pub struct Quality(pub u16);
Expand description
Represents a quality used in quality values.
Can be created with the q
function.
The quality value is defined as a number between 0 and 1 with three decimal places. This means
there are 1000 possible values. Since floating point numbers are not exact and the smallest
floating point data type (f32
) consumes four bytes, hyper uses an u16
value to store the
quality internally. For performance reasons you may set quality directly to a value between
0 and 1000 e.g. Quality(532)
matches the quality q=0.532
.
RFC7231 Section 5.3.1
gives more information on quality values in HTTP header fields.
Performs copy-assignment from
source
.
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Formats the value using the given formatter.
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Returns the “default value” for a type.
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Formats the value using the given formatter.
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Compares and returns the maximum of two values.
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Compares and returns the minimum of two values.
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Restrict a value to a certain interval.
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This method tests for
self
and
other
values to be equal, and is used
by
==
.
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This method tests for
!=
. The default implementation is almost always
sufficient, and should not be overridden without very good reason.
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This method returns an ordering between
self
and
other
values if one exists.
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This method tests less than (for
self
and
other
) and is used by the
<
operator.
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This method tests less than or equal to (for
self
and
other
) and is used by the
<=
operator.
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This method tests greater than (for
self
and
other
) and is used by the
>
operator.
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This method tests greater than or equal to (for
self
and
other
) and is used by the
>=
operator.
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Immutably borrows from an owned value.
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Mutably borrows from an owned value.
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Returns the argument unchanged.
Calls U::from(self)
.
That is, this conversion is whatever the implementation of
From<T> for U
chooses to do.
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning.
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Uses borrowed data to replace owned data, usually by cloning.
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Converts the given value to a
String
.
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The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.
Get the TypeId
of this object.