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/* ISO C23 Standard: 7.18 - Bit and byte utilities <stdbit.h>.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library 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.
The GNU C Library 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 the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _STDBIT_H
#define _STDBIT_H 1
#include <features.h>
#include <bits/endian.h>
#include <bits/stdint-intn.h>
#include <bits/stdint-uintn.h>
#include <bits/stdint-least.h>
/* In C23, <stdbool.h> defines only an implementation-namespace macro,
so is OK to include here. Before C23, including <stdbool.h> allows
the header to use bool rather than _Bool unconditionally, and so to
compile as C++ (although the type-generic macros are not a good
form of type-generic interface for C++). */
#include <stdbool.h>
#define __need_size_t
#include <stddef.h>
#define __STDC_VERSION_STDBIT_H__ 202311L
#define __STDC_ENDIAN_LITTLE__ __LITTLE_ENDIAN
#define __STDC_ENDIAN_BIG__ __BIG_ENDIAN
#define __STDC_ENDIAN_NATIVE__ __BYTE_ORDER
__BEGIN_DECLS
/* Use __pacify_uint16 (N) instead of (uint16_t) (N) when the cast is helpful
only to pacify older GCC (e.g., GCC 10 -Wconversion) or non-GCC (e.g
clang -Wimplicit-int-conversion). */
#if __GNUC_PREREQ (11, 0)
# define __pacify_uint8(n) (n)
# define __pacify_uint16(n) (n)
#else
# define __pacify_uint8(n) ((uint8_t) (n))
# define __pacify_uint16(n) ((uint16_t) (n))
#endif
/* Count leading zeros. */
extern unsigned int stdc_leading_zeros_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_leading_zeros_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_leading_zeros_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_leading_zeros_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_leading_zeros_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_leading_zeros)
# define stdc_leading_zeros(x) (__builtin_stdc_leading_zeros (x))
#else
# define stdc_leading_zeros(x) \
(stdc_leading_zeros_ull (x) \
- (unsigned int) (8 * (sizeof (0ULL) - sizeof (x))))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
__clz64_inline (uint64_t __x)
{
return __x == 0 ? 64U : (unsigned int) __builtin_clzll (__x);
}
static __always_inline unsigned int
__clz32_inline (uint32_t __x)
{
return __x == 0 ? 32U : (unsigned int) __builtin_clz (__x);
}
static __always_inline unsigned int
__clz16_inline (uint16_t __x)
{
return __clz32_inline (__x) - 16;
}
static __always_inline unsigned int
__clz8_inline (uint8_t __x)
{
return __clz32_inline (__x) - 24;
}
# define stdc_leading_zeros_uc(x) (__clz8_inline (x))
# define stdc_leading_zeros_us(x) (__clz16_inline (x))
# define stdc_leading_zeros_ui(x) (__clz32_inline (x))
# if __WORDSIZE == 64
# define stdc_leading_zeros_ul(x) (__clz64_inline (x))
# else
# define stdc_leading_zeros_ul(x) (__clz32_inline (x))
# endif
# define stdc_leading_zeros_ull(x) (__clz64_inline (x))
#endif
/* Count leading ones. */
extern unsigned int stdc_leading_ones_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_leading_ones_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_leading_ones_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_leading_ones_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_leading_ones_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_leading_ones)
# define stdc_leading_ones(x) (__builtin_stdc_leading_ones (x))
#else
# define stdc_leading_ones(x) \
(stdc_leading_ones_ull ((unsigned long long int) (x) \
<< 8 * (sizeof (0ULL) - sizeof (x))))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
__clo64_inline (uint64_t __x)
{
return __clz64_inline (~__x);
}
static __always_inline unsigned int
__clo32_inline (uint32_t __x)
{
return __clz32_inline (~__x);
}
static __always_inline unsigned int
__clo16_inline (uint16_t __x)
{
return __clz16_inline (__pacify_uint16 (~__x));
}
static __always_inline unsigned int
__clo8_inline (uint8_t __x)
{
return __clz8_inline (__pacify_uint8 (~__x));
}
# define stdc_leading_ones_uc(x) (__clo8_inline (x))
# define stdc_leading_ones_us(x) (__clo16_inline (x))
# define stdc_leading_ones_ui(x) (__clo32_inline (x))
# if __WORDSIZE == 64
# define stdc_leading_ones_ul(x) (__clo64_inline (x))
# else
# define stdc_leading_ones_ul(x) (__clo32_inline (x))
# endif
# define stdc_leading_ones_ull(x) (__clo64_inline (x))
#endif
/* Count trailing zeros. */
