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◆ basic_json() [9/10]
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 = std::int64_t, class NumberUnsignedType = std::uint64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator, template< typename T, typename SFINAE=void > class JSONSerializer = adl_serializer, class BinaryType = std::vector<std::uint8_t>>
nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::basic_json |
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const basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType > & |
other | ) |
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inline |
Creates a copy of a given JSON value.
- Parameters
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[in] | other | the JSON value to copy |
- Postcondition
*this == other
- Complexity
- Linear in the size of other.
- Exception safety
- Strong guarantee: if an exception is thrown, there are no changes to any JSON value.
- Requirements
- This function helps
basic_json satisfying the Container requirements:
- The complexity is linear.
- As postcondition, it holds:
other == basic_json(other) .
- Example
- The following code shows an example for the copy constructor.
2#include <nlohmann/json.hpp>
9 json j1 = { "one", "two", 3, 4.5, false};
15 std::cout << j1 << " = " << j2 << '\n';
16 std::cout << std::boolalpha << (j1 == j2) << '\n';
basic_json<> json default JSON class
Output (play with this example online): ["one","two",3,4.5,false] = ["one","two",3,4.5,false]
true
The example code above can be translated with g++ -std=c++11 -Isingle_include doc/examples/basic_json__basic_json.cpp -o basic_json__basic_json
- Since
- version 1.0.0
Definition at line 19691 of file json.hpp.
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