Boost Json Translation (zh_Hans)/Doc / Pages / Conversion / Alloc (adoc)

Exit Zen

3 :20

	English As the conversion result is set via an output parameter of type `value&`, the intended <<ref_storage_ptr>> is correctly propagated. But users still should take care to not create temporaries using the default {ref_memory_resource} by accident. 243/10000 · 243
4 :25

	English For example, consider this alternative implementation of `tag_invoke` for `ip_address` from the section <<custom_conversions>>. 127/10000 · 127
5 :28

	English ``` void tag_invoke( const value_from_tag&, value& jv, ip_address const& addr ) { jv = array{ b[0], b[1], b[2], b[3] }; } ``` 125/10000 · 125
6 :36

	English This implementation explicitly creates an <<ref_array>> rather than relying on assignment from an initializer list. But the array uses default {ref_memory_resource}, not the one used by `jv`. 191/10000 · 191
7 :40

	English To avoid creating such temporaries with an incorrect {ref_memory_resource}, using <<ref_value>>'s member functions <<ref_value_emplace_array>>, <<ref_value_emplace_object>>, and <<ref_value_emplace_string>> can be helpful. 222/10000 · 222
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