extern unsigned int stdc_trailing_zeros_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_trailing_zeros_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_trailing_zeros_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_trailing_zeros_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_trailing_zeros_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_trailing_zeros)
# define stdc_trailing_zeros(x) (__builtin_stdc_trailing_zeros (x))
#else
# define stdc_trailing_zeros(x) \
(sizeof (x) == 8 ? stdc_trailing_zeros_ull (x) \
: sizeof (x) == 4 ? stdc_trailing_zeros_ui (x) \
: sizeof (x) == 2 ? stdc_trailing_zeros_us (__pacify_uint16 (x)) \
: stdc_trailing_zeros_uc (__pacify_uint8 (x)))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_ctzll)
static __always_inline unsigned int
__ctz64_inline (uint64_t __x)
{
return __x == 0 ? 64U : (unsigned int) __builtin_ctzll (__x);
}
static __always_inline unsigned int
__ctz32_inline (uint32_t __x)
{
return __x == 0 ? 32U : (unsigned int) __builtin_ctz (__x);
}
static __always_inline unsigned int
__ctz16_inline (uint16_t __x)
{
return __x == 0 ? 16U : (unsigned int) __builtin_ctz (__x);
}
static __always_inline unsigned int
__ctz8_inline (uint8_t __x)
{
return __x == 0 ? 8U : (unsigned int) __builtin_ctz (__x);
}
# define stdc_trailing_zeros_uc(x) (__ctz8_inline (x))
# define stdc_trailing_zeros_us(x) (__ctz16_inline (x))
# define stdc_trailing_zeros_ui(x) (__ctz32_inline (x))
# if __WORDSIZE == 64
# define stdc_trailing_zeros_ul(x) (__ctz64_inline (x))
# else
# define stdc_trailing_zeros_ul(x) (__ctz32_inline (x))
# endif
# define stdc_trailing_zeros_ull(x) (__ctz64_inline (x))
#endif
/* Count trailing ones. */
extern unsigned int stdc_trailing_ones_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_trailing_ones_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_trailing_ones_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_trailing_ones_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_trailing_ones_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_trailing_ones)
# define stdc_trailing_ones(x) (__builtin_stdc_trailing_ones (x))
#else
# define stdc_trailing_ones(x) (stdc_trailing_ones_ull (x))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_ctzll)
static __always_inline unsigned int
__cto64_inline (uint64_t __x)
{
return __ctz64_inline (~__x);
}
static __always_inline unsigned int
__cto32_inline (uint32_t __x)
{
return __ctz32_inline (~__x);
}
static __always_inline unsigned int
__cto16_inline (uint16_t __x)
{
return __ctz16_inline (__pacify_uint16 (~__x));
}
static __always_inline unsigned int
__cto8_inline (uint8_t __x)
{
return __ctz8_inline (__pacify_uint8 (~__x));
}
# define stdc_trailing_ones_uc(x) (__cto8_inline (x))
# define stdc_trailing_ones_us(x) (__cto16_inline (x))
# define stdc_trailing_ones_ui(x) (__cto32_inline (x))
# if __WORDSIZE == 64
# define stdc_trailing_ones_ul(x) (__cto64_inline (x))
# else
# define stdc_trailing_ones_ul(x) (__cto32_inline (x))
# endif
# define stdc_trailing_ones_ull(x) (__cto64_inline (x))
#endif
/* First leading zero. */
extern unsigned int stdc_first_leading_zero_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_leading_zero_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_leading_zero_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_leading_zero_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_first_leading_zero_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_first_leading_zero)
# define stdc_first_leading_zero(x) (__builtin_stdc_first_leading_zero (x))
#else
# define stdc_first_leading_zero(x) \
(sizeof (x) == 8 ? stdc_first_leading_zero_ull (x) \
: sizeof (x) == 4 ? stdc_first_leading_zero_ui (x) \
: sizeof (x) == 2 ? stdc_first_leading_zero_us (__pacify_uint16 (x)) \
: stdc_first_leading_zero_uc (__pacify_uint8 (x)))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
__flz64_inline (uint64_t __x)
{
return __x == (uint64_t) -1 ? 0 : 1 + __clo64_inline (__x);
}
static __always_inline unsigned int
__flz32_inline (uint32_t __x)
{
return __x == (uint32_t) -1 ? 0 : 1 + __clo32_inline (__x);
}
static __always_inline unsigned int
__flz16_inline (uint16_t __x)
{
return __x == (uint16_t) -1 ? 0 : 1 + __clo16_inline (__x);
}
static __always_inline unsigned int
__flz8_inline (uint8_t __x)
{
return __x == (uint8_t) -1 ? 0 : 1 + __clo8_inline (__x);
}
# define stdc_first_leading_zero_uc(x) (__flz8_inline (x))
# define stdc_first_leading_zero_us(x) (__flz16_inline (x))
# define stdc_first_leading_zero_ui(x) (__flz32_inline (x))
# if __WORDSIZE == 64
# define stdc_first_leading_zero_ul(x) (__flz64_inline (x))
# else
# define stdc_first_leading_zero_ul(x) (__flz32_inline (x))
# endif
# define stdc_first_leading_zero_ull(x) (__flz64_inline (x))
#endif
