{"id":26711339,"url":"https://github.com/stdlib-js/blas-sswap","last_synced_at":"2026-03-14T03:08:20.875Z","repository":{"id":50722641,"uuid":"377266753","full_name":"stdlib-js/blas-sswap","owner":"stdlib-js","description":"Interchange two single-precision floating-point vectors.","archived":false,"fork":false,"pushed_at":"2025-03-10T02:27:23.000Z","size":5165,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"main","last_synced_at":"2025-04-13T17:17:23.222Z","etag":null,"topics":["algebra","array","blas","float32","interchange","javascript","level-1","linear","math","mathematics","ndarray","node","node-js","nodejs","single","sswap","stdlib","subroutines","swap","vector"],"latest_commit_sha":null,"homepage":"https://github.com/stdlib-js/stdlib","language":"JavaScript","has_issues":false,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/stdlib-js.png","metadata":{"files":{"readme":"README.md","changelog":"CHANGELOG.md","contributing":"CONTRIBUTING.md","funding":null,"license":"LICENSE","code_of_conduct":"CODE_OF_CONDUCT.md","threat_model":null,"audit":null,"citation":"CITATION.cff","codeowners":null,"security":"SECURITY.md","support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null},"funding":{"github":["stdlib-js"],"open_collective":"stdlib","tidelift":"npm/@stdlib/stdlib"}},"created_at":"2021-06-15T19:00:32.000Z","updated_at":"2025-03-10T01:40:33.000Z","dependencies_parsed_at":"2023-10-05T09:50:21.535Z","dependency_job_id":"0d1fe6a2-f54f-44f2-acaf-6b8c0cd986da","html_url":"https://github.com/stdlib-js/blas-sswap","commit_stats":{"total_commits":43,"total_committers":1,"mean_commits":43.0,"dds":0.0,"last_synced_commit":"589db634ff7ef4c495bd812db6cc17ece92814a4"},"previous_names":[],"tags_count":22,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stdlib-js%2Fblas-sswap","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stdlib-js%2Fblas-sswap/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stdlib-js%2Fblas-sswap/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stdlib-js%2Fblas-sswap/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/stdlib-js","download_url":"https://codeload.github.com/stdlib-js/blas-sswap/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":248771026,"owners_count":21159075,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["algebra","array","blas","float32","interchange","javascript","level-1","linear","math","mathematics","ndarray","node","node-js","nodejs","single","sswap","stdlib","subroutines","swap","vector"],"created_at":"2025-03-27T10:21:10.580Z","updated_at":"2026-03-14T03:08:20.839Z","avatar_url":"https://github.com/stdlib-js.png","language":"JavaScript","funding_links":["https://github.com/sponsors/stdlib-js","https://opencollective.com/stdlib","https://tidelift.com/funding/github/npm/@stdlib/stdlib"],"categories":[],"sub_categories":[],"readme":"\u003c!--\n\n@license Apache-2.0\n\nCopyright (c) 2020 The Stdlib Authors.\n\nLicensed under the Apache License, Version 2.0 (the \"License\");\nyou may not use this file except in compliance with the License.\nYou may obtain a copy of the License at\n\n   http://www.apache.org/licenses/LICENSE-2.0\n\nUnless required by applicable law or agreed to in writing, software\ndistributed under the License is distributed on an \"AS IS\" BASIS,\nWITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\nSee the License for the specific language governing permissions and\nlimitations under the License.\n\n--\u003e\n\n\n\u003cdetails\u003e\n  \u003csummary\u003e\n    About stdlib...\n  \u003c/summary\u003e\n  \u003cp\u003eWe believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.\u003c/p\u003e\n  \u003cp\u003eThe library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.\u003c/p\u003e\n  \u003cp\u003eWhen you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.\u003c/p\u003e\n  \u003cp\u003eTo join us in bringing numerical computing to the web, get started by checking us out on \u003ca href=\"https://github.com/stdlib-js/stdlib\"\u003eGitHub\u003c/a\u003e, and please consider \u003ca href=\"https://opencollective.com/stdlib\"\u003efinancially supporting stdlib\u003c/a\u003e. We greatly appreciate your continued support!