New upstream version 2.3.4
This commit is contained in:
parent
e7bdd1c6c6
commit
de72f6f588
556 changed files with 90432 additions and 53391 deletions
392
gl/intprops-internal.h
Normal file
392
gl/intprops-internal.h
Normal file
|
|
@ -0,0 +1,392 @@
|
|||
/* intprops-internal.h -- properties of integer types not visible to users
|
||||
|
||||
Copyright (C) 2001-2023 Free Software Foundation, Inc.
|
||||
|
||||
This program is free software: you can redistribute it and/or modify it
|
||||
under the terms of the GNU Lesser General Public License as published
|
||||
by the Free Software Foundation; either version 2.1 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program 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 Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
||||
|
||||
#ifndef _GL_INTPROPS_INTERNAL_H
|
||||
#define _GL_INTPROPS_INTERNAL_H
|
||||
|
||||
#include <limits.h>
|
||||
|
||||
/* Return a value with the common real type of E and V and the value of V.
|
||||
Do not evaluate E. */
|
||||
#define _GL_INT_CONVERT(e, v) ((1 ? 0 : (e)) + (v))
|
||||
|
||||
/* Act like _GL_INT_CONVERT (E, -V) but work around a bug in IRIX 6.5 cc; see
|
||||
<https://lists.gnu.org/r/bug-gnulib/2011-05/msg00406.html>. */
|
||||
#define _GL_INT_NEGATE_CONVERT(e, v) ((1 ? 0 : (e)) - (v))
|
||||
|
||||
/* The extra casts in the following macros work around compiler bugs,
|
||||
e.g., in Cray C 5.0.3.0. */
|
||||
|
||||
/* True if the real type T is signed. */
|
||||
#define _GL_TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
|
||||
|
||||
/* Return 1 if the real expression E, after promotion, has a
|
||||
signed or floating type. Do not evaluate E. */
|
||||
#define _GL_EXPR_SIGNED(e) (_GL_INT_NEGATE_CONVERT (e, 1) < 0)
|
||||
|
||||
|
||||
/* Minimum and maximum values for integer types and expressions. */
|
||||
|
||||
/* The width in bits of the integer type or expression T.
|
||||
Do not evaluate T. T must not be a bit-field expression.
|
||||
Padding bits are not supported; this is checked at compile-time below. */
|
||||
#define _GL_TYPE_WIDTH(t) (sizeof (t) * CHAR_BIT)
|
||||
|
||||
/* The maximum and minimum values for the type of the expression E,
|
||||
after integer promotion. E is not evaluated. */
|
||||
#define _GL_INT_MINIMUM(e) \
|
||||
(_GL_EXPR_SIGNED (e) \
|
||||
? ~ _GL_SIGNED_INT_MAXIMUM (e) \
|
||||
: _GL_INT_CONVERT (e, 0))
|
||||
#define _GL_INT_MAXIMUM(e) \
|
||||
(_GL_EXPR_SIGNED (e) \
|
||||
? _GL_SIGNED_INT_MAXIMUM (e) \
|
||||
: _GL_INT_NEGATE_CONVERT (e, 1))
|
||||
#define _GL_SIGNED_INT_MAXIMUM(e) \
|
||||
(((_GL_INT_CONVERT (e, 1) << (_GL_TYPE_WIDTH (+ (e)) - 2)) - 1) * 2 + 1)
|
||||
|
||||
/* Work around OpenVMS incompatibility with C99. */
|
||||
#if !defined LLONG_MAX && defined __INT64_MAX
|
||||
# define LLONG_MAX __INT64_MAX
|
||||
# define LLONG_MIN __INT64_MIN
|
||||
#endif
|
||||
|
||||
/* This include file assumes that signed types are two's complement without
|
||||
padding bits; the above macros have undefined behavior otherwise.
|
||||
If this is a problem for you, please let us know how to fix it for your host.
