diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/README.md b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/README.md
new file mode 100644
index 000000000000..24c8328ca3bf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/README.md
@@ -0,0 +1,125 @@
+
+
+# resultsFactory
+
+> Create a new constructor for creating a NaN-aware summation results object.
+
+
+
+
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var resultsFactory = require( '@stdlib/blas/ext/base/nannsum/results/factory' );
+```
+
+#### resultsFactory( dtype )
+
+Returns a new constructor for creating a NaN-aware summation results object.
+
+```javascript
+var Results = resultsFactory( 'float64' );
+// returns
+
+var r = new Results();
+// returns
+```
+
+The function supports the following parameters:
+
+- **dtype**: floating-point data type for storing floating-point results. Must be either `'float64'` or `'float32'`.
+
+
+
+
+
+
+
+
+
+## Notes
+
+- A results object is a [`struct`][@stdlib/dstructs/struct] providing a fixed-width composite data structure for storing NaN-aware summation results and providing an ABI-stable data layout for JavaScript-C interoperation.
+
+
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var BigInt = require( '@stdlib/bigint/ctor' );
+var resultsFactory = require( '@stdlib/blas/ext/base/nannsum/results/factory' );
+
+var Results = resultsFactory( 'float64' );
+var results = new Results({
+ 'sum': 11.7586,
+ 'count': BigInt( 5 )
+});
+
+var str = results.toString();
+console.log( str );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[@stdlib/dstructs/struct]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/dstructs/struct
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/benchmark/benchmark.js
new file mode 100644
index 000000000000..61d8755d75b3
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/benchmark/benchmark.js
@@ -0,0 +1,106 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isFunction = require( '@stdlib/assert/is-function' );
+var isObject = require( '@stdlib/assert/is-object' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var factory = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+ var values;
+ var v;
+ var i;
+
+ values = [
+ 'float64',
+ 'float32'
+ ];
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ v = factory( values[ i%values.length ] );
+ if ( typeof v !== 'function' ) {
+ b.fail( 'should return a function' );
+ }
+ }
+ b.toc();
+ if ( !isFunction( v ) ) {
+ b.fail( 'should return a function' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+});
+
+bench( format( '%s::constructor,new', pkg ), function benchmark( b ) {
+ var values;
+ var v;
+ var i;
+
+ values = [
+ factory( 'float64' ),
+ factory( 'float32' )
+ ];
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ v = new ( values[ i%values.length ] )();
+ if ( typeof v !== 'object' ) {
+ b.fail( 'should return an object' );
+ }
+ }
+ b.toc();
+ if ( !isObject( v ) ) {
+ b.fail( 'should return an object' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+});
+
+bench( format( '%s::constructor,no_new', pkg ), function benchmark( b ) {
+ var values;
+ var v;
+ var i;
+
+ values = [
+ factory( 'float64' ),
+ factory( 'float32' )
+ ];
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ v = values[ i%values.length ]();
+ if ( typeof v !== 'object' ) {
+ b.fail( 'should return an object' );
+ }
+ }
+ b.toc();
+ if ( !isObject( v ) ) {
+ b.fail( 'should return an object' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/repl.txt
new file mode 100644
index 000000000000..a69cd5027339
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/repl.txt
@@ -0,0 +1,24 @@
+
+{{alias}}( dtype )
+ Returns a constructor for creating a NaN-aware summation results object.
+
+ Parameters
+ ----------
+ dtype: string
+ Floating-point data type for storing floating-point results.
+
+ Returns
+ -------
+ fcn: Function
+ Results constructor.
+
+ Examples
+ --------
+ > var R = {{alias}}( 'float64' );
+ > var r = new R();
+ > r.toString()
+
+
+ See Also
+ --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/types/index.d.ts
new file mode 100644
index 000000000000..0668df73c484
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/types/index.d.ts
@@ -0,0 +1,141 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Interface describing NaN-aware summation results.
+*/
+interface Results {
+ /**
+ * Sum of non-NaN elements.
+ */
+ sum?: number;
+
+ /**
+ * Number of non-NaN elements.
+ */
+ count?: bigint;
+}
+
+/**
+* Interface describing options when serializing a results object to a string.
+*/
+interface ToStringOptions {
+ /**
+ * Number of digits to display after decimal points. Default: `4`.