\u003c/p\u003e\n\u003c/details\u003e\n\n# sswap\n\n[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] \u003c!-- [![dependencies][dependencies-image]][dependencies-url] --\u003e\n\n\u003e Interchange two single-precision floating-point vectors.\n\n\u003csection class=\"intro\"\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.intro --\u003e\n\n\u003csection class=\"installation\"\u003e\n\n## Installation\n\n```bash\nnpm install @stdlib/blas-sswap\n```\n\nAlternatively,\n\n-   To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]).\n-   If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions).\n-   For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]).\n\nThe [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships.\n\nTo view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.\n\n\u003c/section\u003e\n\n\u003csection class=\"usage\"\u003e\n\n## Usage\n\n```javascript\nvar sswap = require( '@stdlib/blas-sswap' );\n```\n\n#### sswap( x, y\\[, dim] )\n\nInterchanges two single-precision floating-point vectors `x` and `y`.\n\n```javascript\nvar Float32Array = require( '@stdlib/array-float32' );\nvar array = require( '@stdlib/ndarray-array' );\n\nvar x = array( new Float32Array( [ 4.0, 2.0, -3.0, 5.0, -1.0 ] ) );\nvar y = array( new Float32Array( [ 2.0, 6.0, -1.0, -4.0, 8.0 ] ) );\n\nsswap( x, y );\n\nvar xbuf = x.data;\n// returns \u003cFloat32Array\u003e[ 2.0, 6.0, -1.0, -4.0, 8.0 ]\n\nvar ybuf = y.data;\n// returns \u003cFloat32Array\u003e[ 4.0, 2.0, -3.0, 5.0, -1.0 ]\n```\n\nThe function has the following parameters:\n\n-   **x**: a non-zero-dimensional [`ndarray`][@stdlib/ndarray/ctor] whose underlying data type is `float32`. Must have the same shape as `y`.\n-   **y**: a non-zero-dimensional [`ndarray`][@stdlib/ndarray/ctor] whose underlying data type is `float32`. Must have the same shape as `x`.\n-   **dim**: dimension along which to interchange vectors. Must be a negative integer. Negative indices are resolved relative to the last array dimension, with the last dimension corresponding to `-1`. Default: `-1`.\n\nFor multi-dimensional input [`ndarrays`][@stdlib/ndarray/ctor], the function performs batched computation, such that the function interchanges each pair of vectors in `x` and `y` according to the specified dimension index.\n\n```javascript\nvar Float32Array = require( '@stdlib/array-float32' );\nvar array = require( '@stdlib/ndarray-array' );\n\nvar opts = {\n    'shape': [ 2, 3 ]\n};\nvar x = array( new Float32Array( [ 4.0, 2.0, -3.0, 5.0, -1.0, 3.0 ] ), opts );\nvar y = array( new Float32Array( [ 2.0, 6.0, -1.0, -4.0, 8.0, 2.0 ] ), opts );\n\nvar v1 = x.get( 0, 0 );\n// returns 4.0\n\nvar v2 = y.get( 0, 0 );\n// returns 2.0\n\nsswap( x, y );\n\nv1 = x.get( 0, 0 );\n// returns 2.0\n\nv2 = y.get( 0, 0 );\n// returns 4.0\n```\n\n\u003c/section\u003e\n\n\u003c!-- /.usage --\u003e\n\n\u003csection class=\"notes\"\u003e\n\n## Notes\n\n-   Both input [`ndarrays`][@stdlib/ndarray/ctor] must have the same shape.\n-   Negative indices are resolved relative to the last [`ndarray`][@stdlib/ndarray/ctor] dimension, with the last dimension corresponding to `-1`.\n-   For multi-dimensional [`ndarrays`][@stdlib/ndarray/ctor], batched computation effectively means swapping all of `x` with all of `y`; however, the choice of `dim` will significantly affect performance. For best performance, specify a `dim` which best aligns with the [memory layout][@stdlib/ndarray/orders] of provided [`ndarrays`][@stdlib/ndarray/ctor].\n-   `sswap()` provides a higher-level interface to the [BLAS][blas] level 1 function [`sswap`][@stdlib/blas/base/sswap].\n\n\u003c/section\u003e\n\n\u003c!-- /.notes --\u003e\n\n\u003csection class=\"examples\"\u003e\n\n## Examples\n\n\u003c!-- eslint no-undef: \"error\" --\u003e\n\n```javascript\nvar discreteUniform = require( '@stdlib/random-array-discrete-uniform' );\nvar ndarray2array = require( '@stdlib/ndarray-to-array' );\nvar array = require( '@stdlib/ndarray-array' );\nvar sswap = require( '@stdlib/blas-sswap' );\n\nvar opts = {\n    'dtype': 'float32'\n};\n\nvar x = array( discreteUniform( 10, 0, 100, opts ), {\n    'shape': [ 5, 2 ]\n});\nconsole.log( ndarray2array( x ) );\n\nvar y = array( discreteUniform( 10, 0, 10, opts ), {\n    'shape': x.shape\n});\nconsole.log( ndarray2array( y ) );\n\nsswap( x, y );\nconsole.log( ndarray2array( x ) );\nconsole.log( ndarray2array( y ) );\n```\n\n\u003c/section\u003e\n\n\u003c!