deploy: 94fe31eb9b

api/basic_json_view/basic_json_view.md

@@ -1,20 +1,32 @@
 # <small>nlohmann::basic_json_view::</small>basic_json_view
 
 ```cpp
+// (1)
 basic_json_view() noexcept = default;
+
+// (2) only for Mode == view_mode::editable
+basic_json_view(const basic_json_view<BasicJsonType, view_mode::read_only>& other) noexcept;
 ```
 
-Creates an invalid (discarded) view: [`type()`](type.md) is `#!cpp value_t::discarded` and
-[`is_discarded()`](is_discarded.md) is `#!cpp true`.
+1. Creates an invalid (discarded) view: [`type()`](type.md) is `#!cpp value_t::discarded` and
+   [`is_discarded()`](is_discarded.md) is `#!cpp true`.
+2. Converts a view of a read-only document into a view of an editable document (implicitly), so that a function
+   taking a [`json_editable_view`](../json_editable_view.md) accepts both. The result is a view of the same value of
+   the same read-only document. See [`view_mode`](../view_mode.md) for why there is no conversion the other way.
 
-This is the only constructor a caller can use directly. Every other view is obtained from a
+## Parameters
+
+`other` (in)
+:   a view of a read-only document with the same `BasicJsonType`
+
+Apart from these, a view is obtained from a
 [`basic_json_document`](../basic_json_document/index.md), via [`root()`](../basic_json_document/root.md) or by
 navigating into a container with [`operator[]`](operator[].md), [`at`](at.md), [`front`](front.md), [`back`](back.md),
 [`find`](find.md), or iteration.
 
 ## Exception safety
 
-No-throw guarantee: this constructor never throws exceptions.
+No-throw guarantee: these constructors never throw exceptions.
 
 ## Complexity
 
@@ -64,6 +76,7 @@ placeholder for "no value yet" and later be assigned a real view.
 
 - [is_discarded](is_discarded.md) - return whether the view is invalid
 - [root](../basic_json_document/root.md) - the view of a document's root value
+- [view_mode](../view_mode.md) - whether a document and its views can be edited
 
 ## Version history