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Access an element via JSON Pointer.
value
&& at_pointer(string_view
ptr,boost::source_location
const& loc = BOOST_CURRENT_LOCATION) &&;
This function is used to access a (potentially nested) element of the value using a JSON Pointer string.
Linear in the sizes of ptr
and underlying array, object, or string.
Strong guarantee.
Name |
Description |
---|---|
|
JSON Pointer string. |
|
|
reference to the element identified by ptr
.
Type |
Thrown On |
---|---|
boost::system::system_error |
if an error occurs. |