+ */
+ digits?: number;
+}
+
+/**
+* Interface describing a results data structure.
+*/
+declare class ResultsStruct {
+ /**
+ * Results constructor.
+ *
+ * @param arg - buffer or data object
+ * @param byteOffset - byte offset
+ * @param byteLength - maximum byte length
+ * @returns results
+ */
+ constructor( arg?: ArrayBuffer | Results, byteOffset?: number, byteLength?: number );
+
+ /**
+ * Sum of non-NaN elements.
+ */
+ sum: number;
+
+ /**
+ * Number of non-NaN elements.
+ */
+ count: bigint;
+
+ /**
+ * Method name.
+ */
+ method: string;
+
+ /**
+ * Serializes a results object as a formatted string.
+ *
+ * @param options - options object
+ * @returns serialized results
+ */
+ toString( options?: ToStringOptions ): string;
+
+ /**
+ * Serializes a results object as a JSON object.
+ *
+ * @returns serialized object
+ */
+ toJSON(): object;
+
+ /**
+ * Returns a DataView of a results object.
+ *
+ * @returns DataView
+ */
+ toDataView(): DataView;
+}
+
+/**
+* Interface defining a results constructor which is both "newable" and "callable".
+*/
+interface ResultsConstructor {
+ /**
+ * Results constructor.
+ *
+ * @param arg - buffer or data object
+ * @param byteOffset - byte offset
+ * @param byteLength - maximum byte length
+ * @returns results object
+ */
+ new( arg?: ArrayBuffer | Results, byteOffset?: number, byteLength?: number ): ResultsStruct;
+
+ /**
+ * Results constructor.
+ *
+ * @param arg - buffer or data object
+ * @param byteOffset - byte offset
+ * @param byteLength - maximum byte length
+ * @returns results object
+ */
+ ( arg?: ArrayBuffer | Results, byteOffset?: number, byteLength?: number ): ResultsStruct;
+}
+
+/**
+* Returns a new results constructor for creating a NaN-aware summation results object.
+*
+* @param dtype - floating-point data type for storing floating-point results
+* @returns results constructor
+*
+* @example
+* var Results = resultsFactory( 'float64' );
+* // returns
+*
+* var r = new Results();
+* // returns
+*/
+declare function resultsFactory( dtype: 'float64' | 'float32' ): ResultsConstructor;
+
+
+// EXPORTS //
+
+export = resultsFactory;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/types/test.ts
new file mode 100644
index 000000000000..6e87cd71c035
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/docs/types/test.ts
@@ -0,0 +1,54 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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.
+*/
+
+import resultsFactory = require( './index' );
+
+
+// TESTS //
+
+// The function returns a function...
+{
+ resultsFactory( 'float64' ); // $ExpectType ResultsConstructor
+ resultsFactory( 'float32' ); // $ExpectType ResultsConstructor
+}
+
+// The compiler throws an error if not provided a supported data type...
+{
+ resultsFactory( 10 ); // $ExpectError
+ resultsFactory( true ); // $ExpectError
+ resultsFactory( false ); // $ExpectError
+ resultsFactory( null ); // $ExpectError
+ resultsFactory( undefined ); // $ExpectError
+ resultsFactory( [] ); // $ExpectError
+ resultsFactory( {} ); // $ExpectError
+ resultsFactory( ( x: number ): number => x ); // $ExpectError
+}
+
+// The function returns a function which returns a results object...
+{
+ const Results = resultsFactory( 'float64' );
+
+ // eslint-disable-next-line @typescript-eslint/no-unused-vars
+ const r1 = new Results( new ArrayBuffer( 80 ) ); // $ExpectType ResultsStruct
+
+ // eslint-disable-next-line @typescript-eslint/no-unused-vars
+ const r2 = new Results( new ArrayBuffer( 80 ), 8 ); // $ExpectType ResultsStruct
+
+ // eslint-disable-next-line @typescript-eslint/no-unused-vars
+ const r3 = new Results( new ArrayBuffer( 80 ), 8, 16 ); // $ExpectType ResultsStruct
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/examples/index.js
new file mode 100644
index 000000000000..91ceb14e3532
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/examples/index.js
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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.
