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@stdlib/napi-argv-complex64

Convert a Node-API value to a single-precision complex floating-point number.

https://github.com/stdlib-js/napi-argv-complex64

Science Score: 44.0%

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Keywords

addon cmplx complex complex64 float javascript macros napi native node node-js nodejs stdlib utilities utils
Last synced: 6 months ago · JSON representation ·

Repository

Convert a Node-API value to a single-precision complex floating-point number.

Basic Info
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  • Stars: 1
  • Watchers: 3
  • Forks: 0
  • Open Issues: 0
  • Releases: 0
Topics
addon cmplx complex complex64 float javascript macros napi native node node-js nodejs stdlib utilities utils
Created almost 2 years ago · Last pushed 8 months ago
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Readme Changelog Contributing License Code of conduct Citation Security

README.md

About stdlib...

We 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.

The 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.

When 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.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

argv_complex64

NPM version Build Status Coverage Status <!-- dependencies -->

Convert a Node-API value to a single-precision complex floating-point number.

## Installation ```bash npm install @stdlib/napi-argv-complex64 ```
## Usage ```javascript var headerDir = require( '@stdlib/napi-argv-complex64' ); ``` #### headerDir Absolute file path for the directory containing header files for C APIs. ```javascript var dir = headerDir; // returns ```
## Examples ```javascript var headerDir = require( '@stdlib/napi-argv-complex64' ); console.log( headerDir ); // => ```
## C APIs
### Usage ```c #include "stdlib/napi/argv_complex64.h" ``` #### stdlib_napi_argv_complex64( env, value, \*out, \*message, \*err ) Converts a Node-API value to a single-precision complex floating-point number. ```c #include "stdlib/napi/argv_complex64.h" #include "stdlib/complex/float32/ctor.h" #include static napi_value addon( napi_env env, napi_callback_info info ) { napi_value value; // ... stdlib_complex64_t out; napi_value err; napi_status status = stdlib_napi_argv_complex64( env, value, &out, "Must be a complex number.", &err ); assert( status == napi_ok ); if ( err != NULL ) { assert( napi_throw( env, err ) == napi_ok ); return NULL; } // ... } ``` The function accepts the following arguments: - **env**: `[in] napi_env` environment under which the function is invoked. - **value**: `[in] napi_value` Node-API value. - **out**: `[out] stdlib_complex64_t*` destination for storing output value. - **message**: `[in] char*` error message. - **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`. ```c napi_status stdlib_napi_argv_complex64( const napi_env env, const napi_value value, stdlib_complex64_t *out, const char *message, napi_value *err ); ``` The function returns a `napi_status` status code indicating success or failure (returns `napi_ok` if success). #### STDLIB_NAPI_ARGV_COMPLEX64( env, name, argv, index ) Macro for converting an add-on callback argument to a single-precision complex floating-point number. ```c #include "stdlib/napi/argv_complex64.h" #include "stdlib/napi/argv.h" #include "stdlib/complex/float32/ctor.h" #include static stdlib_complex64_t fcn( const stdlib_complex64_t v ) { return v; } // ... static napi_value addon( napi_env env, napi_callback_info info ) { // Retrieve add-on callback arguments: STDLIB_NAPI_ARGV( env, info, argv, argc, 1 ); // Convert the first argument to a C type: STDLIB_NAPI_ARGV_COMPLEX64( env, value, argv, 0 ); // ... stdlib_complex64_t out = fcn( value ); } ``` The macro expects the following arguments: - **env**: environment under which the callback is invoked. - **name**: output variable name. - **argv**: name of the variable containing add-on callback arguments. - **index**: argument index.

* * * ## Notice This 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. For 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]. #### Community [![Chat][chat-image]][chat-url] --- ## License See [LICENSE][stdlib-license]. ## Copyright Copyright © 2016-2025. The Stdlib [Authors][stdlib-authors].

Owner

  • Name: stdlib
  • Login: stdlib-js
  • Kind: organization

Standard library for JavaScript.

Citation (CITATION.cff) 

cff-version: 1.2.0
title: stdlib
message: >-
  If you use this software, please cite it using the
  metadata from this file.

type: software

authors:
  - name: The Stdlib Authors
    url: https://github.com/stdlib-js/stdlib/graphs/contributors

repository-code: https://github.com/stdlib-js/stdlib
url: https://stdlib.io

abstract: |
  Standard library for JavaScript and Node.js.

keywords:
  - JavaScript
  - Node.js
  - TypeScript
  - standard library
  - scientific computing
  - numerical computing
  - statistical computing

license: Apache-2.0 AND BSL-1.0

date-released: 2016

GitHub Events

Total
  • Push event: 6
Last Year
  • Push event: 6

Packages

  • Total packages: 1
  • Total downloads:
    • npm 47 last-month
  • Total dependent packages: 0
  • Total dependent repositories: 0
  • Total versions: 2
  • Total maintainers: 4
npmjs.org: @stdlib/napi-argv-complex64

Convert a Node-API value to a single-precision complex floating-point number.

  • Homepage: https://stdlib.io
  • License: Apache-2.0
  • Latest release: 0.0.2
    published over 1 year ago
  • Versions: 2
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Downloads: 47 Last month
Rankings
Dependent repos count: 28.9%
Average: 42.1%
Dependent packages count: 42.1%
Downloads: 55.2%
Maintainers (4)
planeshifter rreusser stdlib-bot kgryte
Funding
  • type: opencollective
  • url: https://opencollective.com/stdlib
Last synced: 6 months ago

Dependencies

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