|
||||
This assumption is tested by the intprops-tests module. */
|
||||
|
||||
/* Does the __typeof__ keyword work? This could be done by
|
||||
'configure', but for now it's easier to do it by hand. */
|
||||
#if (2 <= __GNUC__ \
|
||||
|| (4 <= __clang_major__) \
|
||||
|| (1210 <= __IBMC__ && defined __IBM__TYPEOF__) \
|
||||
|| (0x5110 <= __SUNPRO_C && !__STDC__))
|
||||
# define _GL_HAVE___TYPEOF__ 1
|
||||
#else
|
||||
# define _GL_HAVE___TYPEOF__ 0
|
||||
#endif
|
||||
|
||||
/* Return 1 if the integer type or expression T might be signed. Return 0
|
||||
if it is definitely unsigned. T must not be a bit-field expression.
|
||||
This macro does not evaluate its argument, and expands to an
|
||||
integer constant expression. */
|
||||
#if _GL_HAVE___TYPEOF__
|
||||
# define _GL_SIGNED_TYPE_OR_EXPR(t) _GL_TYPE_SIGNED (__typeof__ (t))
|
||||
#else
|
||||
# define _GL_SIGNED_TYPE_OR_EXPR(t) 1
|
||||
#endif
|
||||
|
||||
/* Return 1 if - A would overflow in [MIN,MAX] arithmetic.
|
||||
A should not have side effects, and A's type should be an
|
||||
integer with minimum value MIN and maximum MAX. */
|
||||
#define _GL_INT_NEGATE_RANGE_OVERFLOW(a, min, max) \
|
||||
((min) < 0 ? (a) < - (max) : 0 < (a))
|
||||
|
||||
/* True if __builtin_add_overflow (A, B, P) and __builtin_sub_overflow
|
||||
(A, B, P) work when P is non-null. */
|
||||
#ifdef __EDG__
|
||||
/* EDG-based compilers like nvc 22.1 cannot add 64-bit signed to unsigned
|
||||
<https://bugs.gnu.org/53256>. */
|
||||
# define _GL_HAS_BUILTIN_ADD_OVERFLOW 0
|
||||
#elif defined __has_builtin
|
||||
# define _GL_HAS_BUILTIN_ADD_OVERFLOW __has_builtin (__builtin_add_overflow)
|
||||
/* __builtin_{add,sub}_overflow exists but is not reliable in GCC 5.x and 6.x,
|
||||
see <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269>. */
|
||||
#elif 7 <= __GNUC__
|
||||
# define _GL_HAS_BUILTIN_ADD_OVERFLOW 1
|
||||
#else
|
||||
# define _GL_HAS_BUILTIN_ADD_OVERFLOW 0
|
||||
#endif
|
||||
|
||||
/* True if __builtin_mul_overflow (A, B, P) works when P is non-null. */
|
||||
#if defined __clang_major__ && __clang_major__ < 14
|
||||
/* Work around Clang bug <https://bugs.llvm.org/show_bug.cgi?id=16404>. */
|
||||
# define _GL_HAS_BUILTIN_MUL_OVERFLOW 0
|
||||
#else
|
||||
# define _GL_HAS_BUILTIN_MUL_OVERFLOW _GL_HAS_BUILTIN_ADD_OVERFLOW
|
||||
#endif
|
||||
|
||||
/* True if __builtin_add_overflow_p (A, B, C) works, and similarly for
|
||||
__builtin_sub_overflow_p and __builtin_mul_overflow_p. */
|
||||
#ifdef __EDG__
|
||||
/* In EDG-based compilers like ICC 2021.3 and earlier,
|
||||
__builtin_add_overflow_p etc. are not treated as integral constant
|
||||
expressions even when all arguments are. */
|
||||
# define _GL_HAS_BUILTIN_OVERFLOW_P 0
|
||||
#elif defined __has_builtin
|
||||
# define _GL_HAS_BUILTIN_OVERFLOW_P __has_builtin (__builtin_mul_overflow_p)
|
||||
#else
|
||||
# define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__)
|
||||
#endif
|
||||
|
||||
#if (!defined _GL_STDCKDINT_H && 202311 <= __STDC_VERSION__ \
|
||||
&& ! (_GL_HAS_BUILTIN_ADD_OVERFLOW && _GL_HAS_BUILTIN_MUL_OVERFLOW))
|
||||
# include <stdckdint.h>
|
||||
#endif
|
||||
|
||||
/* Store the low-order bits of A + B, A - B, A * B, respectively, into *R.
