diff --git a/lib/node_modules/@stdlib/blas/ext/base/gsum/README.md b/lib/node_modules/@stdlib/blas/ext/base/gsum/README.md
index 8d66fdc00a8d..f297047df3b4 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gsum/README.md
+++ b/lib/node_modules/@stdlib/blas/ext/base/gsum/README.md
@@ -109,6 +109,7 @@ var v = gsum.ndarray( 4, 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 ([`dsum`][@stdlib/blas/ext/base/dsum], [`ssum`][@stdlib/blas/ext/base/ssum], etc.) are likely to be significantly more performant.
@@ -167,6 +168,8 @@ console.log( v );
[mdn-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
+[@stdlib/array/base/accessor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/accessor
+
[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gsum/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/gsum/docs/types/index.d.ts
index 3271d19cf5a5..464318226669 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gsum/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/gsum/docs/types/index.d.ts
@@ -20,7 +20,12 @@
///
-import { NumericArray } from '@stdlib/types/array';
+import { NumericArray, Collection, AccessorArrayLike } from '@stdlib/types/array';
+
+/**
+* Input array.
+*/
+type InputArray = NumericArray | Collection | AccessorArrayLike;
/**
* Interface describing `gsum`.
@@ -40,7 +45,7 @@ interface Routine {
* var v = gsum( x.length, x, 1 );
* // returns 1.0
*/
- ( N: number, x: NumericArray, strideX: number ): number;
+ ( N: number, x: InputArray, strideX: number ): number;
/**
* Computes the sum of strided array elements using alternative indexing semantics.
@@ -57,7 +62,7 @@ interface Routine {
* var v = gsum.ndarray( x.length, x, 1, 0 );
* // returns 1.0
*/
- ndarray( N: number, x: NumericArray, strideX: number, offsetX: number ): number;
+ ndarray( N: number, x: InputArray, strideX: number, offsetX: number ): number;
}
/**
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gsum/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/gsum/docs/types/test.ts
index 03d1131022a8..ecb742e2b602 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gsum/docs/types/test.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/gsum/docs/types/test.ts
@@ -16,6 +16,7 @@
* limitations under the License.
*/
+import AccessorArray = require( '@stdlib/array/base/accessor' );
import gsum = require( './index' );
@@ -26,6 +27,7 @@ import gsum = require( './index' );
const x = new Float64Array( 10 );
gsum( x.length, x, 1 ); // $ExpectType number
+ gsum( x.length, new AccessorArray( x ), 1 ); // $ExpectType number
}
// The compiler throws an error if the function is provided a first argument which is not a number...
@@ -85,6 +87,7 @@ import gsum = require( './index' );
const x = new Float64Array( 10 );
gsum.ndarray( x.length, x, 1, 0 ); // $ExpectType number
+ gsum.ndarray( x.length, 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/gsum/test/test.main.js b/lib/node_modules/@stdlib/blas/ext/base/gsum/test/test.main.js
index 0a51a5be6b57..ad7a72fc0941 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gsum/test/test.main.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/gsum/test/test.main.js
@@ -22,6 +22,7 @@
var tape = require( 'tape' );
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 gsum = require( './../lib' );
@@ -66,6 +67,33 @@ tape( 'the function calculates the sum of all strided array elements', function
t.end();
});
+tape( 'the function 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 = gsum( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 3.0, 'returns expected value' );
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
+ v = gsum( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 3.0, 'returns expected value' );
+
+ x = [ -4.0, -4.0 ];
+ v = gsum( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( v, -8.0, 'returns expected value' );
+
+ x = [ NaN, 4.0 ];
+ v = gsum( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ x = [ 1.0, 1.0e100, 1.0, -1.0e100 ];
+ v = gsum( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 2.0, '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;
@@ -114,6 +142,27 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
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 = gsum( 4, toAccessorArray( x ), 2 );
+
+ t.strictEqual( v, 5.0, 'returns expected value' );
+ t.end();
+});
+
tape( 'the function supports a negative `stride` parameter', function test( t ) {
var x;
var v;
@@ -135,6 +184,27 @@ tape( 'the function supports a negative `stride` parameter', function test( t )
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 = gsum( 4, toAccessorArray( x ), -2 );
+
+ t.strictEqual( v, 5.0, 'returns expected value' );
+ t.end();
+});
+
tape( 'if provided a `stride` parameter equal to `0`, the function returns the sum of the first element repeated N times', function test( t ) {
var x;
var v;
@@ -147,6 +217,18 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns the s
t.end();
});
+tape( 'if provided a `stride` parameter equal to `0`, the function returns the sum of the first element repeated N times (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = gsum( x.length, toAccessorArray( x ), 0 );
+ t.strictEqual( v, 5.0, 'returns expected value' );
+
+ t.end();
+});
+
tape( 'the function supports view offsets', function test( t ) {
var x0;
var x1;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gsum/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/gsum/test/test.ndarray.js
index 9c256c5c3f14..a15f456c7948 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/gsum/test/test.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/gsum/test/test.ndarray.js
@@ -22,6 +22,7 @@
var tape = require( 'tape' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
var gsum = require( './../lib/ndarray.js' );
@@ -65,6 +66,33 @@ tape( 'the function calculates the sum of all strided array elements', function
t.end();
});
+tape( 'the function calculates the sum of all strided array elements', 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 = gsum( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 3.0, 'returns expected value' );
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
+ v = gsum( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 3.0, 'returns expected value' );
+
+ x = [ -4.0, -4.0 ];
+ v = gsum( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, -8.0, 'returns expected value' );
+
+ x = [ NaN, 4.0 ];
+ v = gsum( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ x = [ 1.0, 1.0e100, 1.0, -1.0e100 ];
+ v = gsum( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 2.0, '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;
@@ -113,6 +141,27 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
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 = gsum( 4, toAccessorArray( x ), 2, 0 );
+
+ t.strictEqual( v, 5.0, 'returns expected value' );
+ t.end();
+});
+
tape( 'the function supports a negative `stride` parameter', function test( t ) {
var x;
var v;
@@ -134,6 +183,27 @@ tape( 'the function supports a negative `stride` parameter', function test( t )
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 = gsum( 4, toAccessorArray( x ), -2, 6 );
+
+ t.strictEqual( v, 5.0, 'returns expected value' );
+ t.end();
+});
+
tape( 'if provided a `stride` parameter equal to `0`, the function returns the sum of the first element repeated N times', function test( t ) {
var x;
var v;
@@ -146,6 +216,18 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns the s
t.end();
});
+tape( 'if provided a `stride` parameter equal to `0`, the function returns the sum of the first element repeated N times (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = gsum( x.length, toAccessorArray( x ), 0, 0 );
+ t.strictEqual( v, 5.0, 'returns expected value' );
+
+ t.end();
+});
+
tape( 'the function supports an `offset` parameter', function test( t ) {
var x;
var v;
@@ -166,3 +248,24 @@ tape( 'the function supports an `offset` parameter', function test( t ) {
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 = gsum( 4, toAccessorArray( x ), 2, 1 );
+ t.strictEqual( v, 5.0, 'returns expected value' );
+
+ t.end();
+});