+*/
+
+'use strict';
+
+var BigInt = require( '@stdlib/bigint/ctor' );
+var f32 = require( '@stdlib/number/float64/base/to-float32' );
+var resultsFactory = require( './../lib' );
+
+var Results = resultsFactory( 'float64' );
+var results = new Results({
+ 'sum': 11.7586,
+ 'count': BigInt( 5 )
+});
+
+var str = results.toString();
+console.log( str );
+
+Results = resultsFactory( 'float32' );
+results = new Results({
+ 'sum': f32( 11.7586 ),
+ 'count': BigInt( 5 )
+});
+
+str = results.toString();
+console.log( str );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/lib/index.js
new file mode 100644
index 000000000000..efdf515f5bbf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/lib/index.js
@@ -0,0 +1,48 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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.
+*/
+
+'use strict';
+
+/**
+* Return a constructor for creating a NaN-aware summation results object.
+*
+* @module @stdlib/blas/ext/base/nannsum/results/factory
+*
+* @example
+* var resultsFactory = require( '@stdlib/blas/ext/base/nannsum/results/factory' );
+*
+* var Results = resultsFactory( 'float64' );
+*
+* var results = new Results();
+* // returns
+*
+* results.sum = 11.7586;
+* results.count = 5;
+*
+* var str = results.toString();
+* // returns
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/lib/main.js
new file mode 100644
index 000000000000..4be930914832
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/lib/main.js
@@ -0,0 +1,357 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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, no-restricted-syntax */
+
+'use strict';
+
+// MODULES //
+
+var isArrayBuffer = require( '@stdlib/assert/is-arraybuffer' );
+var isObject = require( '@stdlib/assert/is-object' );
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var setReadOnlyAccessor = require( '@stdlib/utils/define-nonenumerable-read-only-accessor' );
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
+var join = require( '@stdlib/array/base/join' );
+var inherit = require( '@stdlib/utils/inherit' );
+var structFactory = require( '@stdlib/blas/ext/base/nannsum/results/struct-factory' );
+var res2json = require( '@stdlib/blas/ext/base/nannsum/results/to-json' );
+var res2str = require( '@stdlib/blas/ext/base/nannsum/results/to-string' );
+var format = require( '@stdlib/string/format' );
+
+
+// VARIABLES //
+
+var DTYPES = [
+ 'float64',
+ 'float32'
+];
+
+var isDataType = contains( DTYPES );
+
+
+// MAIN //
+
+/**
+* Returns a constructor for creating a NaN-aware summation results object.
+*
+* @param {string} dtype - storage data type for floating-point values
+* @throws {TypeError} first argument must be a supported data type
+* @returns {Function} constructor
+*
+* @example
+* var Results = factory( 'float64' );
+*
+* var results = new Results();
+* // returns
+*
+* results.sum = 11.7586;
+* results.count = 5;
+*
+* var str = results.toString();
+* // returns
+*/
+function factory( dtype ) {
+ var Struct;
+
+ if ( !isDataType( dtype ) ) {
+ throw new TypeError( format( 'invalid argument. First argument must be one of the following: "%s". Value: `%s`.', join( DTYPES, ', ' ), dtype ) );
+ }
+
+ // Create a struct constructor:
+ Struct = structFactory( dtype );
+
+ /**
+ * Returns a NaN-aware summation results object.
+ *
+ * @private
+ * @constructor
+ * @param {(ArrayBuffer|Object)} [arg] - underlying byte buffer or a data object
+ * @param {NonNegativeInteger} [byteOffset] - byte offset
+ * @param {NonNegativeInteger} [byteLength] - maximum byte length
+ * @throws {TypeError} first argument must be an ArrayBuffer or a data object
+ * @returns {Results} results object
+ */
+ function Results( arg, byteOffset, byteLength ) {
+ var nargs;
+ var args;
+ var i;
+
+ nargs = arguments.length;
+ if ( !( this instanceof Results ) ) {
+ if ( nargs === 0 ) {
+ return new Results();
+ }
+ if ( nargs === 1 ) {
+ return new Results( arg );
+ }
+ if ( nargs === 2 ) {
+ return new Results( arg, byteOffset );
+ }
+ return new Results( arg, byteOffset, byteLength );
+ }
+ args = [];
+ if ( nargs > 0 ) {
+ if ( isArrayBuffer( arg ) ) {
+ for ( i = 0; i < nargs; i++ ) {
+ args.push( arguments[ i ] );
+ }
+ } else if ( isObject( arg ) ) {
+ args.push( arg );
+ } else {
+ throw new TypeError( format( 'invalid argument. First argument must be an ArrayBuffer or a data object. Value: `%s`.', arg ) );
+ }
+ }
+ // Call the parent constructor...
