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https://github.com/nlohmann/json.git
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Niels Lohmann
9c7eb12918
GCC ignores the target attribute in modules, so the SSSE3 dispatch is disabled for the module interface (the check stays portable, SSE2 is kept). Make the 8-vs-16 byte unrolling condition in scan_string_run a preprocessor/template split to avoid a constant condition (C4127). Signed-off-by: Niels Lohmann <mail@nlohmann.me>
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
// __ _____ _____ _____
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// __| | __| | | | JSON for Modern C++
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// | | |__ | | | | | | version 3.12.0
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// |_____|_____|_____|_|___| https://github.com/nlohmann/json
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//
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// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
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// SPDX-License-Identifier: MIT
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module;
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// GCC workaround for C++ modules support.
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// When using C++20 modules, some compilers (particularly GCC) may have issues
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// with template instantiations in the module preamble. If you encounter
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// "redefinition" errors when including nlohmann/json.hpp, try one of:
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// 1. Include nlohmann/json.hpp in your module preamble BEFORE other #includes
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// 2. Or use: import nlohmann.json; instead of #include <nlohmann/json.hpp>
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// 3. Or upgrade to a newer GCC version with better modules support.
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// See: https://github.com/nlohmann/json/issues/5103
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// GCC ignores the target attribute in modules ("'target' attribute currently
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// unsupported in modules") and then rejects the SSSE3 intrinsics of json_view.
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#if defined(__GNUC__) && !defined(__clang__)
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#define NLOHMANN_VIEW_NO_TARGET_ATTRIBUTE
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#endif
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#include <nlohmann/json.hpp>
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#include <nlohmann/json_literals.hpp>
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#include <nlohmann/json_view.hpp>
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export module nlohmann.json;
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export
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NLOHMANN_JSON_NAMESPACE_BEGIN
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using NLOHMANN_JSON_NAMESPACE::adl_serializer;
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using NLOHMANN_JSON_NAMESPACE::basic_json;
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using NLOHMANN_JSON_NAMESPACE::basic_json_document;
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using NLOHMANN_JSON_NAMESPACE::basic_json_view;
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using NLOHMANN_JSON_NAMESPACE::json;
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using NLOHMANN_JSON_NAMESPACE::json_document;
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using NLOHMANN_JSON_NAMESPACE::json_pointer;
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using NLOHMANN_JSON_NAMESPACE::json_view;
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using NLOHMANN_JSON_NAMESPACE::ordered_json;
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using NLOHMANN_JSON_NAMESPACE::ordered_json_document;
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using NLOHMANN_JSON_NAMESPACE::ordered_json_view;
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using NLOHMANN_JSON_NAMESPACE::ordered_map;
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using NLOHMANN_JSON_NAMESPACE::to_string;
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inline namespace literals
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{
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inline namespace json_literals
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{
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using NLOHMANN_JSON_NAMESPACE::literals::json_literals::operator""_json;
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using NLOHMANN_JSON_NAMESPACE::literals::json_literals::operator""_json_pointer;
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} // namespace json_literals
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} // namespace literals
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// Note: the following nlohmann::detail symbols must be exported due to
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// an MSVC bug failing to compile without these symbols visible (ticket #3970)
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namespace detail
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{
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using NLOHMANN_JSON_NAMESPACE::detail::json_sax_dom_callback_parser;
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using NLOHMANN_JSON_NAMESPACE::detail::unknown_size;
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} // namespace detail
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NLOHMANN_JSON_NAMESPACE_END
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