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pub struct Slice {
    pub start: isize,
    pub end: Option<isize>,
    pub step: isize,
}
Expand description

A slice (range with step size).

end is an exclusive index. Negative start or end indexes are counted from the back of the axis. If end is None, the slice extends to the end of the axis.

See also the s![] macro.

Examples

Slice::new(0, None, 1) is the full range of an axis. It can also be created with Slice::from(..). The Python equivalent is [:].

Slice::new(a, b, 2) is every second element from a until b. It can also be created with Slice::from(a..b).step_by(2). The Python equivalent is [a:b:2].

Slice::new(a, None, -1) is every element, from a until the end, in reverse order. It can also be created with Slice::from(a..).step_by(-1). The Python equivalent is [a::-1].

Fields

start: isize

start index; negative are counted from the back of the axis

end: Option<isize>

end index; negative are counted from the back of the axis; when not present the default is the full length of the axis.

step: isize

step size in elements; the default is 1, for every element.

Implementations

Create a new Slice with the given extents.

See also the From impls, converting from ranges; for example Slice::from(i..) or Slice::from(j..k).

step must be nonzero. (This method checks with a debug assertion that step is not zero.)

Create a new Slice with the given step size (multiplied with the previous step size).

step must be nonzero. (This method checks with a debug assertion that step is not zero.)

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Converts to this type from the input type.

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

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. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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.