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* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* eslint-disable no-invalid-this */
'use strict';
// MODULES //
var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
var getIndex = require( '@stdlib/ndarray/base/ind' );
var parent = require( '@stdlib/ndarray/base/ctor' ); // eslint-disable-line stdlib/no-redeclare
var format = require( '@stdlib/string/format' );
// VARIABLES //
var base = parent.prototype.iget;
// MAIN //
/**
* Returns an array element located at a specified linear index.
*
* ## Notes
*
* - For zero-dimensional arrays, the input argument is ignored and, for clarity, should not be provided.
*
* @private
* @param {integer} [idx] - linear view index
* @throws {TypeError} index must be an integer
* @throws {RangeError} index exceeds array dimensions
* @returns {*} array element
*/
function iget( idx ) {
if ( this._ndims > 0 ) {
if ( !isInteger( idx ) ) {
throw new TypeError( format( 'invalid argument. Index must be an integer. Value: `%s`.', idx ) );
}
idx = getIndex( idx, this._length-1, this._mode );
return base.call( this, idx );
}
return base.call( this );
}
// EXPORTS //
module.exports = iget;
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