|
||||
Return 1 if the result overflows. Arguments should not have side
|
||||
effects and A, B and *R can be of any integer type other than char,
|
||||
bool, a bit-precise integer type, or an enumeration type. */
|
||||
#if _GL_HAS_BUILTIN_ADD_OVERFLOW
|
||||
# define _GL_INT_ADD_WRAPV(a, b, r) __builtin_add_overflow (a, b, r)
|
||||
# define _GL_INT_SUBTRACT_WRAPV(a, b, r) __builtin_sub_overflow (a, b, r)
|
||||
#elif defined ckd_add && defined ckd_sub && !defined _GL_STDCKDINT_H
|
||||
# define _GL_INT_ADD_WRAPV(a, b, r) ckd_add (r, + (a), + (b))
|
||||
# define _GL_INT_SUBTRACT_WRAPV(a, b, r) ckd_sub (r, + (a), + (b))
|
||||
#else
|
||||
# define _GL_INT_ADD_WRAPV(a, b, r) \
|
||||
_GL_INT_OP_WRAPV (a, b, r, +, _GL_INT_ADD_RANGE_OVERFLOW)
|
||||
# define _GL_INT_SUBTRACT_WRAPV(a, b, r) \
|
||||
_GL_INT_OP_WRAPV (a, b, r, -, _GL_INT_SUBTRACT_RANGE_OVERFLOW)
|
||||
#endif
|
||||
#if _GL_HAS_BUILTIN_MUL_OVERFLOW
|
||||
# if ((9 < __GNUC__ + (3 <= __GNUC_MINOR__) \
|
||||
|| (__GNUC__ == 8 && 4 <= __GNUC_MINOR__)) \
|
||||
&& !defined __EDG__)
|
||||
# define _GL_INT_MULTIPLY_WRAPV(a, b, r) __builtin_mul_overflow (a, b, r)
|
||||
# else
|
||||
/* Work around GCC bug 91450. */
|
||||
# define _GL_INT_MULTIPLY_WRAPV(a, b, r) \
|
||||
((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && _GL_EXPR_SIGNED (a) && _GL_EXPR_SIGNED (b) \
|
||||
&& _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \
|
||||
? ((void) __builtin_mul_overflow (a, b, r), 1) \
|
||||
: __builtin_mul_overflow (a, b, r))
|
||||
# endif
|
||||
#elif defined ckd_mul && !defined _GL_STDCKDINT_H
|
||||
# define _GL_INT_MULTIPLY_WRAPV(a, b, r) ckd_mul (r, + (a), + (b))
|
||||
#else
|
||||
# define _GL_INT_MULTIPLY_WRAPV(a, b, r) \
|
||||
_GL_INT_OP_WRAPV (a, b, r, *, _GL_INT_MULTIPLY_RANGE_OVERFLOW)
|
||||
#endif
|
||||
|
||||
/* Nonzero if this compiler has GCC bug 68193 or Clang bug 25390. See:
|
||||
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68193
|
||||
https://llvm.org/bugs/show_bug.cgi?id=25390
|
||||
For now, assume all versions of GCC-like compilers generate bogus
|
||||
warnings for _Generic. This matters only for compilers that
|
||||
lack relevant builtins. */
|
||||
#if __GNUC__ || defined __clang__
|
||||
# define _GL__GENERIC_BOGUS 1
|
||||
#else
|
||||
# define _GL__GENERIC_BOGUS 0
|
||||
#endif
|
||||
|
||||
/* Store the low-order bits of A <op> B into *R, where OP specifies
|
||||
the operation and OVERFLOW the overflow predicate. Return 1 if the
|
||||
result overflows. Arguments should not have side effects,
|
||||
and A, B and *R can be of any integer type other than char, bool, a
|
||||
bit-precise integer type, or an enumeration type. */
|
||||
#if 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS
|
||||
# define _GL_INT_OP_WRAPV(a, b, r, op, overflow) \
|
||||
(_Generic \
|
||||
(*(r), \
|
||||
signed char: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
|
||||
signed char, SCHAR_MIN, SCHAR_MAX), \
|
||||
unsigned char: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
|
||||
unsigned char, 0, UCHAR_MAX), \
|
||||
short int: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
|
||||
short int, SHRT_MIN, SHRT_MAX), \
|
||||
unsigned short int: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
|
||||
unsigned short int, 0, USHRT_MAX), \
|
||||
int: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
|
||||
int, INT_MIN, INT_MAX), \
|
||||
unsigned int: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
|
||||
unsigned int, 0, UINT_MAX), \
|
||||
long int: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
|
||||
long int, LONG_MIN, LONG_MAX), \
|
||||
unsigned long int: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
