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>
Inserts all values from from range [first, last)
and overwrites existing keys.
- Parameters
-
[in] | first | begin of the range of elements to insert |
[in] | last | end of the range of elements to insert |
- Exceptions
-
type_error.312 | if called on JSON values other than objects; example: "cannot use update() with string" |
invalid_iterator.202 | if iterator first or last does does not point to an object; example: "iterators first and last must point to
objects" |
invalid_iterator.210 | if first and last do not belong to the same JSON value; example: "iterators do not fit" |
- Complexity^^ O(N*log(size() + N)), where N is the number of elements to
- insert.
- Example^^ The example shows how update() is used__range. ^^ update.cpp
- Output (play with this example online):^^
{
"color": "blue",
"price": 17.99,
"speed": 100
}
^^ The example code above can be translated withg++ -std=c++11 -Isingle_include doc/examples/update.cpp -o update
- See also
- https://docs.python.org/3.6/library/stdtypes.html#dict.update
- Since
- version 3.0.0
Definition at line 17707 of file json.hpp.