+ Struct.apply( this, args );
+ return this;
+ }
+
+ /*
+ * Inherit from the parent constructor.
+ */
+ inherit( Results, Struct );
+
+ /**
+ * Constructor name.
+ *
+ * @private
+ * @name name
+ * @memberof Results
+ * @readonly
+ * @type {string}
+ */
+ setReadOnly( Results, 'name', Struct.name );
+
+ /**
+ * Alignment.
+ *
+ * @private
+ * @name alignment
+ * @memberof Results
+ * @readonly
+ * @type {PositiveInteger}
+ */
+ setReadOnly( Results, 'alignment', Struct.alignment );
+
+ /**
+ * Size (in bytes) of the `struct`.
+ *
+ * @private
+ * @name byteLength
+ * @memberof Results
+ * @readonly
+ * @type {PositiveInteger}
+ */
+ setReadOnly( Results, 'byteLength', Struct.byteLength );
+
+ /**
+ * Returns a list of `struct` fields.
+ *
+ * @private
+ * @name fields
+ * @memberof Results
+ * @readonly
+ * @type {Array}
+ */
+ setReadOnlyAccessor( Results, 'fields', function get() {
+ return Struct.fields;
+ });
+
+ /**
+ * Returns a string corresponding to the `struct` layout.
+ *
+ * @private
+ * @name layout
+ * @memberof Results
+ * @readonly
+ * @type {string}
+ */
+ setReadOnlyAccessor( Results, 'layout', function get() {
+ return Struct.layout;
+ });
+
+ /**
+ * Returns the underlying byte buffer of a `struct`.
+ *
+ * @private
+ * @name bufferOf
+ * @memberof Results
+ * @readonly
+ * @type {Function}
+ * @param {Object} obj - struct instance
+ * @throws {TypeError} must provide a `struct` instance
+ * @returns {ArrayBuffer} underlying byte buffer
+ */
+ setReadOnly( Results, 'bufferOf', Struct.bufferOf );
+
+ /**
+ * Returns the length, in bytes, of the value specified by the provided field name.
+ *
+ * @private
+ * @name byteLengthOf
+ * @memberof Results
+ * @readonly
+ * @type {Function}
+ * @param {string} name - field name
+ * @throws {Error} struct must have at least one field
+ * @throws {TypeError} must provide a recognized field name
+ * @returns {NonNegativeInteger} byte length
+ */
+ setReadOnly( Results, 'byteLengthOf', Struct.byteLengthOf );
+
+ /**
+ * Returns the offset, in bytes, from the beginning of a `struct` to the value specified by the provided field name.
+ *
+ * @private
+ * @name byteOffsetOf
+ * @memberof Results
+ * @readonly
+ * @type {Function}
+ * @param {string} name - field name
+ * @throws {Error} struct must have at least one field
+ * @throws {TypeError} must provide a recognized field name
+ * @returns {NonNegativeInteger} byte offset
+ */
+ setReadOnly( Results, 'byteOffsetOf', Struct.byteOffsetOf );
+
+ /**
+ * Returns the description associated with a provided field name.
+ *
+ * @private
+ * @name descriptionOf
+ * @memberof Results
+ * @readonly
+ * @type {Function}
+ * @param {string} name - field name
+ * @throws {Error} struct must have at least one field
+ * @throws {TypeError} must provide a recognized field name
+ * @returns {string} description
+ */
+ setReadOnly( Results, 'descriptionOf', Struct.descriptionOf );
+
+ /**
+ * Returns a boolean indicating whether a provided value is a `struct` instance.
+ *
+ * @private
+ * @name isStruct
+ * @memberof Results
+ * @readonly
+ * @type {Function}
+ * @param {*} value - input value
+ * @returns {boolean} boolean indicating whether a value is a `struct` instance
+ */
+ setReadOnly( Results, 'isStruct', Struct.isStruct );
+
+ /**
+ * Returns the type associated with a provided field name.