|
||||
unsigned long int, 0, ULONG_MAX), \
|
||||
long long int: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
|
||||
long long int, LLONG_MIN, LLONG_MAX), \
|
||||
unsigned long long int: \
|
||||
_GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
|
||||
unsigned long long int, 0, ULLONG_MAX)))
|
||||
#else
|
||||
/* Store the low-order bits of A <op> B into *R, where OP specifies
|
||||
the operation and OVERFLOW the overflow predicate. If *R is
|
||||
signed, its type is ST with bounds SMIN..SMAX; otherwise its type
|
||||
is UT with bounds U..UMAX. ST and UT are narrower than int.
|
||||
Return 1 if the result overflows. Arguments should not have side
|
||||
effects, and A, B and *R can be of any integer type other than
|
||||
char, bool, a bit-precise integer type, or an enumeration type. */
|
||||
# if _GL_HAVE___TYPEOF__
|
||||
# define _GL_INT_OP_WRAPV_SMALLISH(a,b,r,op,overflow,st,smin,smax,ut,umax) \
|
||||
(_GL_TYPE_SIGNED (__typeof__ (*(r))) \
|
||||
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, st, smin, smax) \
|
||||
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, ut, 0, umax))
|
||||
# else
|
||||
# define _GL_INT_OP_WRAPV_SMALLISH(a,b,r,op,overflow,st,smin,smax,ut,umax) \
|
||||
(overflow (a, b, smin, smax) \
|
||||
? (overflow (a, b, 0, umax) \
|
||||
? (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st), 1) \
|
||||
: (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st)) < 0) \
|
||||
: (overflow (a, b, 0, umax) \
|
||||
? (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st)) >= 0 \
|
||||
: (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st), 0)))
|
||||
# endif
|
||||
|
||||
# define _GL_INT_OP_WRAPV(a, b, r, op, overflow) \
|
||||
(sizeof *(r) == sizeof (signed char) \
|
||||
? _GL_INT_OP_WRAPV_SMALLISH (a, b, r, op, overflow, \
|
||||
signed char, SCHAR_MIN, SCHAR_MAX, \
|
||||
unsigned char, UCHAR_MAX) \
|
||||
: sizeof *(r) == sizeof (short int) \
|
||||
? _GL_INT_OP_WRAPV_SMALLISH (a, b, r, op, overflow, \
|
||||
short int, SHRT_MIN, SHRT_MAX, \
|
||||
unsigned short int, USHRT_MAX) \
|
||||
: sizeof *(r) == sizeof (int) \
|
||||
? (_GL_EXPR_SIGNED (*(r)) \
|
||||
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
|
||||
int, INT_MIN, INT_MAX) \
|
||||
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned int, \
|
||||
unsigned int, 0, UINT_MAX)) \
|
||||
: _GL_INT_OP_WRAPV_LONGISH(a, b, r, op, overflow))
|
||||
# ifdef LLONG_MAX
|
||||
# define _GL_INT_OP_WRAPV_LONGISH(a, b, r, op, overflow) \
|
||||
(sizeof *(r) == sizeof (long int) \
|
||||
? (_GL_EXPR_SIGNED (*(r)) \
|
||||
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
|
||||
long int, LONG_MIN, LONG_MAX) \
|
||||
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
|
||||
unsigned long int, 0, ULONG_MAX)) \
|
||||
: (_GL_EXPR_SIGNED (*(r)) \
|
||||
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
|
||||
long long int, LLONG_MIN, LLONG_MAX) \
|
||||
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long long int, \
|
||||
unsigned long long int, 0, ULLONG_MAX)))
|
||||
# else
|
||||
# define _GL_INT_OP_WRAPV_LONGISH(a, b, r, op, overflow) \
|
||||
(_GL_EXPR_SIGNED (*(r)) \
|
||||
? _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
|
||||
long int, LONG_MIN, LONG_MAX) \
|
||||
: _GL_INT_OP_CALC (a, b, r, op, overflow, unsigned long int, \
|
||||
unsigned long int, 0, ULONG_MAX))
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* Store the low-order bits of A <op> B into *R, where the operation
|
||||
is given by OP. Use the unsigned type UT for calculation to avoid
|
||||
overflow problems. *R's type is T, with extrema TMIN and TMAX.
