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unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"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":["addon","array","cmplx","complex","complex64","float","javascript","macros","napi","native","ndarray","node","node-js","nodejs","stdlib","strided","utilities","utils"],"created_at":"2024-12-01T23:13:42.332Z","updated_at":"2026-02-24T07:36:44.997Z","avatar_url":"https://github.com/stdlib-js.png","language":"C","readme":"\u003c!--\n\n@license Apache-2.0\n\nCopyright (c) 2022 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\u003c!-- lint disable maximum-heading-length --\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# argv_strided_complex64array\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 Convert a Node-API value representing a strided array to a single-precision complex floating-point array.\n\n\u003c!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. --\u003e\n\n\u003csection class=\"intro\"\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.intro --\u003e\n\n\u003c!-- Package usage documentation. --\u003e\n\n\u003csection class=\"installation\"\u003e\n\n## Installation\n\n```bash\nnpm install @stdlib/napi-argv-strided-complex64array\n```\n\n\u003c/section\u003e\n\n\u003csection class=\"usage\"\u003e\n\n## Usage\n\n```javascript\nvar headerDir = require( '@stdlib/napi-argv-strided-complex64array' );\n```\n\n#### headerDir\n\nAbsolute file path for the directory containing header files for C APIs.\n\n```javascript\nvar dir = headerDir;\n// returns \u003cstring\u003e\n```\n\n\u003c/section\u003e\n\n\u003c!-- /.usage --\u003e\n\n\u003c!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. --\u003e\n\n\u003csection class=\"notes\"\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.notes --\u003e\n\n\u003c!-- Package usage examples. --\u003e\n\n\u003csection class=\"examples\"\u003e\n\n## Examples\n\n```javascript\nvar headerDir = require( '@stdlib/napi-argv-strided-complex64array' );\n\nconsole.log( headerDir );\n// =\u003e \u003cstring\u003e\n```\n\n\u003c/section\u003e\n\n\u003c!-- /.examples --\u003e\n\n\u003c!-- C interface documentation. --\u003e\n\n* * *\n\n\u003csection class=\"c\"\u003e\n\n## C APIs\n\n\u003c!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. --\u003e\n\n\u003csection class=\"intro\"\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.intro --\u003e\n\n\u003c!-- C usage documentation. --\u003e\n\n\u003csection class=\"usage\"\u003e\n\n### Usage\n\n```c\n#include \"stdlib/napi/argv_strided_complex64array.h\"\n```\n\n#### stdlib_napi_argv_strided_complex64array( env, N, stride, value, \\*\\*data, \\*message1, \\*message2, \\*err )\n\nConverts a Node-API value representing a strided array to a single-precision complex floating-point array.\n\n```c\n#include \"stdlib/napi/argv_strided_complex64array.h\"\n#include \u003cnode_api.h\u003e\n#include \u003cstdint.h\u003e\n\nstatic napi_value addon( napi_env env, napi_callback_info info ) {\n    napi_value value;\n\n    // ...\n\n    int64_t N = 100;\n    int64_t stride = 1;\n\n    // ...\n\n    float *X;\n    napi_value err;\n    napi_status status = stdlib_napi_argv_strided_complex64array( env, N, stride, value, \u0026X, \"Must be a typed array.\", \"Must have sufficient elements.\", \u0026err );\n    assert( status == napi_ok );\n    if ( err != NULL ) {\n        assert( napi_throw( env, err ) == napi_ok );\n        return NULL;\n    }\n\n    // ...\n}\n```\n\nThe function accepts the following arguments:\n\n-   **env**: `[in] napi_env` environment under which the function is invoked.\n-   **N**: `[in] int64_t` number of indexed elements.\n-   **stride**: `[in] int64_t` stride length.\n-   **value**: `[in] napi_value` Node-API value.\n-   **data**: `[out] float**` pointer for returning a reference to the output array.\n-   **message1**: `[in] char*` error message if a value is not a `Float32Array`.\n-   **message2**: `[in] char*` error message if a value has insufficient elements.\n-   **err**: `[out] napi_value*` pointer for storing a JavaScript error. If not provided a number, the function sets `err` with a JavaScript error; otherwise, `err` is set to `NULL`.