/* First leading one. */
extern unsigned int stdc_first_leading_one_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_leading_one_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_leading_one_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_leading_one_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_first_leading_one_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_first_leading_one)
# define stdc_first_leading_one(x) (__builtin_stdc_first_leading_one (x))
#else
# define stdc_first_leading_one(x) \
(sizeof (x) == 8 ? stdc_first_leading_one_ull (x) \
: sizeof (x) == 4 ? stdc_first_leading_one_ui (x) \
: sizeof (x) == 2 ? stdc_first_leading_one_us (__pacify_uint16 (x)) \
: stdc_first_leading_one_uc (__pacify_uint8 (x)))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
__flo64_inline (uint64_t __x)
{
return __x == 0 ? 0 : 1 + __clz64_inline (__x);
}
static __always_inline unsigned int
__flo32_inline (uint32_t __x)
{
return __x == 0 ? 0 : 1 + __clz32_inline (__x);
}
static __always_inline unsigned int
__flo16_inline (uint16_t __x)
{
return __x == 0 ? 0 : 1 + __clz16_inline (__x);
}
static __always_inline unsigned int
__flo8_inline (uint8_t __x)
{
return __x == 0 ? 0 : 1 + __clz8_inline (__x);
}
# define stdc_first_leading_one_uc(x) (__flo8_inline (x))
# define stdc_first_leading_one_us(x) (__flo16_inline (x))
# define stdc_first_leading_one_ui(x) (__flo32_inline (x))
# if __WORDSIZE == 64
# define stdc_first_leading_one_ul(x) (__flo64_inline (x))
# else
# define stdc_first_leading_one_ul(x) (__flo32_inline (x))
# endif
# define stdc_first_leading_one_ull(x) (__flo64_inline (x))
#endif
/* First trailing zero. */
extern unsigned int stdc_first_trailing_zero_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_trailing_zero_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_trailing_zero_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_trailing_zero_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_first_trailing_zero_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_first_trailing_zero)
# define stdc_first_trailing_zero(x) (__builtin_stdc_first_trailing_zero (x))
#else
# define stdc_first_trailing_zero(x) \
(sizeof (x) == 8 ? stdc_first_trailing_zero_ull (x) \
: sizeof (x) == 4 ? stdc_first_trailing_zero_ui (x) \
: sizeof (x) == 2 ? stdc_first_trailing_zero_us (__pacify_uint16 (x)) \
: stdc_first_trailing_zero_uc (__pacify_uint8 (x)))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_ctzll)
static __always_inline unsigned int
__ftz64_inline (uint64_t __x)
{
return __x == (uint64_t) -1 ? 0 : 1 + __cto64_inline (__x);
}
static __always_inline unsigned int
__ftz32_inline (uint32_t __x)
{
return __x == (uint32_t) -1 ? 0 : 1 + __cto32_inline (__x);
}
static __always_inline unsigned int
__ftz16_inline (uint16_t __x)
{
return __x == (uint16_t) -1 ? 0 : 1 + __cto16_inline (__x);
}
static __always_inline unsigned int
__ftz8_inline (uint8_t __x)
{
return __x == (uint8_t) -1 ? 0 : 1 + __cto8_inline (__x);
}
# define stdc_first_trailing_zero_uc(x) (__ftz8_inline (x))
# define stdc_first_trailing_zero_us(x) (__ftz16_inline (x))
# define stdc_first_trailing_zero_ui(x) (__ftz32_inline (x))
# if __WORDSIZE == 64
# define stdc_first_trailing_zero_ul(x) (__ftz64_inline (x))
# else
# define stdc_first_trailing_zero_ul(x) (__ftz32_inline (x))
# endif
# define stdc_first_trailing_zero_ull(x) (__ftz64_inline (x))
#endif
/* First trailing one. */
extern unsigned int stdc_first_trailing_one_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_trailing_one_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_trailing_one_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_first_trailing_one_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_first_trailing_one_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_first_trailing_one)
# define stdc_first_trailing_one(x) (__builtin_stdc_first_trailing_one (x))
#else
# define stdc_first_trailing_one(x) \
(sizeof (x) == 8 ? stdc_first_trailing_one_ull (x) \
: sizeof (x) == 4 ? stdc_first_trailing_one_ui (x) \
: sizeof (x) == 2 ? stdc_first_trailing_one_us (__pacify_uint16 (x)) \
: stdc_first_trailing_one_uc (__pacify_uint8 (x)))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_ctzll)
static __always_inline unsigned int
