diff --git a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/README.md b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/README.md
index 2a09804a0164..0d25e1b75c0a 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/README.md
+++ b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/README.md
@@ -109,6 +109,7 @@ var v = gapxsum.ndarray( 4, 5.0, x, 2, 1 );
## Notes
- If `N <= 0`, both functions return `0.0`.
+- Both functions support array-like objects having getter and setter accessors for array element access (e.g., [`@stdlib/array/base/accessor`][@stdlib/array/base/accessor])
- Depending on the environment, the typed versions ([`dapxsum`][@stdlib/blas/ext/base/dapxsum], [`sapxsum`][@stdlib/blas/ext/base/sapxsum], etc.) are likely to be significantly more performant.
@@ -169,6 +170,8 @@ console.log( v );
[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+[@stdlib/array/base/accessor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/accessor
+
[@stdlib/blas/ext/base/dapxsum]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/blas/ext/base/dapxsum
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/docs/types/index.d.ts
index 84712dc38355..62cc754716ab 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/docs/types/index.d.ts
@@ -20,7 +20,11 @@
///
-import { NumericArray } from '@stdlib/types/array';
+import { NumericArray, Collection, AccessorArrayLike } from '@stdlib/types/array';
+/**
+* Input array.
+*/
+type InputArray = NumericArray | Collection | AccessorArrayLike;
/**
* Interface describing `gapxsum`.
@@ -41,7 +45,7 @@ interface Routine {
* var v = gapxsum( x.length, 5.0, x, 1 );
* // returns 16.0
*/
- ( N: number, alpha: number, x: NumericArray, strideX: number ): number;
+ ( N: number, alpha: number, x: InputArray, strideX: number ): number;
/**
* Adds a scalar constant to each strided array element and computes the sum using alternative indexing semantics.
@@ -59,7 +63,7 @@ interface Routine {
* var v = gapxsum.ndarray( x.length, 5.0, x, 1, 0 );
* // returns 16.0
*/
- ndarray( N: number, alpha: number, x: NumericArray, strideX: number, offsetX: number ): number;
+ ndarray( N: number, alpha: number, x: InputArray, strideX: number, offsetX: number ): number;
}
/**
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/docs/types/test.ts
index ff4c89d1185f..e455b2e3fe0c 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/docs/types/test.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/docs/types/test.ts
@@ -16,6 +16,7 @@
* limitations under the License.
*/
+import AccessorArray = require( '@stdlib/array/base/accessor' );
import gapxsum = require( './index' );
@@ -26,6 +27,7 @@ import gapxsum = require( './index' );
const x = new Float64Array( 10 );
gapxsum( x.length, 5.0, x, 1 ); // $ExpectType number
+ gapxsum( x.length, 5.0, new AccessorArray( x ), 1 ); // $ExpectType number
}
// The compiler throws an error if the function is provided a first argument which is not a number...
@@ -100,6 +102,7 @@ import gapxsum = require( './index' );
const x = new Float64Array( 10 );
gapxsum.ndarray( x.length, 5.0, x, 1, 0 ); // $ExpectType number
+ gapxsum.ndarray( x.length, 5.0, new AccessorArray( x ), 1, 0 ); // $ExpectType number
}
// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/test/test.main.js b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/test/test.main.js
index 3105c7d8c1aa..c01d1cbd24a3 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/test/test.main.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/test/test.main.js
@@ -21,8 +21,8 @@
// MODULES //
var tape = require( 'tape' );
-var floor = require( '@stdlib/math/base/special/floor' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
var Float64Array = require( '@stdlib/array/float64' );
var gapxsum = require( './../lib' );
@@ -67,6 +67,33 @@ tape( 'the function adds a constant and calculates the sum of all strided array
t.end();
});
+tape( 'the function adds a constant and calculates the sum of all strided array elements (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0, 0.0, -3.0, 3.0 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 48.0, 'returns expected value' );
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 33.0, 'returns expected value' );
+
+ x = [ -4.0, -4.0 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 2.0, 'returns expected value' );
+
+ x = [ NaN, 4.0 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ x = [ 1.0, 1e100, 1.0, -1.0e100 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 12.0, 'returns expected value' );
+
+ t.end();
+});
+
tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `0.0`', function test( t ) {
var x;
var v;
@@ -95,7 +122,6 @@ tape( 'if provided an `N` parameter equal to `1`, the function returns the first
});
tape( 'the function supports a `stride` parameter', function test( t ) {
- var N;
var x;
var v;
@@ -110,15 +136,34 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
2.0
];
- N = floor( x.length / 2 );
- v = gapxsum( N, 5.0, x, 2 );
+ v = gapxsum( 4, 5.0, x, 2 );
+