|
||||
T can be any signed integer type other than char, bool, a
|
||||
bit-precise integer type, or an enumeration type.
|
||||
Return 1 if the result overflows. */
|
||||
#define _GL_INT_OP_CALC(a, b, r, op, overflow, ut, t, tmin, tmax) \
|
||||
(overflow (a, b, tmin, tmax) \
|
||||
? (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a, b, op, ut, t), 1) \
|
||||
: (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a, b, op, ut, t), 0))
|
||||
|
||||
/* Return 1 if the integer expressions A - B and -A would overflow,
|
||||
respectively. Arguments should not have side effects,
|
||||
and can be any signed integer type other than char, bool, a
|
||||
bit-precise integer type, or an enumeration type.
|
||||
These macros are tuned for their last input argument being a constant. */
|
||||
|
||||
#if _GL_HAS_BUILTIN_OVERFLOW_P
|
||||
# define _GL_INT_NEGATE_OVERFLOW(a) \
|
||||
__builtin_sub_overflow_p (0, a, (__typeof__ (- (a))) 0)
|
||||
#else
|
||||
# define _GL_INT_NEGATE_OVERFLOW(a) \
|
||||
_GL_INT_NEGATE_RANGE_OVERFLOW (a, _GL_INT_MINIMUM (a), _GL_INT_MAXIMUM (a))
|
||||
#endif
|
||||
|
||||
/* Return the low-order bits of A <op> B, where the operation is given
|
||||
by OP. Use the unsigned type UT for calculation to avoid undefined
|
||||
behavior on signed integer overflow, and convert the result to type T.
|
||||
UT is at least as wide as T and is no narrower than unsigned int,
|
||||
T is two's complement, and there is no padding or trap representations.
|
||||
Assume that converting UT to T yields the low-order bits, as is
|
||||
done in all known two's-complement C compilers. E.g., see:
|
||||
https://gcc.gnu.org/onlinedocs/gcc/Integers-implementation.html
|
||||
|
||||
According to the C standard, converting UT to T yields an
|
||||
implementation-defined result or signal for values outside T's
|
||||
range. However, code that works around this theoretical problem
|
||||
runs afoul of a compiler bug in Oracle Studio 12.3 x86. See:
|
||||
https://lists.gnu.org/r/bug-gnulib/2017-04/msg00049.html
|
||||
As the compiler bug is real, don't try to work around the
|
||||
theoretical problem. */
|
||||
|
||||
#define _GL_INT_OP_WRAPV_VIA_UNSIGNED(a, b, op, ut, t) \
|
||||
((t) ((ut) (a) op (ut) (b)))
|
||||
|
||||
/* Return true if the numeric values A + B, A - B, A * B fall outside
|
||||
the range TMIN..TMAX. Arguments should not have side effects
|
||||
and can be any integer type other than char, bool,
|
||||
a bit-precise integer type, or an enumeration type.
|
||||
TMIN should be signed and nonpositive.