__fto64_inline (uint64_t __x)
{
return __x == 0 ? 0 : 1 + __ctz64_inline (__x);
}
static __always_inline unsigned int
__fto32_inline (uint32_t __x)
{
return __x == 0 ? 0 : 1 + __ctz32_inline (__x);
}
static __always_inline unsigned int
__fto16_inline (uint16_t __x)
{
return __x == 0 ? 0 : 1 + __ctz16_inline (__x);
}
static __always_inline unsigned int
__fto8_inline (uint8_t __x)
{
return __x == 0 ? 0 : 1 + __ctz8_inline (__x);
}
# define stdc_first_trailing_one_uc(x) (__fto8_inline (x))
# define stdc_first_trailing_one_us(x) (__fto16_inline (x))
# define stdc_first_trailing_one_ui(x) (__fto32_inline (x))
# if __WORDSIZE == 64
# define stdc_first_trailing_one_ul(x) (__fto64_inline (x))
# else
# define stdc_first_trailing_one_ul(x) (__fto32_inline (x))
# endif
# define stdc_first_trailing_one_ull(x) (__fto64_inline (x))
#endif
/* Count zeros. */
extern unsigned int stdc_count_zeros_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_count_zeros_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_count_zeros_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_count_zeros_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_count_zeros_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_count_zeros)
# define stdc_count_zeros(x) (__builtin_stdc_count_zeros (x))
#else
# define stdc_count_zeros(x) \
(stdc_count_zeros_ull (x) \
- (unsigned int) (8 * (sizeof (0ULL) - sizeof (x))))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_popcountll)
static __always_inline unsigned int
__cz64_inline (uint64_t __x)
{
return 64U - (unsigned int) __builtin_popcountll (__x);
}
static __always_inline unsigned int
__cz32_inline (uint32_t __x)
{
return 32U - (unsigned int) __builtin_popcount (__x);
}
static __always_inline unsigned int
__cz16_inline (uint16_t __x)
{
return 16U - (unsigned int) __builtin_popcount (__x);
}
static __always_inline unsigned int
__cz8_inline (uint8_t __x)
{
return 8U - (unsigned int) __builtin_popcount (__x);
}
# define stdc_count_zeros_uc(x) (__cz8_inline (x))
# define stdc_count_zeros_us(x) (__cz16_inline (x))
# define stdc_count_zeros_ui(x) (__cz32_inline (x))
# if __WORDSIZE == 64
# define stdc_count_zeros_ul(x) (__cz64_inline (x))
# else
# define stdc_count_zeros_ul(x) (__cz32_inline (x))
# endif
# define stdc_count_zeros_ull(x) (__cz64_inline (x))
#endif
/* Count ones. */
extern unsigned int stdc_count_ones_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_count_ones_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_count_ones_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_count_ones_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_count_ones_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_count_ones)
# define stdc_count_ones(x) (__builtin_stdc_count_ones (x))
#else
# define stdc_count_ones(x) (stdc_count_ones_ull (x))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_popcountll)
static __always_inline unsigned int
__co64_inline (uint64_t __x)
{
return (unsigned int) __builtin_popcountll (__x);
}
static __always_inline unsigned int
__co32_inline (uint32_t __x)
{
return (unsigned int) __builtin_popcount (__x);
}
static __always_inline unsigned int
__co16_inline (uint16_t __x)
{
return (unsigned int) __builtin_popcount (__x);
}
static __always_inline unsigned int
__co8_inline (uint8_t __x)
{
return (unsigned int) __builtin_popcount (__x);
}
# define stdc_count_ones_uc(x) (__co8_inline (x))
# define stdc_count_ones_us(x) (__co16_inline (x))
# define stdc_count_ones_ui(x) (__co32_inline (x))
# if __WORDSIZE == 64
# define stdc_count_ones_ul(x) (__co64_inline (x))
# else
# define stdc_count_ones_ul(x) (__co32_inline (x))
# endif
# define stdc_count_ones_ull(x) (__co64_inline (x))
#endif
/* Single-bit check. */
extern bool stdc_has_single_bit_uc (unsigned char __x)
__THROW __attribute_const__;
extern bool stdc_has_single_bit_us (unsigned short __x)
__THROW __attribute_const__;
extern bool stdc_has_single_bit_ui (unsigned int __x)
__THROW __attribute_const__;
extern bool stdc_has_single_bit_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern bool stdc_has_single_bit_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_has_single_bit)
# define stdc_has_single_bit(x) (__builtin_stdc_has_single_bit (x))
#else
# define stdc_has_single_bit(x) \
((bool) (sizeof (x) <= sizeof (unsigned int) \
? stdc_has_single_bit_ui (x) \
: stdc_has_single_bit_ull (x)))
#endif
static __always_inline bool
__hsb64_inline (uint64_t __x)
{
return (__x ^ (__x - 1)) > __x - 1;
