#ifndef TYPES_H_
#define TYPES_H_

#ifdef __cplusplus
extern "C" {
#endif

extern int isalnum(int c);
extern int isalpha(int c);
extern int iscntrl(int c);
extern int isdigit(int c);
extern int isgraph(int c);
extern int islower(int c);
extern int isprint(int c);
extern int ispunct(int c);
extern int isspace(int c);
extern int isupper(int c);
extern int isxdigit(int c);
extern int tolower(int c);
extern int toupper(int c);
extern int fill_random(unsigned char *buffer, unsigned int size);

#ifdef __cplusplus
}
#endif

#endif