|
||||
TMAX should be positive, and should be signed unless TMIN is zero. */
|
||||
#define _GL_INT_ADD_RANGE_OVERFLOW(a, b, tmin, tmax) \
|
||||
((b) < 0 \
|
||||
? (((tmin) \
|
||||
? ((_GL_EXPR_SIGNED (_GL_INT_CONVERT (a, (tmin) - (b))) || (b) < (tmin)) \
|
||||
&& (a) < (tmin) - (b)) \
|
||||
: (a) <= -1 - (b)) \
|
||||
|| ((_GL_EXPR_SIGNED (a) ? 0 <= (a) : (tmax) < (a)) && (tmax) < (a) + (b))) \
|
||||
: (a) < 0 \
|
||||
? (((tmin) \
|
||||
? ((_GL_EXPR_SIGNED (_GL_INT_CONVERT (b, (tmin) - (a))) || (a) < (tmin)) \
|
||||
&& (b) < (tmin) - (a)) \
|
||||
: (b) <= -1 - (a)) \
|
||||
|| ((_GL_EXPR_SIGNED (_GL_INT_CONVERT (a, b)) || (tmax) < (b)) \
|
||||
&& (tmax) < (a) + (b))) \
|
||||
: (tmax) < (b) || (tmax) - (b) < (a))
|
||||
#define _GL_INT_SUBTRACT_RANGE_OVERFLOW(a, b, tmin, tmax) \
|
||||
(((a) < 0) == ((b) < 0) \
|
||||
? ((a) < (b) \
|
||||
? !(tmin) || -1 - (tmin) < (b) - (a) - 1 \
|
||||
: (tmax) < (a) - (b)) \
|
||||
: (a) < 0 \
|
||||
? ((!_GL_EXPR_SIGNED (_GL_INT_CONVERT ((a) - (tmin), b)) && (a) - (tmin) < 0) \
|
||||
|| (a) - (tmin) < (b)) \
|
||||
: ((! (_GL_EXPR_SIGNED (_GL_INT_CONVERT (tmax, b)) \
|
||||
&& _GL_EXPR_SIGNED (_GL_INT_CONVERT ((tmax) + (b), a))) \
|
||||
&& (tmax) <= -1 - (b)) \
|
||||
|| (tmax) + (b) < (a)))
|
||||
#define _GL_INT_MULTIPLY_RANGE_OVERFLOW(a, b, tmin, tmax) \
|
||||
((b) < 0 \
|
||||
? ((a) < 0 \
|
||||
? (_GL_EXPR_SIGNED (_GL_INT_CONVERT (tmax, b)) \
|
||||
? (a) < (tmax) / (b) \
|
||||
: ((_GL_INT_NEGATE_OVERFLOW (b) \
|
||||
? _GL_INT_CONVERT (b, tmax) >> (_GL_TYPE_WIDTH (+ (b)) - 1) \
|
||||
: (tmax) / -(b)) \
|
||||
<= -1 - (a))) \
|
||||
: _GL_INT_NEGATE_OVERFLOW (_GL_INT_CONVERT (b, tmin)) && (b) == -1 \
|
||||
? (_GL_EXPR_SIGNED (a) \
|
||||
? 0 < (a) + (tmin) \
|
||||
: 0 < (a) && -1 - (tmin) < (a) - 1) \
|
||||
: (tmin) / (b) < (a)) \
|
||||
: (b) == 0 \
|
||||
? 0 \
|
||||
: ((a) < 0 \
|
||||
? (_GL_INT_NEGATE_OVERFLOW (_GL_INT_CONVERT (a, tmin)) && (a) == -1 \
|
||||
? (_GL_EXPR_SIGNED (b) ? 0 < (b) + (tmin) : -1 - (tmin) < (b) - 1) \
|
||||
: (tmin) / (a) < (b)) \
|
||||
: (tmax) / (b) < (a)))
|
||||
|
||||
#endif /* _GL_INTPROPS_INTERNAL_H */
|
||||
Loading…
Add table
Add a link
Reference in a new issue