CLHS: Accessor ROW-MAJOR-AREF (original) (raw)

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Accessor ROW-MAJOR-AREF

Syntax:

row-major-aref array index => element

(setf (row-major-aref array index) new-element)

Arguments and Values:

_array_---an array.

_index_---a valid array row-major index for the array.

element, _new-element_---an object.

Description:

Considers array as a vector by viewing its elements in row-major order, and returns the element of that vector which is referred to by the given index.

row-major-aref is valid for use with setf.

Examples: None.

Side Effects: None.

Affected By: None.

Exceptional Situations: None.

See Also:

aref, array-row-major-index

Notes:

(row-major-aref array index) == (aref (make-array (array-total-size array) :displaced-to array :element-type (array-element-type array)) index)

(aref array i1 i2 ...) == (row-major-aref array (array-row-major-index array i1 i2))

The following X3J13 cleanup issues, not part of the specification, apply to this section:

• ARRAY-DIMENSION-LIMIT-IMPLICATIONS:ALL-FIXNUM
• AREF-1D

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