}
static __always_inline bool
__hsb32_inline (uint32_t __x)
{
return (__x ^ (__x - 1)) > __x - 1;
}
static __always_inline bool
__hsb16_inline (uint16_t __x)
{
return (__x ^ (__x - 1)) > __x - 1;
}
static __always_inline bool
__hsb8_inline (uint8_t __x)
{
return (__x ^ (__x - 1)) > __x - 1;
}
#define stdc_has_single_bit_uc(x) (__hsb8_inline (x))
#define stdc_has_single_bit_us(x) (__hsb16_inline (x))
#define stdc_has_single_bit_ui(x) (__hsb32_inline (x))
#if __WORDSIZE == 64
# define stdc_has_single_bit_ul(x) (__hsb64_inline (x))
#else
# define stdc_has_single_bit_ul(x) (__hsb32_inline (x))
#endif
#define stdc_has_single_bit_ull(x) (__hsb64_inline (x))
/* Bit width. */
extern unsigned int stdc_bit_width_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned int stdc_bit_width_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_bit_width_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned int stdc_bit_width_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned int stdc_bit_width_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_bit_width)
# define stdc_bit_width(x) (__builtin_stdc_bit_width (x))
#else
# define stdc_bit_width(x) (stdc_bit_width_ull (x))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
__bw64_inline (uint64_t __x)
{
return 64 - __clz64_inline (__x);
}
static __always_inline unsigned int
__bw32_inline (uint32_t __x)
{
return 32 - __clz32_inline (__x);
}
static __always_inline unsigned int
__bw16_inline (uint16_t __x)
{
return 16 - __clz16_inline (__x);
}
static __always_inline unsigned int
__bw8_inline (uint8_t __x)
{
return 8 - __clz8_inline (__x);
}
# define stdc_bit_width_uc(x) (__bw8_inline (x))
# define stdc_bit_width_us(x) (__bw16_inline (x))
# define stdc_bit_width_ui(x) (__bw32_inline (x))
# if __WORDSIZE == 64
# define stdc_bit_width_ul(x) (__bw64_inline (x))
# else
# define stdc_bit_width_ul(x) (__bw32_inline (x))
# endif
# define stdc_bit_width_ull(x) (__bw64_inline (x))
#endif
/* Bit floor. */
extern unsigned char stdc_bit_floor_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned short stdc_bit_floor_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_bit_floor_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned long int stdc_bit_floor_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned long long int stdc_bit_floor_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_bit_floor)
# define stdc_bit_floor(x) (__builtin_stdc_bit_floor (x))
#else
# define stdc_bit_floor(x) ((__typeof (x)) stdc_bit_floor_ull (x))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline uint64_t
__bf64_inline (uint64_t __x)
{
return __x == 0 ? 0 : ((uint64_t) 1) << (__bw64_inline (__x) - 1);
}
static __always_inline uint32_t
__bf32_inline (uint32_t __x)
{
return __x == 0 ? 0 : ((uint32_t) 1) << (__bw32_inline (__x) - 1);
}
static __always_inline uint16_t
__bf16_inline (uint16_t __x)
{
return __pacify_uint16 (__x == 0
? 0 : ((uint16_t) 1) << (__bw16_inline (__x) - 1));
}
static __always_inline uint8_t
__bf8_inline (uint8_t __x)
{
return __pacify_uint8 (__x == 0
? 0 : ((uint8_t) 1) << (__bw8_inline (__x) - 1));
}
# define stdc_bit_floor_uc(x) ((unsigned char) __bf8_inline (x))
# define stdc_bit_floor_us(x) ((unsigned short) __bf16_inline (x))
# define stdc_bit_floor_ui(x) ((unsigned int) __bf32_inline (x))
# if __WORDSIZE == 64
# define stdc_bit_floor_ul(x) ((unsigned long int) __bf64_inline (x))
# else
# define stdc_bit_floor_ul(x) ((unsigned long int) __bf32_inline (x))
# endif
# define stdc_bit_floor_ull(x) ((unsigned long long int) __bf64_inline (x))
#endif
/* Bit ceiling. */
extern unsigned char stdc_bit_ceil_uc (unsigned char __x)
__THROW __attribute_const__;
extern unsigned short stdc_bit_ceil_us (unsigned short __x)
__THROW __attribute_const__;
extern unsigned int stdc_bit_ceil_ui (unsigned int __x)
__THROW __attribute_const__;
extern unsigned long int stdc_bit_ceil_ul (unsigned long int __x)
__THROW __attribute_const__;
__extension__
extern unsigned long long int stdc_bit_ceil_ull (unsigned long long int __x)
__THROW __attribute_const__;
#if __glibc_has_builtin (__builtin_stdc_bit_ceil)
# define stdc_bit_ceil(x) (__builtin_stdc_bit_ceil (x))
#else
# define stdc_bit_ceil(x) ((__typeof (x)) stdc_bit_ceil_ull (x))
#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline uint64_t
__bc64_inline (uint64_t __x)
{
return __x <= 1 ? 1 : ((uint64_t) 2) << (__bw64_inline (__x - 1) - 1);
}
static __always_inline uint32_t
__bc32_inline (uint32_t __x)
{
