Returns the held value, or a default when no value is present.

Synopsis

Declared in <absl/status/statusor.h>

template<typename U>
requires internal_statusor::IsValueOrValid<T, U&&, false>::value
T
value_or(U&& default_value) const &;

Description

Returns the current value if this‐>ok() == true. Otherwise constructs a value using the provided default_value.

Unlike value, this function returns by value, copying the current value if necessary. If the value type supports an efficient move, it can be used as follows:

T value = std::move(statusor).value_or(def);

Unlike with value, calling std::move() on the result of value_or will still trigger a copy.

Return Value

The held value if present, otherwise default_value.

Parameters

Name

Description

default_value

The value returned when no held value is present.

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