+ *
+ * @private
+ * @name typeOf
+ * @memberof Results
+ * @readonly
+ * @type {Function}
+ * @param {string} name - field name
+ * @throws {Error} struct must have at least one field
+ * @throws {TypeError} must provide a recognized field name
+ * @returns {(string|Object)} type
+ */
+ setReadOnly( Results, 'typeOf', Struct.typeOf );
+
+ /**
+ * Returns the underlying byte buffer of a `struct` as a `DataView`.
+ *
+ * @private
+ * @name viewOf
+ * @memberof Results
+ * @readonly
+ * @type {Function}
+ * @param {Object} obj - struct instance
+ * @throws {TypeError} must provide a `struct` instance
+ * @returns {DataView} view of underlying byte buffer
+ */
+ setReadOnly( Results, 'viewOf', Struct.viewOf );
+
+ /**
+ * Method name.
+ *
+ * @private
+ * @name method
+ * @memberof Results.prototype
+ * @type {string}
+ * @default 'NaN-aware summation'
+ */
+ setReadOnly( Results.prototype, 'method', 'NaN-aware summation' );
+
+ /**
+ * Serializes a results object as a string.
+ *
+ * @private
+ * @name toString
+ * @memberof Results.prototype
+ * @type {Function}
+ * @param {Options} [opts] - options object
+ * @param {PositiveInteger} [opts.digits=4] - number of digits after the decimal point
+ * @throws {TypeError} options argument must be an object
+ * @throws {TypeError} must provide valid options
+ * @returns {string} serialized results
+ */
+ setReadOnly( Results.prototype, 'toString', function toString( opts ) {
+ if ( arguments.length ) {
+ return res2str( this, opts );
+ }
+ return res2str( this );
+ });
+
+ /**
+ * Serializes a results object as a JSON object.
+ *
+ * ## Notes
+ *
+ * - `JSON.stringify()` implicitly calls this method when stringifying a `Results` instance.
+ *
+ * @private
+ * @name toJSON
+ * @memberof Results.prototype
+ * @type {Function}
+ * @returns {Object} serialized object
+ */
+ setReadOnly( Results.prototype, 'toJSON', function toJSON() {
+ return res2json( this );
+ });
+
+ /**
+ * Returns a DataView of a results object.
+ *
+ * @private
+ * @name toDataView
+ * @memberof Results.prototype
+ * @type {Function}
+ * @returns {DataView} DataView
+ */
+ setReadOnly( Results.prototype, 'toDataView', function toDataView() {
+ return Struct.viewOf( this );
+ });
+
+ return Results;
+}
+
+
+// EXPORTS //
+
+module.exports = factory;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/package.json b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/package.json
new file mode 100644
index 000000000000..371361952e2d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/package.json
@@ -0,0 +1,69 @@
+{
+ "name": "@stdlib/blas/ext/base/nannsum/results/factory",
+ "version": "0.0.0",
+ "description": "Return a constructor for creating a NaN-aware summation results object.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "lib": "./lib",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "blas",
+ "linear",
+ "algebra",
+ "linalg",
+ "nannsum",
+ "nan",
+ "sum",
+ "utilities",
+ "utility",
+ "utils",
+ "util",
+ "constructor",
+ "ctor",
+ "results"
+ ],
+ "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/test/test.js
new file mode 100644
index 000000000000..92b0ed868333
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/nannsum/results/factory/test/test.js
@@ -0,0 +1,503 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var BigInt = require( '@stdlib/bigint/ctor' );
+var Number = require( '@stdlib/number/ctor' );
+var isDataView = require( '@stdlib/assert/is-dataview' );
+var isStringArray = require( '@stdlib/assert/is-string-array' ).primitives;
+var ArrayBuffer = require( '@stdlib/array/buffer' );
+var f32 = require( '@stdlib/number/float64/base/to-float32' );
+var resultsFactory = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof resultsFactory, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function throws an error if provided a first argument which is not a supported data type', function test( t ) {
+ var values;
+ var i;
+
+ values = [
+ '5',
+ 5,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ [],
+ {},
+ function noop() {}
+ ];
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ resultsFactory( value );
+ };
+ }
+});
+
+tape( 'the function returns a constructor which throws an error if provided a first argument which is not an ArrayBuffer or data object', function test( t ) {
+ var results;
+ var values;
+ var i;
+
+ results = resultsFactory( 'float64' );
+
+ values = [
+ '5',
+ 5,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ [],
+ function noop() {}
+ ];
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ results( value );
+ };
+ }
+});
+
+tape( 'the function returns a constructor which throws an error if provided a second argument which is not a nonnegative integer', function test( t ) {
+ var results;
+ var values;
+ var i;
+