-- /.examples --\u003e\n\n\u003c!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. --\u003e\n\n\u003csection class=\"related\"\u003e\n\n* * *\n\n## See Also\n\n-   \u003cspan class=\"package-name\"\u003e[`@stdlib/blas-base/sswap`][@stdlib/blas/base/sswap]\u003c/span\u003e\u003cspan class=\"delimiter\"\u003e: \u003c/span\u003e\u003cspan class=\"description\"\u003einterchange two single-precision floating-point vectors.\u003c/span\u003e\n-   \u003cspan class=\"package-name\"\u003e[`@stdlib/blas-dswap`][@stdlib/blas/dswap]\u003c/span\u003e\u003cspan class=\"delimiter\"\u003e: \u003c/span\u003e\u003cspan class=\"description\"\u003einterchange two double-precision floating-point vectors.\u003c/span\u003e\n-   \u003cspan class=\"package-name\"\u003e[`@stdlib/blas-gswap`][@stdlib/blas/gswap]\u003c/span\u003e\u003cspan class=\"delimiter\"\u003e: \u003c/span\u003e\u003cspan class=\"description\"\u003einterchange two vectors.\u003c/span\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.related --\u003e\n\n\u003c!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --\u003e\n\n\n\u003csection class=\"main-repo\" \u003e\n\n* * *\n\n## Notice\n\nThis package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.\n\nFor more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].\n\n#### Community\n\n[![Chat][chat-image]][chat-url]\n\n---\n\n## License\n\nSee [LICENSE][stdlib-license].\n\n\n## Copyright\n\nCopyright \u0026copy; 2016-2026. The Stdlib [Authors][stdlib-authors].\n\n\u003c/section\u003e\n\n\u003c!-- /.stdlib --\u003e\n\n\u003c!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --\u003e\n\n\u003csection class=\"links\"\u003e\n\n[npm-image]: http://img.shields.io/npm/v/@stdlib/blas-sswap.svg\n[npm-url]: https://npmjs.org/package/@stdlib/blas-sswap\n\n[test-image]: https://github.com/stdlib-js/blas-sswap/actions/workflows/test.yml/badge.svg?branch=main\n[test-url]: https://github.com/stdlib-js/blas-sswap/actions/workflows/test.yml?query=branch:main\n\n[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/blas-sswap/main.svg\n[coverage-url]: https://codecov.io/github/stdlib-js/blas-sswap?branch=main\n\n\u003c!--\n\n[dependencies-image]: https://img.shields.io/david/stdlib-js/blas-sswap.svg\n[dependencies-url]: https://david-dm.org/stdlib-js/blas-sswap/main\n\n--\u003e\n\n[chat-image]: https://img.shields.io/badge/zulip-join_chat-brightgreen.svg\n[chat-url]: https://stdlib.zulipchat.com\n\n[stdlib]: https://github.com/stdlib-js/stdlib\n\n[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors\n\n[umd]: https://github.com/umdjs/umd\n[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules\n\n[deno-url]: https://github.com/stdlib-js/blas-sswap/tree/deno\n[deno-readme]: https://github.com/stdlib-js/blas-sswap/blob/deno/README.md\n[umd-url]: https://github.com/stdlib-js/blas-sswap/tree/umd\n[umd-readme]: https://github.com/stdlib-js/blas-sswap/blob/umd/README.md\n[esm-url]: https://github.com/stdlib-js/blas-sswap/tree/esm\n[esm-readme]: https://github.com/stdlib-js/blas-sswap/blob/esm/README.md\n[branches-url]: https://github.com/stdlib-js/blas-sswap/blob/main/branches.md\n\n[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/blas-sswap/main/LICENSE\n\n[blas]: http://www.netlib.org/blas\n\n[@stdlib/ndarray/ctor]: https://github.com/stdlib-js/ndarray-ctor\n\n[@stdlib/ndarray/orders]: https://github.com/stdlib-js/ndarray-orders\n\n[@stdlib/blas/base/sswap]: https://github.com/stdlib-js/blas-base-sswap\n\n\u003c!-- \u003crelated-links\u003e --\u003e\n\n[@stdlib/blas/dswap]: https://github.com/stdlib-js/blas-dswap\n\n[@stdlib/blas/gswap]: https://github.com/stdlib-js/blas-gswap\n\n\u003c!-- \u003c/related-links\u003e --\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.links --\u003e\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstdlib-js%2Fblas-sswap","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fstdlib-js%2Fblas-sswap","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstdlib-js%2Fblas-sswap/lists"}