return __x <= 1 ? 1 : ((uint32_t) 2) << (__bw32_inline (__x - 1) - 1);
}
static __always_inline uint16_t
__bc16_inline (uint16_t __x)
{
return __pacify_uint16 (__x <= 1
? 1
: ((uint16_t) 2)
<< (__bw16_inline ((uint16_t) (__x - 1)) - 1));
}
static __always_inline uint8_t
__bc8_inline (uint8_t __x)
{
return __pacify_uint8 (__x <= 1
? 1
: ((uint8_t) 2)
<< (__bw8_inline ((uint8_t) (__x - 1)) - 1));
}
# define stdc_bit_ceil_uc(x) ((unsigned char) __bc8_inline (x))
# define stdc_bit_ceil_us(x) ((unsigned short) __bc16_inline (x))
# define stdc_bit_ceil_ui(x) ((unsigned int) __bc32_inline (x))
# if __WORDSIZE == 64
# define stdc_bit_ceil_ul(x) ((unsigned long int) __bc64_inline (x))
# else
# define stdc_bit_ceil_ul(x) ((unsigned long int) __bc32_inline (x))
# endif
# define stdc_bit_ceil_ull(x) ((unsigned long long int) __bc64_inline (x))
#endif
__END_DECLS
#endif /* _STDBIT_H */
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| X11 | Folder | 0755 |
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| arpa | Folder | 0755 |
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| asm-generic | Folder | 0755 |
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| drm | Folder | 0755 |
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| finclude | Folder | 0755 |
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| iproute2 | Folder | 0755 |
|
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| linux | Folder | 0755 |
|
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| misc | Folder | 0755 |
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| mtd | Folder | 0755 |
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| net | Folder | 0755 |
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| netash | Folder | 0755 |
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| netatalk | Folder | 0755 |
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| netax25 | Folder | 0755 |
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| neteconet | Folder | 0755 |
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| netinet | Folder | 0755 |
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| netipx | Folder | 0755 |
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| netiucv | Folder | 0755 |
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| netpacket | Folder | 0755 |
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| netrom | Folder | 0755 |
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| netrose | Folder | 0755 |
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| nfs | Folder | 0755 |
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| php | Folder | 0755 |
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| protocols | Folder | 0755 |
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| rdma | Folder | 0755 |
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| regulator | Folder | 0755 |
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| rpc | Folder | 0755 |
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| rpcsvc | Folder | 0755 |
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| scsi | Folder | 0755 |
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| sound | Folder | 0755 |
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| video | Folder | 0755 |
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| x86_64-linux-gnu | Folder | 0755 |
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| xen | Folder | 0755 |
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| xfs | Folder | 0755 |
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| aio.h | File | 7.56 KB | 0644 |
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| aliases.h | File | 1.98 KB | 0644 |
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| alloca.h | File | 1.17 KB | 0644 |
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| ar.h | File | 1.69 KB | 0644 |
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| argp.h | File | 24.95 KB | 0644 |
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| argz.h | File | 5.91 KB | 0644 |
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| assert.h | File | 4.97 KB | 0644 |
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| byteswap.h | File | 1.42 KB | 0644 |
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| complex.h | File | 7.95 KB | 0644 |
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| cpio.h | File | 2.21 KB | 0644 |
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| crypt.h | File | 10.87 KB | 0644 |
