mirror of http://192.168.1.51:8099/lmh188/twain3.0
17 lines
460 B
C
17 lines
460 B
C
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#pragma once
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#include <algorithm>
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template<typename MapType>
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auto get_map_key_by_value(const MapType& input_map, const decltype(input_map.begin()->second)& mapped_value) -> decltype(input_map.begin()->first)
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{
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auto iter = std::find_if(input_map.begin(), input_map.end(), [mapped_value](const auto& item) {
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return (item.second == mapped_value);
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});
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if (iter == input_map.end())
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{
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return decltype(input_map.begin()->first)();
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}
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return iter->first;
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}
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