#ifndef UTIL_H
#define UTIL_H
#include <stdlib.h>

/* This is commonly used, so put here for easy access. */
#define MYALLOC(TYPE, LEN) (TYPE*)malloc(sizeof(TYPE) * (LEN))


typedef long DATA;
typedef long NUM;
typedef unsigned long long UNUM; /* definitely bigger than size_t */

typedef unsigned char BOOL;


#define HC_ATTR __attribute__((__hot__, __const__))
#define H_ATTR __attribute__((__hot__))
#define P_ATTR __attribute__((__pure__))
#define UNUSED __attribute__((__unused__))
#define U_ATTR UNUSED

#define D_ATTR(X) __attribute__((__unused__, __deprecated__("This is deprecated.\n" \
                                                            "Please use " X \
                                                            " instead")))

#define UD_ATTR __attribute__((__unused__, __deprecated__))
#define UC_ATTR __attribute__((__unused__, __const__))
#define UH_ATTR __attribute__((__unused__, __hot__))
#define UHP_ATTR __attribute__((__unused__, __hot__, __pure__))

/* For convenient declarations */
#define CC_MOD(X) const X const
#define CCR_MOD(X) const X const restrict

#define eprintf(...) fprintf(stderr, __VA_ARGS__)
#define fleprintf0(M) eprintf("%s:%d, " M, __FILE__, __LINE__)
#define fleprintf(M, ...) eprintf("%s:%d, " M, __FILE__, __LINE__, __VA_ARGS__)

#define SAFE_MALLOC(TYPE, VAR, LEN, CLEAN) do { \
    VAR = malloc(sizeof (TYPE) * (LEN));        \
    if (VAR == NULL) {                          \
      fleprintf0("Fail to malloc\n");           \
      { CLEAN };                                \
    }                                           \
  } while (0)

#define SAFE_REALLOC(TYPE, VAR, LEN, CLEAN) do {        \
    TYPE *macro_new_var =                               \
      realloc(VAR, sizeof (TYPE) * (LEN));              \
    if (macro_new_var == NULL) {                        \
      fleprintf0("Fail to realloc\n");                  \
      { CLEAN };                                        \
    } else {                                            \
      VAR = macro_new_var;                              \
    }                                                   \
  } while (0)

BOOL read_entire_file(const char *file_name, char **str, NUM *len);

#endif