mirror of
https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
Daniel Lemire
b648a5fc0a
* add std::ranges support for On-Demand API (#2382) Add zero-cost range wrappers (array_range, object_range) that satisfy std::ranges::input_range, enabling std::views::transform and other C++20 range adaptors with the On-Demand parser. Uses direct forwarding via simdjson_inline with no value buffering, avoiding the per-element overhead (~20%) of the previous approach. Guarded by SIMDJSON_SUPPORTS_RANGES. * fix: replace non-ASCII em dash in test comment The just_ascii CI check flags any non-ASCII characters in source files. * let us see what we get with this... * minor tweak * minor update * update doc --------- Co-authored-by: Justin Li <justin53@bu.edu>
33 lines
951 B
C++
33 lines
951 B
C++
#pragma once
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#if SIMDJSON_EXCEPTIONS && SIMDJSON_SUPPORTS_RANGES
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#include "large_random.h"
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namespace large_random {
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using namespace simdjson;
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// Identical to simdjson_ondemand but uses get_range() for iteration.
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// Demonstrates that the ranges wrapper has zero per-element overhead.
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struct simdjson_ondemand_ranges {
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static constexpr diff_flags DiffFlags = diff_flags::NONE;
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ondemand::parser parser{};
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bool run(simdjson::padded_string &json, std::vector<point> &result) {
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auto doc = parser.iterate(json);
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for (auto coord_result : ondemand::get_range(doc.get_array())) {
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ondemand::object coord = coord_result;
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result.emplace_back(json_benchmark::point{coord.find_field("x"), coord.find_field("y"), coord.find_field("z")});
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}
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return true;
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}
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};
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BENCHMARK_TEMPLATE(large_random, simdjson_ondemand_ranges)->UseManualTime();
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} // namespace large_random
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#endif // SIMDJSON_EXCEPTIONS && SIMDJSON_SUPPORTS_RANGES
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