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| ctype.h | File | 10.71 KB | 0644 |
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| dirent.h | File | 12.32 KB | 0644 |
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| dlfcn.h | File | 8.38 KB | 0644 |
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| elf.h | File | 190.33 KB | 0644 |
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| endian.h | File | 2.25 KB | 0644 |
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| envz.h | File | 2.8 KB | 0644 |
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| err.h | File | 2.33 KB | 0644 |
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| errno.h | File | 1.64 KB | 0644 |
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| error.h | File | 2.37 KB | 0644 |
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| execinfo.h | File | 1.49 KB | 0644 |
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| fcntl.h | File | 11.17 KB | 0644 |
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| features-time64.h | File | 1.38 KB | 0644 |
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| features.h | File | 18.09 KB | 0644 |
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| fenv.h | File | 5.65 KB | 0644 |
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| fmtmsg.h | File | 3.16 KB | 0644 |
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| fnmatch.h | File | 2.24 KB | 0644 |
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| fstab.h | File | 3.04 KB | 0644 |
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| fts.h | File | 9.35 KB | 0644 |
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| ftw.h | File | 6.19 KB | 0644 |
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| gawkapi.h | File | 40.72 KB | 0644 |
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| gconv.h | File | 4.11 KB | 0644 |
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| getopt.h | File | 1.43 KB | 0644 |
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| glob.h | File | 7.13 KB | 0644 |
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| gnu-versions.h | File | 2.29 KB | 0644 |
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| grp.h | File | 6.69 KB | 0644 |
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| gshadow.h | File | 4.58 KB | 0644 |
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| iconv.h | File | 1.87 KB | 0644 |
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| ifaddrs.h | File | 2.77 KB | 0644 |
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| inttypes.h | File | 11.04 KB | 0644 |
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| langinfo.h | File | 17.43 KB | 0644 |
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| lastlog.h | File | 126 B | 0644 |
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| libgen.h | File | 1.35 KB | 0644 |
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| libintl.h | File | 4.47 KB | 0644 |
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| limits.h | File | 5.57 KB | 0644 |
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| link.h | File | 7.62 KB | 0644 |
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| locale.h | File | 7.5 KB | 0644 |
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| malloc.h | File | 5.84 KB | 0644 |
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| math.h | File | 49.75 KB | 0644 |
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| mcheck.h | File | 2.38 KB | 0644 |
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| memory.h | File | 956 B | 0644 |
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| mntent.h | File | 3.28 KB | 0644 |
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| monetary.h | File | 1.92 KB | 0644 |
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| mqueue.h | File | 4.5 KB | 0644 |
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| netdb.h | File | 27.79 KB | 0644 |
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| nl_types.h | File | 1.71 KB | 0644 |
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| nss.h | File | 14.07 KB | 0644 |
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| obstack.h | File | 20.81 KB | 0644 |
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| paths.h | File | 2.91 KB | 0644 |
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| poll.h | File | 22 B | 0644 |
