54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/*
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* For fuzzing all of the implementations (haswell/fallback/westmere),
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* finding any difference between the output of each which would
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* indicate inconsistency. Also, it gets the non-default backend
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* some fuzzing love.
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*
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* Copyright Paul Dreik 20200912 for the simdjson project.
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*/
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#include "simdjson.h"
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#include <cstddef>
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#include <cstdlib>
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#include "supported_implementations.h"
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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// since this check is expensive, only do it once
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static const auto supported_implementations=get_runtime_supported_implementations();
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auto utf8verify=[Data,Size](const simdjson::implementation* impl) -> bool {
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return impl->validate_utf8((const char*)Data,Size);
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};
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auto first = supported_implementations.begin();
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auto last = supported_implementations.end();
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const bool reference=utf8verify(*first);
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bool failed=false;
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for(auto it=first+1; it != last; ++it) {
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const bool current=utf8verify(*it);
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if(current!=reference) {
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failed=true;
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}
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}
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if(failed) {
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std::cerr<<std::boolalpha<<"Mismatch between implementations of validate_utf8() found:\n";
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for(const auto& e: supported_implementations) {
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if(!e->supported_by_runtime_system()) { continue; }
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const bool current=utf8verify(e);
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std::cerr<<e->name()<<" returns "<<current<<std::endl;
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}
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std::abort();
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}
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//all is well
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return 0;
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}
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