endif // DICTIONARY_H
why stdbool.h is included here and not other libraries( that contain int and char types )