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| printf.h | File | 6.71 KB | 0644 |
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| proc_service.h | File | 3.4 KB | 0644 |
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| pthread.h | File | 47.25 KB | 0644 |
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| pty.h | File | 1.53 KB | 0644 |
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| pwd.h | File | 6.17 KB | 0644 |
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| re_comp.h | File | 963 B | 0644 |
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| regex.h | File | 25.3 KB | 0644 |
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| regexp.h | File | 1.35 KB | 0644 |
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| resolv.h | File | 12.02 KB | 0644 |
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| sched.h | File | 4.92 KB | 0644 |
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| search.h | File | 5.32 KB | 0644 |
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| semaphore.h | File | 3.38 KB | 0644 |
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| setjmp.h | File | 3.12 KB | 0644 |
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| sgtty.h | File | 1.31 KB | 0644 |
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| shadow.h | File | 5.5 KB | 0644 |
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| signal.h | File | 12.73 KB | 0644 |
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| spawn.h | File | 8.19 KB | 0644 |
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| stab.h | File | 264 B | 0644 |
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| stdbit.h | File | 26.27 KB | 0644 |
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| stdc-predef.h | File | 2.4 KB | 0644 |
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| stdint.h | File | 7.96 KB | 0644 |
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| stdio.h | File | 33.84 KB | 0644 |
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| stdio_ext.h | File | 2.73 KB | 0644 |
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| stdlib.h | File | 40.07 KB | 0644 |
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| string.h | File | 19.5 KB | 0644 |
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| strings.h | File | 4.64 KB | 0644 |
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| sudo_plugin.h | File | 11.68 KB | 0644 |
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| syscall.h | File | 25 B | 0644 |
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| sysexits.h | File | 5.11 KB | 0644 |
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| syslog.h | File | 24 B | 0644 |
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| tar.h | File | 3.66 KB | 0644 |
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| termio.h | File | 214 B | 0644 |
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| termios.h | File | 3.51 KB | 0644 |
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| tgmath.h | File | 46.51 KB | 0644 |
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| thread_db.h | File | 15.65 KB | 0644 |
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| threads.h | File | 7.62 KB | 0644 |
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| time.h | File | 14.77 KB | 0644 |
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| ttyent.h | File | 2.44 KB | 0644 |
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| uchar.h | File | 3.04 KB | 0644 |
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| ucontext.h | File | 1.99 KB | 0644 |
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| ulimit.h | File | 1.55 KB | 0644 |
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| unistd.h | File | 44 KB | 0644 |
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| utime.h | File | 1.86 KB | 0644 |
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| utmp.h | File | 3.15 KB | 0644 |
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| utmpx.h | File | 4 KB | 0644 |
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| values.h | File | 1.91 KB | 0644 |
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| wait.h | File | 22 B | 0644 |
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| wchar.h | File | 38.19 KB | 0644 |
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| wctype.h | File | 5.42 KB | 0644 |
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| wordexp.h | File | 2.44 KB | 0644 |
|