-#ifndef _LIMITS_H___
-#ifndef _MACH_MACHLIMITS_H_
+/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
-/* _MACH_MACHLIMITS_H_ is used on OSF/1. */
+#ifndef _LIMITS_H___
#define _LIMITS_H___
-#define _MACH_MACHLIMITS_H_
/* Number of bits in a `char'. */
#undef CHAR_BIT
-#define CHAR_BIT 8
+#define CHAR_BIT __CHAR_BIT__
/* Maximum length of a multibyte character. */
#ifndef MB_LEN_MAX
/* Minimum and maximum values a `signed char' can hold. */
#undef SCHAR_MIN
-#define SCHAR_MIN (-128)
+#define SCHAR_MIN (-SCHAR_MAX - 1)
#undef SCHAR_MAX
-#define SCHAR_MAX 127
+#define SCHAR_MAX __SCHAR_MAX__
/* Maximum value an `unsigned char' can hold. (Minimum is 0). */
#undef UCHAR_MAX
-#define UCHAR_MAX 255
+#if __SCHAR_MAX__ == __INT_MAX__
+# define UCHAR_MAX (SCHAR_MAX * 2U + 1U)
+#else
+# define UCHAR_MAX (SCHAR_MAX * 2 + 1)
+#endif
/* Minimum and maximum values a `char' can hold. */
#ifdef __CHAR_UNSIGNED__
-#undef CHAR_MIN
-#define CHAR_MIN 0
-#undef CHAR_MAX
-#define CHAR_MAX 255
+# undef CHAR_MIN
+# if __SCHAR_MAX__ == __INT_MAX__
+# define CHAR_MIN 0U
+# else
+# define CHAR_MIN 0
+# endif
+# undef CHAR_MAX
+# define CHAR_MAX UCHAR_MAX
#else
-#undef CHAR_MIN
-#define CHAR_MIN (-128)
-#undef CHAR_MAX
-#define CHAR_MAX 127
+# undef CHAR_MIN
+# define CHAR_MIN SCHAR_MIN
+# undef CHAR_MAX
+# define CHAR_MAX SCHAR_MAX
#endif
/* Minimum and maximum values a `signed short int' can hold. */
#undef SHRT_MIN
-/* For the sake of 16 bit hosts, we may not use -32768 */
-#define SHRT_MIN (-32767-1)
+#define SHRT_MIN (-SHRT_MAX - 1)
#undef SHRT_MAX
-#define SHRT_MAX 32767
+#define SHRT_MAX __SHRT_MAX__
/* Maximum value an `unsigned short int' can hold. (Minimum is 0). */
#undef USHRT_MAX
-#define USHRT_MAX 65535
+#if __SHRT_MAX__ == __INT_MAX__
+# define USHRT_MAX (SHRT_MAX * 2U + 1U)
+#else
+# define USHRT_MAX (SHRT_MAX * 2 + 1)
+#endif
/* Minimum and maximum values a `signed int' can hold. */
-#ifndef __INT_MAX__
-#define __INT_MAX__ 2147483647
-#endif
#undef INT_MIN
-#define INT_MIN (-INT_MAX-1)
+#define INT_MIN (-INT_MAX - 1)
#undef INT_MAX
#define INT_MAX __INT_MAX__
/* Maximum value an `unsigned int' can hold. (Minimum is 0). */
#undef UINT_MAX
-#define UINT_MAX (INT_MAX * 2U + 1)
+#define UINT_MAX (INT_MAX * 2U + 1U)
/* Minimum and maximum values a `signed long int' can hold.
(Same as `int'). */
-#ifndef __LONG_MAX__
-#if defined (__alpha__) || defined (__sparc_v9__) || defined (__sparcv9)
-#define __LONG_MAX__ 9223372036854775807L
-#else
-#define __LONG_MAX__ 2147483647L
-#endif /* __alpha__ || sparc64 */
-#endif
#undef LONG_MIN
-#define LONG_MIN (-LONG_MAX-1)
+#define LONG_MIN (-LONG_MAX - 1L)
#undef LONG_MAX
#define LONG_MAX __LONG_MAX__
/* Maximum value an `unsigned long int' can hold. (Minimum is 0). */
#undef ULONG_MAX
-#define ULONG_MAX (LONG_MAX * 2UL + 1)
+#define ULONG_MAX (LONG_MAX * 2UL + 1UL)
-#if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
/* Minimum and maximum values a `signed long long int' can hold. */
-#ifndef __LONG_LONG_MAX__
-#define __LONG_LONG_MAX__ 9223372036854775807LL
+# undef LLONG_MIN
+# define LLONG_MIN (-LLONG_MAX - 1LL)
+# undef LLONG_MAX
+# define LLONG_MAX __LONG_LONG_MAX__
+
+/* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
+# undef ULLONG_MAX
+# define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL)
#endif
-#undef LONG_LONG_MIN
-#define LONG_LONG_MIN (-LONG_LONG_MAX-1)
-#undef LONG_LONG_MAX
-#define LONG_LONG_MAX __LONG_LONG_MAX__
+
+#if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
+/* Minimum and maximum values a `signed long long int' can hold. */
+# undef LONG_LONG_MIN
+# define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
+# undef LONG_LONG_MAX
+# define LONG_LONG_MAX __LONG_LONG_MAX__
/* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
-#undef ULONG_LONG_MAX
-#define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1)
+# undef ULONG_LONG_MAX
+# define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1ULL)
+#endif
+
+#if (defined __STDC_WANT_IEC_60559_BFP_EXT__ \
+ || (defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L))
+/* TS 18661-1 / C2X widths of integer types. */
+# undef CHAR_WIDTH
+# define CHAR_WIDTH __SCHAR_WIDTH__
+# undef SCHAR_WIDTH
+# define SCHAR_WIDTH __SCHAR_WIDTH__
+# undef UCHAR_WIDTH
+# define UCHAR_WIDTH __SCHAR_WIDTH__
+# undef SHRT_WIDTH
+# define SHRT_WIDTH __SHRT_WIDTH__
+# undef USHRT_WIDTH
+# define USHRT_WIDTH __SHRT_WIDTH__
+# undef INT_WIDTH
+# define INT_WIDTH __INT_WIDTH__
+# undef UINT_WIDTH
+# define UINT_WIDTH __INT_WIDTH__
+# undef LONG_WIDTH
+# define LONG_WIDTH __LONG_WIDTH__
+# undef ULONG_WIDTH
+# define ULONG_WIDTH __LONG_WIDTH__
+# undef LLONG_WIDTH
+# define LLONG_WIDTH __LONG_LONG_WIDTH__
+# undef ULLONG_WIDTH
+# define ULLONG_WIDTH __LONG_LONG_WIDTH__
#endif
-#endif /* _MACH_MACHLIMITS_H_ */
#endif /* _LIMITS_H___ */