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template< template< typename U, typename V, typename...Args > class ObjectType = std::map, template< typename U, typename...Args > class ArrayType = std::vector, class StringType = std::string, class BooleanType = bool, class NumberIntegerType = int64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator> < / div >
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< td class = "memname" > < a class = "el" href = "classnlohmann_1_1basic__json.html" > nlohmann::basic_json< / a > ::< a class = "el" href = "classnlohmann_1_1basic__json.html" > basic_json< / a > < / td >
< td > (< / td >
< td class = "paramtype" > < a class = "el" href = "classnlohmann_1_1basic__json.html" > basic_json< / a > & &   < / td >
< td class = "paramname" > < em > other< / em > < / td > < td > )< / td >
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< p > Move constructor. Constructs a JSON value with the contents of the given value < em > other< / em > using move semantics. It "steals" the resources from < em > other< / em > and leaves it as JSON null value.< / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > other< / td > < td > value to move to this object< / td > < / tr >
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< dl class = "section post" > < dt > Postcondition< / dt > < dd > < em > other< / em > is a JSON null value< / dd > < / dl >
< dl class = "section user" > < dt > Complexity< / dt > < dd > Constant.< / dd > < / dl >
< dl class = "section user" > < dt > Example< / dt > < dd > The code below shows the move constructor explicitly called via std::move. < div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "preprocessor" > #include < json.hpp> < / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "keyword" > using namespace < / span > < a class = "code" href = "namespacenlohmann.html" > nlohmann< / a > ;< / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "keywordtype" > int< / span > main()< / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   {< / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > // create a JSON value< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < a class = "code" href = "classnlohmann_1_1basic__json.html" > json< / a > a = 23;< / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > // move contents of a to b< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < a class = "code" href = "classnlohmann_1_1basic__json.html" > json< / a > b(std::move(a));< / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "comment" > // serialize the JSON arrays< / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   std::cout < < a < < < span class = "charliteral" > ' \n' < / span > ;< / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   std::cout < < b < < < span class = "charliteral" > ' \n' < / span > ;< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   }< / div >
< div class = "ttc" id = "classnlohmann_1_1basic__json_html" > < div class = "ttname" > < a href = "classnlohmann_1_1basic__json.html" > nlohmann::basic_json< / a > < / div > < div class = "ttdoc" > a class to store JSON values < / div > < div class = "ttdef" > < b > Definition:< / b > json.hpp:113< / div > < / div >
< div class = "ttc" id = "namespacenlohmann_html" > < div class = "ttname" > < a href = "namespacenlohmann.html" > nlohmann< / a > < / div > < div class = "ttdoc" > namespace for Niels Lohmann < / div > < div class = "ttdef" > < b > Definition:< / b > json.hpp:49< / div > < / div >
< / div > <!-- fragment --> Output: < pre class = "fragment" > null
23
< / pre > The example code above can be translated with< pre class = "fragment" > g++ -std=c++11 -Isrc doc/examples/basic_json__moveconstructor.cpp -o basic_json__moveconstructor < / pre > . < / dd > < / dl >
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