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29 lines
732 B
C++
29 lines
732 B
C++
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#include <Functions/FunctionFactory.h>
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#include <Functions/FunctionsVisitParam.h>
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#include <Functions/FunctionsStringSearch.h>
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namespace DB
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{
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struct ExtractBool
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{
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using ResultType = UInt8;
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static UInt8 extract(const UInt8 * begin, const UInt8 * end)
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{
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return begin + 4 <= end && 0 == strncmp(reinterpret_cast<const char *>(begin), "true", 4);
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}
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};
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struct NameVisitParamExtractBool { static constexpr auto name = "visitParamExtractBool"; };
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using FunctionVisitParamExtractBool = FunctionsStringSearch<ExtractParamImpl<ExtractBool>, NameVisitParamExtractBool>;
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void registerFunctionVisitParamExtractBool(FunctionFactory & factory)
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{
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factory.registerFunction<FunctionVisitParamExtractBool>();
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}
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}
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