+ t.strictEqual( v, 25.0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `stride` parameter (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [
+ 1.0, // 0
+ 2.0,
+ 2.0, // 1
+ -7.0,
+ -2.0, // 2
+ 3.0,
+ 4.0, // 3
+ 2.0
+ ];
+
+ v = gapxsum( 4, 5.0, toAccessorArray( x ), 2 );
t.strictEqual( v, 25.0, 'returns expected value' );
t.end();
});
tape( 'the function supports a negative `stride` parameter', function test( t ) {
- var N;
var x;
var v;
@@ -133,8 +178,28 @@ tape( 'the function supports a negative `stride` parameter', function test( t )
2.0
];
- N = floor( x.length / 2 );
- v = gapxsum( N, 5.0, x, -2 );
+ v = gapxsum( 4, 5.0, x, -2 );
+
+ t.strictEqual( v, 25.0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a negative `stride` parameter (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [
+ 1.0, // 3
+ 2.0,
+ 2.0, // 2
+ -7.0,
+ -2.0, // 1
+ 3.0,
+ 4.0, // 0
+ 2.0
+ ];
+
+ v = gapxsum( 4, 5.0, toAccessorArray( x ), -2 );
t.strictEqual( v, 25.0, 'returns expected value' );
t.end();
@@ -155,7 +220,6 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns the f
tape( 'the function supports view offsets', function test( t ) {
var x0;
var x1;
- var N;
var v;
x0 = new Float64Array([
@@ -171,9 +235,8 @@ tape( 'the function supports view offsets', function test( t ) {
]);
x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
- N = floor(x1.length / 2);
- v = gapxsum( N, 5.0, x1, 2 );
+ v = gapxsum( 4, 5.0, x1, 2 );
t.strictEqual( v, 25.0, 'returns expected value' );
t.end();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/test/test.ndarray.js
index e261c3eedc22..7faa59a962dc 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gapxsum/test/test.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/gapxsum/test/test.ndarray.js
@@ -21,8 +21,8 @@
// MODULES //
var tape = require( 'tape' );
-var floor = require( '@stdlib/math/base/special/floor' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
var gapxsum = require( './../lib/ndarray.js' );
@@ -66,6 +66,33 @@ tape( 'the function adds a constant and calculates the sum of all strided array
t.end();
});
+tape( 'the function adds a constant and calculates the sum of all strided array elements (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0, 0.0, -3.0, 3.0 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 48.0, 'returns expected value' );
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 33.0, 'returns expected value' );
+
+ x = [ -4.0, -4.0 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 2.0, 'returns expected value' );
+
+ x = [ NaN, 4.0 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ x = [ 1.0, 1.0e100, 1.0, -1.0e100 ];
+ v = gapxsum( x.length, 5.0, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 12.0, 'returns expected value' );
+
+ t.end();
+});
+
tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `0.0`', function test( t ) {
var x;
var v;
@@ -94,7 +121,6 @@ tape( 'if provided an `N` parameter equal to `1`, the function returns the first
});
tape( 'the function supports a `stride` parameter', function test( t ) {
- var N;
var x;
var v;
@@ -109,15 +135,34 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
2.0
];
- N = floor( x.length / 2 );
- v = gapxsum( N, 5.0, x, 2, 0 );
+ v = gapxsum( 4, 5.0, x, 2, 0 );
+
+ t.strictEqual( v, 25.0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `stride` parameter (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [
+ 1.0, // 0
+ 2.0,
+ 2.0, // 1
+ -7.0,
+ -2.0, // 2
+ 3.0,
+ 4.0, // 3
+ 2.0
+ ];
+
+ v = gapxsum( 4, 5.0, toAccessorArray( x ), 2, 0 );
t.strictEqual( v, 25.0, 'returns expected value' );
t.end();
});
tape( 'the function supports a negative `stride` parameter', function test( t ) {
- var N;
var x;
var v;
@@ -132,8 +177,28 @@ tape( 'the function supports a negative `stride` parameter', function test( t )
2.0
];
- N = floor( x.length / 2 );
- v = gapxsum( N, 5.0, x, -2, 6 );
+ v = gapxsum( 4, 5.0, x, -2, 6 );
+
+ t.strictEqual( v, 25.0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a negative `stride` parameter (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [
+ 1.0, // 3
+ 2.0,
+ 2.0, // 2
+ -7.0,
+ -2.0, // 1
+ 3.0,
+ 4.0, // 0
+ 2.0
+ ];
+
+ v = gapxsum( 4, 5.0, toAccessorArray( x ), -2, 6 );
t.strictEqual( v, 25.0, 'returns expected value' );
t.end();
@@ -152,7 +217,6 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns the f
});
tape( 'the function supports an `offset` parameter', function test( t ) {
- var N;
var x;
var v;
@@ -166,9 +230,29 @@ tape( 'the function supports an `offset` parameter', function test( t ) {
3.0,
4.0 // 3
];
- N = floor( x.length / 2 );
- v = gapxsum( N, 5.0, x, 2, 1 );
+ v = gapxsum( 4, 5.0, x, 2, 1 );
+ t.strictEqual( v, 25.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `offset` parameter (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [
+ 2.0,
+ 1.0, // 0
+ 2.0,
+ -2.0, // 1
+ -2.0,
+ 2.0, // 2
+ 3.0,
+ 4.0 // 3
+ ];
+
+ v = gapxsum( 4, 5.0, toAccessorArray( x ), 2, 1 );
t.strictEqual( v, 25.0, 'returns expected value' );
t.end();