+ results = resultsFactory( 'float64' );
+
+ values = [
+ '5',
+ -5,
+ 3.14,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ [],
+ {},
+ function noop() {}
+ ];
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ results( new ArrayBuffer( 1024 ), value );
+ };
+ }
+});
+
+tape( 'the function returns a constructor which throws an error if provided a third argument which is not a nonnegative integer', function test( t ) {
+ var results;
+ var values;
+ var i;
+
+ results = resultsFactory( 'float64' );
+
+ values = [
+ '5',
+ -5,
+ 3.14,
+ NaN,
+ true,
+ false,
+ null,
+ void 0,
+ [],
+ {},
+ function noop() {}
+ ];
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ results( new ArrayBuffer( 1024 ), 0, value );
+ };
+ }
+});
+
+tape( 'the function returns a constructor which does not require the `new` operator', function test( t ) {
+ var results;
+ var res;
+
+ results = resultsFactory( 'float64' );
+
+ res = results();
+ t.strictEqual( res instanceof results, true, 'returns expected value' );
+
+ res = results( {} );
+ t.strictEqual( res instanceof results, true, 'returns expected value' );
+
+ res = results( new ArrayBuffer( 1024 ) );
+ t.strictEqual( res instanceof results, true, 'returns expected value' );
+
+ res = results( new ArrayBuffer( 1024 ), 0 );
+ t.strictEqual( res instanceof results, true, 'returns expected value' );
+
+ res = results( new ArrayBuffer( 1024 ), 0, 1024 );
+ t.strictEqual( res instanceof results, true, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a constructor for creating a fixed-width results object (dtype=float64)', function test( t ) {
+ var expected;
+ var Results;
+ var actual;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ actual = new Results({
+ 'sum': 11.7586,
+ 'count': BigInt( 5 )
+ });
+
+ expected = {
+ 'sum': 11.7586,
+ 'count': 5
+ };
+
+ t.strictEqual( actual instanceof Results, true, 'returns expected value' );
+ t.strictEqual( actual.sum, expected.sum, 'returns expected value' );
+ t.strictEqual( Number( actual.count ), expected.count, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor for creating a fixed-width results object (dtype=float32)', function test( t ) {
+ var expected;
+ var Results;
+ var actual;
+
+ Results = resultsFactory( 'float32' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ actual = new Results({
+ 'sum': f32( 11.7586 ),
+ 'count': BigInt( 5 )
+ });
+
+ expected = {
+ 'sum': f32( 11.7586 ),
+ 'count': 5
+ };
+
+ t.strictEqual( actual instanceof Results, true, 'returns expected value' );
+ t.strictEqual( actual.sum, expected.sum, 'returns expected value' );
+ t.strictEqual( Number( actual.count ), expected.count, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor for creating a fixed-width results object (no arguments)', function test( t ) {
+ var expected;
+ var Results;
+ var actual;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ actual = new Results();
+
+ actual.sum = 11.7586;
+ actual.count = BigInt( 5 );
+
+ expected = {
+ 'sum': 11.7586,
+ 'count': 5
+ };
+
+ t.strictEqual( actual instanceof Results, true, 'returns expected value' );
+ t.strictEqual( actual.sum, expected.sum, 'returns expected value' );
+ t.strictEqual( Number( actual.count ), expected.count, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor for creating a fixed-width results object (empty object)', function test( t ) {
+ var expected;
+ var Results;
+ var actual;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ actual = new Results( {} );
+
+ actual.sum = 11.7586;
+ actual.count = BigInt( 5 );
+
+ expected = {
+ 'sum': 11.7586,
+ 'count': 5
+ };
+
+ t.strictEqual( actual instanceof Results, true, 'returns expected value' );
+ t.strictEqual( actual.sum, expected.sum, 'returns expected value' );
+ t.strictEqual( Number( actual.count ), expected.count, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor for creating a fixed-width results object (ArrayBuffer)', function test( t ) {
+ var expected;
+ var Results;
+ var actual;
+ var buf;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ buf = new ArrayBuffer( 1024 );
+ actual = new Results( buf );
+
+ actual.sum = 11.7586;
+ actual.count = BigInt( 5 );
+
+ expected = {
+ 'sum': 11.7586,
+ 'count': 5
+ };
+
+ t.strictEqual( actual instanceof Results, true, 'returns expected value' );
+ t.strictEqual( actual.toDataView().buffer, buf, 'returns expected value' );
+ t.strictEqual( actual.toDataView().byteOffset, 0, 'returns expected value' );
+ t.strictEqual( actual.sum, expected.sum, 'returns expected value' );
+ t.strictEqual( Number( actual.count ), expected.count, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor for creating a fixed-width results object (ArrayBuffer, byteOffset)', function test( t ) {
+ var expected;
+ var Results;
+ var actual;