\n\n```c\nnapi_status stdlib_napi_argv_strided_complex64array( const napi_env env, const int64_t N, const int64_t stride, const napi_value value, float **data, const char *message1, const char *message2, napi_value *err );\n```\n\nThe function returns a `napi_status` status code indicating success or failure (returns `napi_ok` if success).\n\n#### STDLIB_NAPI_ARGV_STRIDED_COMPLEX64ARRAY( env, X, N, stride, argv, index )\n\nMacro for converting an add-on callback argument to a strided single-precision complex floating-point array.\n\n```c\n#include \"stdlib/napi/argv_strided_complex64array.h\"\n#include \"stdlib/napi_argv_int64.h\"\n#include \"stdlib/napi/argv.h\"\n#include \u003cnode_api.h\u003e\n#include \u003cstdint.h\u003e\n\nstatic void fcn( const int64_t N, const float *X, const int64_t strideX, float *Y, const int64_t strideY ) {\n    int64_t i;\n    for ( i = 0; i \u003c N*2; i += 2 ) {\n        Y[ i*strideY ] = X[ i*strideX ];\n        Y[ (i*strideY)+1 ] = X[ (i*strideX)+1 ];\n    }\n}\n\n// ...\n\nstatic napi_value addon( napi_env env, napi_callback_info info ) {\n    // Retrieve add-on callback arguments:\n    STDLIB_NAPI_ARGV( env, info, argv, argc, 5 );\n\n    // Convert the number of indexed elements to a C type:\n    STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );\n\n    // Convert the stride arguments to C types:\n    STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 2 );\n    STDLIB_NAPI_ARGV_INT64( env, strideY, argv, 4 );\n\n    // Convert the arrays a C types:\n    STDLIB_NAPI_ARGV_STRIDED_COMPLEX64ARRAY( env, X, N, strideX, argv, 1 );\n    STDLIB_NAPI_ARGV_STRIDED_COMPLEX64ARRAY( env, Y, N, strideY, argv, 3 );\n\n    // ...\n\n    fcn( N, X, strideX, Y, strideY );\n}\n```\n\nThe macro expects the following arguments:\n\n-   **env**: environment under which the callback is invoked.\n-   **X**: output variable name for the array.\n-   **N**: number of indexed elements.\n-   **stride**: stride length.\n-   **argv**: name of the variable containing add-on callback arguments.\n-   **index**: argument index.\n\n\u003c/section\u003e\n\n\u003c!-- /.usage --\u003e\n\n\u003c!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. --\u003e\n\n\u003csection class=\"notes\"\u003e\n\n## Notes\n\n-   A single-precision complex floating-point array is a single-precision floating-point array having interleaved real and imaginary components, such that each element of the single-precision complex floating-point array consists of two adjacent (in memory) single-precision floating-point numbers.\n\n\u003c/section\u003e\n\n\u003c!-- /.notes --\u003e\n\n\u003c!-- C API usage examples. --\u003e\n\n\u003csection class=\"examples\"\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.examples --\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.c --\u003e\n\n\u003c!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. --\u003e\n\n\u003csection class=\"references\"\u003e\n\n\u003c/section\u003e\n\n\u003c!-- /.references --\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\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/napi-argv-strided-complex64array.svg\n[npm-url]: https://npmjs.org/package/@stdlib/napi-argv-strided-complex64array\n\n[test-image]: https://github.com/stdlib-js/napi-argv-strided-complex64array/actions/workflows/test.yml/badge.svg?branch=main\n[test-url]: https://github.com/stdlib-js/napi-argv-strided-complex64array/actions/workflows/test.yml?query=branch:main\n\n[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/napi-argv-strided-complex64array/main.svg\n[coverage-url]: https://codecov.io/github/stdlib-js/napi-argv-strided-complex64array?branch=main\n\n\u003c!--\n\n[dependencies-image]: https://img.shields.io/david/stdlib-js/napi-argv-strided-complex64array.svg\n[dependencies-url]: https://david-dm.org/stdlib-js/napi-argv-strided-complex64array/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[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/napi-argv-strided-complex64array/main/LICENSE\n\n\u003c/section\u003e\n\n\u003c!-- /.links --\u003e\n","funding_links":["https://github.com/sponsors/stdlib-js","https://opencollective.com/stdlib","https://tidelift.com/funding/github/npm/@stdlib/stdlib"],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstdlib-js%2Fnapi-argv-strided-complex64array","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fstdlib-js%2Fnapi-argv-strided-complex64array","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstdlib-js%2Fnapi-argv-strided-complex64array/lists"}