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https://github.com/nlohmann/json.git
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Niels Lohmann
330fbead59
* Document clang-tidy exclusions and drop unneeded ones Re-enable every excluded check in a run of clang-tidy 22 over all tests and remove the seven that never fire (cert-err58-cpp, clang-analyzer-webkit.NoUncountedMemberChecker, cppcoreguidelines-virtual-class-destructor, google-readability-function-size, hicpp-function-size, hicpp-no-assembler, readability-function-size). Document the reason for every remaining exclusion at the top of the file. Exclude in advance the checks that only exist in clang-tidy 23 and are noise here (bugprone-signed-bitwise, *-explicit-constructor, readability-trailing-comma, modernize-use-string-view), plus modernize-use-integer-sign-comparison, which needs C++20 std::cmp_less and flags deliberate casts. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix clang-tidy findings in documentation examples and replace redundant aliases Apply clang-tidy fixes to the documentation examples: - performance-avoid-endl: std::endl -> '\n' - readability-qualified-auto: auto -> auto* / const auto* - performance-for-range-copy: copy -> const reference - google-readability-casting: C-style cast -> static_cast Replace redundant aliases (readability-redundant-qualified-alias) such as "using json = nlohmann::json;" with "using nlohmann::json;" in the documentation, README, examples, tests, and benchmarks. Aliases at class scope and aliases of other types (with_base_class_t etc.) are kept. No changes to the library or its public API. All changed examples were compiled and run; their output matches the stored .output files (except max_size and meta, which depend on the platform and compiler). Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Format doc examples with the pinned astyle Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me>
65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
#include <iostream>
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#include <iomanip>
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#include <nlohmann/json.hpp>
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using nlohmann::json;
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using namespace nlohmann::literals;
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// function to print UBJSON's diagnostic format
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void print_byte(uint8_t byte)
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{
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if (32 < byte and byte < 128)
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{
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std::cout << static_cast<char>(byte);
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}
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else
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{
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std::cout << static_cast<int>(byte);
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}
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}
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int main()
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{
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// create a JSON value
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json j = R"({"compact": true, "schema": false})"_json;
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// serialize it to UBJSON
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std::vector<std::uint8_t> v = json::to_ubjson(j);
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// print the vector content
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for (auto& byte : v)
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{
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print_byte(byte);
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}
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std::cout << '\n';
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// create an array of numbers
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json array = {1, 2, 3, 4, 5, 6, 7, 8};
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// serialize it to UBJSON using default representation
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std::vector<std::uint8_t> v_array = json::to_ubjson(array);
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// serialize it to UBJSON using size optimization
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std::vector<std::uint8_t> v_array_size = json::to_ubjson(array, true);
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// serialize it to UBJSON using type optimization
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std::vector<std::uint8_t> v_array_size_and_type = json::to_ubjson(array, true, true);
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// print the vector contents
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for (auto& byte : v_array)
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{
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print_byte(byte);
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}
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std::cout << '\n';
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for (auto& byte : v_array_size)
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{
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print_byte(byte);
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}
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std::cout << '\n';
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for (auto& byte : v_array_size_and_type)
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{
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print_byte(byte);
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}
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std::cout << '\n';
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}
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