+ var buf;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ buf = new ArrayBuffer( 1024 );
+ actual = new Results( buf, 16 );
+
+ actual.sum = 11.7586;
+ actual.count = BigInt( 5 );
+
+ expected = {
+ 'sum': 11.7586,
+ 'count': 5
+ };
+
+ t.strictEqual( actual instanceof Results, true, 'returns expected value' );
+ t.strictEqual( actual.toDataView().buffer, buf, 'returns expected value' );
+ t.strictEqual( actual.toDataView().byteOffset, 16, 'returns expected value' );
+ t.strictEqual( actual.sum, expected.sum, 'returns expected value' );
+ t.strictEqual( Number( actual.count ), expected.count, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor for creating a fixed-width results object (ArrayBuffer, byteOffset, byteLength)', function test( t ) {
+ var expected;
+ var Results;
+ var actual;
+ var buf;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ buf = new ArrayBuffer( 1024 );
+ actual = new Results( buf, 16, 160 );
+
+ actual.sum = 11.7586;
+ actual.count = BigInt( 5 );
+
+ expected = {
+ 'sum': 11.7586,
+ 'count': 5
+ };
+
+ t.strictEqual( actual instanceof Results, true, 'returns expected value' );
+ t.strictEqual( actual.toDataView().buffer, buf, 'returns expected value' );
+ t.strictEqual( actual.toDataView().byteOffset, 16, 'returns expected value' );
+ t.strictEqual( actual.sum, expected.sum, 'returns expected value' );
+ t.strictEqual( Number( actual.count ), expected.count, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor which returns an instance having a method property', function test( t ) {
+ var Results;
+ var results;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ results = new Results();
+
+ t.strictEqual( results.method, 'NaN-aware summation', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor which returns an instance having a `toString` method', function test( t ) {
+ var Results;
+ var results;
+ var actual;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ results = new Results();
+
+ actual = results.toString();
+ t.strictEqual( typeof actual, 'string', 'returns expected value' );
+
+ actual = results.toString({
+ 'digits': 2
+ });
+ t.strictEqual( typeof actual, 'string', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor which returns an instance having a `toJSON` method', function test( t ) {
+ var Results;
+ var results;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ results = new Results();
+ t.strictEqual( typeof results.toJSON, 'function', 'returns expected value' );
+ t.strictEqual( typeof results.toJSON(), 'object', 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a constructor which returns an instance having a `toDataView` method', function test( t ) {
+ var Results;
+ var results;
+
+ Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+
+ results = new Results();
+ t.strictEqual( typeof results.toDataView, 'function', 'returns expected value' );
+ t.strictEqual( isDataView( results.toDataView() ), true, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `name` property', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.name, 'string', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having an `alignment` property', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.alignment, 'number', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `byteLength` property', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.byteLength, 'number', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `fields` property', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( isStringArray( Results.fields ), true, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `layout` property', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.layout, 'string', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `bufferOf` method', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.bufferOf, 'function', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `byteLengthOf` method', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.byteLengthOf, 'function', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `byteOffsetOf` method', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.byteOffsetOf, 'function', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `descriptionOf` method', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.descriptionOf, 'function', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having an `isStruct` method', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.isStruct, 'function', 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns a constructor having a `viewOf` method', function test( t ) {
+ var Results = resultsFactory( 'float64' );
+ t.strictEqual( typeof Results, 'function', 'returns expected value' );
+ t.strictEqual( typeof Results.viewOf, 'function', 'returns expected value' );
+ t.end();
+});