include/boost/url/detail/memcpy.hpp
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| Line | TLA | Hits | Source Code |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2025 Alan de Freitas (alandefreitas@gmail.com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/boostorg/url | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_URL_DETAIL_MEMCPY_HPP | ||
| 11 | #define BOOST_URL_DETAIL_MEMCPY_HPP | ||
| 12 | |||
| 13 | #include <boost/url/detail/config.hpp> | ||
| 14 | #include <cstddef> | ||
| 15 | #include <cstring> | ||
| 16 | |||
| 17 | namespace boost { | ||
| 18 | namespace urls { | ||
| 19 | namespace detail { | ||
| 20 | |||
| 21 | BOOST_URL_CXX14_CONSTEXPR_OR_FORCEINLINE | ||
| 22 | void | ||
| 23 | memcpy( | ||
| 24 | unsigned char* dest, | ||
| 25 | unsigned char const* src, | ||
| 26 | std::size_t n) noexcept | ||
| 27 | { | ||
| 28 | #if defined(BOOST_URL_HAS_BUILTIN_IS_CONSTANT_EVALUATED) | ||
| 29 | if (!__builtin_is_constant_evaluated()) | ||
| 30 | { | ||
| 31 | 4498 | std::memcpy(dest, src, n); | |
| 32 | } | ||
| 33 | else | ||
| 34 | { | ||
| 35 | for (std::size_t i = 0; i < n; ++i) | ||
| 36 | { | ||
| 37 | dest[i] = src[i]; | ||
| 38 | } | ||
| 39 | } | ||
| 40 | #elif defined(BOOST_NO_CXX14_CONSTEXPR) | ||
| 41 | std::memcpy(dest, src, n); | ||
| 42 | #else | ||
| 43 | // C++14 constexpr but no way to detect constant | ||
| 44 | // evaluation: always use the byte loop. | ||
| 45 | for (std::size_t i = 0; i < n; ++i) | ||
| 46 | { | ||
| 47 | dest[i] = src[i]; | ||
| 48 | } | ||
| 49 | #endif | ||
| 50 | 4498 | } | |
| 51 | |||
| 52 | } // detail | ||
| 53 | } // urls | ||
| 54 | } // boost | ||
| 55 | |||
| 56 | #endif | ||
| 57 |