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field_view::field_view (2 of 19 overloads)

(EXPERIMENTAL) Constructs a field_view holding NULL.

Synopsis
constexpr
field_view(
    std::nullptr_t);
Description

Caution: field_view(NULL) will not match this overload. It will try to construct a string_view from a NULL C string, causing undefined behavior.

Exception safety

No-throw guarantee.

Object lifetimes

Results in a field_view with value semantics (always valid).


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