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#ifndef UTIL_H
#define UTIL_H
#ifndef VIS_INTERNAL
#define VIS_INTERNAL static
#endif
#ifndef CONFIG_HELP
#define CONFIG_HELP 1
#endif
#ifndef CONFIG_CURSES
#define CONFIG_CURSES 0
#endif
#ifndef CONFIG_LUA
#define CONFIG_LUA 0
#endif
#ifndef CONFIG_LPEG
#define CONFIG_LPEG 0
#endif
#ifndef CONFIG_TRE
#define CONFIG_TRE 0
#endif
#ifndef CONFIG_SELINUX
#define CONFIG_SELINUX 0
#endif
#ifndef CONFIG_ACL
#define CONFIG_ACL 0
#endif
#undef _XOPEN_SOURCE
#define _XOPEN_SOURCE 700
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <libgen.h>
#include <limits.h>
#include <locale.h>
#include <poll.h>
#include <pwd.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/select.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <wchar.h>
#if CONFIG_ACL
#include <sys/acl.h>
#endif
#if CONFIG_SELINUX
#include <selinux/selinux.h>
#endif
#define LENGTH(x) ((int)(sizeof (x) / sizeof *(x)))
#define MIN(a, b) ((a) > (b) ? (b) : (a))
#define MAX(a, b) ((a) < (b) ? (b) : (a))
/* is c the start of a utf8 sequence? */
#define ISUTF8(c) (((c)&0xC0)!=0x80)
#define ISASCII(ch) ((unsigned char)ch < 0x80)
#if GCC_VERSION>=5004000 || CLANG_VERSION>=4000000
#define addu __builtin_add_overflow
#else
static inline bool addu(size_t a, size_t b, size_t *c) {
if (SIZE_MAX - a < b)
return false;
*c = a + b;
return true;
}
#endif
/* Needed for building on GNU Hurd */
#ifndef PIPE_BUF
#define PIPE_BUF 4096
#endif
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
#endif /* UTIL_H */
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