// Copyright 2016 The Fuchsia Authors
// Copyright (c) 2008 Travis Geiselbrecht
//
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT

#ifndef ZIRCON_KERNEL_LIB_LIBC_INCLUDE_STRING_H_
#define ZIRCON_KERNEL_LIB_LIBC_INCLUDE_STRING_H_

#include <stddef.h>
#include <zircon/compiler.h>

__BEGIN_CDECLS

void *memchr(void const *, int, size_t) __PURE;
int memcmp(void const *, const void *, size_t) __PURE;
void *memcpy(void *, void const *, size_t);
void *memmove(void *, void const *, size_t);
void *memset(void *, int, size_t);

char *strcat(char *, char const *);
char *strchr(char const *, int) __PURE;
int strcmp(char const *, char const *) __PURE;
char *strcpy(char *, char const *);
size_t strlen(char const *) __PURE;
char *strncat(char *, char const *, size_t);
int strncmp(char const *, char const *, size_t) __PURE;
char *strncpy(char *, char const *, size_t);
char *strpbrk(char const *, char const *) __PURE;
char *strrchr(char const *, int) __PURE;
size_t strspn(char const *, char const *) __PURE;
size_t strcspn(const char *s, const char *) __PURE;
char *strstr(char const *, char const *) __PURE;
char *strtok(char *, char const *);
int strcoll(const char *s1, const char *s2) __PURE;
size_t strxfrm(char *dest, const char *src, size_t n) __PURE;

// Not actually defined in the kernel, but <cstring> expects the declaration.
char *strerror(int);

/* non standard */
size_t strlcat(char *, char const *, size_t);
size_t strlcpy(char *, char const *, size_t);
int strncasecmp(char const *, char const *, size_t) __PURE;
int strnicmp(char const *, char const *, size_t) __PURE;
size_t strnlen(char const *s, size_t count) __PURE;

// Used by address sanitizer.
__typeof(memcpy) __unsanitized_memcpy;
__typeof(memmove) __unsanitized_memmove;
__typeof(memset) __unsanitized_memset;

__END_CDECLS

#endif  // ZIRCON_KERNEL_LIB_LIBC_INCLUDE_STRING_H_