#ifndef _STRING_H
#define _STRING_H

#include <mlibc-config.h>
#include <bits/null.h>
#include <bits/size_t.h>

#ifdef __cplusplus
extern "C" {
#endif

#ifndef __MLIBC_ABI_ONLY

// [7.24.2] Copying functions

void *memcpy(void *__restrict dest, const void *__restrict src, size_t size);
void *memmove(void *dest, const void *src, size_t size);
char *strcpy(char *__restrict dest, const char *src);
char *strncpy(char *__restrict dest, const char *src, size_t max_size);

// [7.24.3] Concatenation functions

char *strcat(char *__restrict dest, const char *__restrict src);
char *strncat(char *__restrict dest, const char *__restrict src, size_t max_size);

// [7.24.4] Comparison functions

int memcmp(const void *a, const void *b, size_t size);
int strcmp(const char *a, const char *b);
int strcoll(const char *a, const char *b);
int strncmp(const char *a, const char *b, size_t max_size);
size_t strxfrm(char *__restrict dest, const char *__restrict src, size_t max_size);

// [7.24.5] Search functions

void *memchr(const void *s, int c, size_t size);
char *strchr(const char *s, int c);
size_t strcspn(const char *s, const char *chrs);
char *strpbrk(const char *s, const char *chrs);
char *strrchr(const char *s, int c);
size_t strspn(const char *s, const char *chrs);
char *strstr(const char *pattern, const char *s);
char *strtok(char *__restrict s, const char *__restrict delimiter);

// This is a GNU extension.
char *strchrnul(const char *, int);

// [7.24.6] Miscellaneous functions

void *memset(void *dest, int c, size_t size);
char *strerror(int errnum);
size_t strlen(const char *s);

#endif /* !__MLIBC_ABI_ONLY */

#if __MLIBC_POSIX_OPTION && (defined(_BSD_SOURCE) || defined(_GNU_SOURCE))
#include <strings.h>
#endif

#ifndef __MLIBC_ABI_ONLY

// POSIX extensions.
int strerror_r(int, char *, size_t);
void *mempcpy(void *, const void *, size_t);

// GNU extensions.
int strverscmp(const char *l0, const char *r0);
int ffsl(long i);
int ffsll(long long i);
void *memmem(const void *, size_t, const void *, size_t);

/* Handling the basename mess:
 * If <libgen.h> is included *at all*, we use the XPG-defined basename
 * implementation, otherwise, we use the GNU one. Since our ABI previously
 * provided the XPG one under basename, we'll have to diverge from GNU here and
 * provide __mlibc_gnu_basename instead.
 */
#if __MLIBC_GLIBC_OPTION && defined(_GNU_SOURCE) && !defined(basename)
char *__mlibc_gnu_basename_c(const char *path);

# ifdef __cplusplus
extern "C++" {
static inline const char *__mlibc_gnu_basename(const char *path) {
	return __mlibc_gnu_basename_c(path);
}
static inline char *__mlibc_gnu_basename(char *path) {
	return __mlibc_gnu_basename_c(path);
}
}
# else
#  define __mlibc_gnu_basename __mlibc_gnu_basename_c
# endif

#define basename __mlibc_gnu_basename
#endif

#endif /* !__MLIBC_ABI_ONLY */

#ifdef __cplusplus
}
#endif

#if __MLIBC_POSIX_OPTION
#	include <bits/posix/posix_string.h>
#endif

#endif // _STRING_H