deps/cares/src/lib/util/ares_math.h - main - githubmirror/node

deps/cares/src/lib/util/ares_math.h
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Node.js GitHub Bot
deps: update c-ares to 1.34.8
08 июл 2026, 21:54
08 июл 2026, 21:54a18052e
/* MIT License
 *
 * Copyright (c) 2024 Brad House
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * SPDX-License-Identifier: MIT
 */
#ifndef __ARES_MATH_H
#define __ARES_MATH_H

#include "ares_setup.h"

#ifdef HAVE_STDINT_H
#  include <stdint.h>
   typedef int64_t  ares_int64_t;
   typedef uint64_t ares_uint64_t;
#else /* HAVE_STDINT_H */
#  ifdef _MSC_VER
     typedef __int64          ares_int64_t;
     typedef unsigned __int64 ares_uint64_t;
#  else
     typedef long long          ares_int64_t;
     typedef unsigned long long ares_uint64_t;
#  endif /* _MSC_VER */
#endif   /* HAVE_STDINT_H */

ares_bool_t   ares_is_64bit(void);
size_t        ares_round_up_pow2(size_t n);
size_t        ares_log2(size_t n);
size_t        ares_pow(size_t x, size_t y);
size_t        ares_count_digits(size_t n);
size_t        ares_count_hexdigits(size_t n);
unsigned char ares_count_bits_u8(unsigned char x);

/*! Multiply two size_t values, checking for overflow.  On success writes the
 *  product to *res and returns ARES_FALSE.  On overflow returns ARES_TRUE and
 *  leaves *res untouched. */
ares_bool_t ares_size_t_mul_overflow(size_t a, size_t b, size_t *res);

#endif