#ifndef __SODIUM_UTILS_H__
#define __SODIUM_UTILS_H__

#include <stddef.h>

#include "export.h"

#ifdef __cplusplus
extern "C" {
#endif

#if defined(__cplusplus) || !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
# define _SODIUM_C99(X)
#else
# define _SODIUM_C99(X) X
#endif

unsigned char *_sodium_alignedcalloc(unsigned char ** const unaligned_p,
                                     const size_t len);

SODIUM_EXPORT
void sodium_memzero(void * const pnt, const size_t len);

SODIUM_EXPORT
int sodium_memcmp(const void * const b1_, const void * const b2_, size_t len);

SODIUM_EXPORT
char *sodium_bin2hex(char * const hex, const size_t hex_maxlen,
                     const unsigned char * const bin, const size_t bin_len);

SODIUM_EXPORT
int sodium_hex2bin(unsigned char * const bin, const size_t bin_maxlen,
                   const char * const hex, const size_t hex_len,
                   const char * const ignore, size_t * const bin_len,
                   const char ** const hex_end);

SODIUM_EXPORT
int sodium_mlock(void * const addr, const size_t len);

SODIUM_EXPORT
int sodium_munlock(void * const addr, const size_t len);

#ifdef __cplusplus
}
#endif

#endif