@stdlib/strided-napi-binary v0.2.2
Binary
C API for registering a Node-API module exporting a strided array interface for applying a binary callback to input strided arrays.
Installation
npm install @stdlib/strided-napi-binary
Usage
var headerDir = require( '@stdlib/strided-napi-binary' );
headerDir
Absolute file path for the directory containing header files for C APIs.
var dir = headerDir;
// returns <string>
Examples
var headerDir = require( '@stdlib/strided-napi-binary' );
console.log( headerDir );
// => <string>
C APIs
Usage
#include "stdlib/strided/napi/binary.h"
stdlib_strided_napi_binary( env, info, *obj )
Invokes a strided array interface which applies a binary callback to input strided arrays based on provided JavaScript arguments.
#include "stdlib/strided/base/function_object.h"
#include <node_api.h>
// ...
static const struct StridedFunctionObject obj = {...};
// ...
/**
* Receives JavaScript callback invocation data.
*
* @param env environment under which the function is invoked
* @param info callback data
* @return Node-API value
*/
napi_value addon( napi_env env, napi_callback_info info ) {
stdlib_strided_napi_binary( env, info, &obj );
return NULL;
}
// ...
The function accepts the following arguments:
- env:
[in] napi_env
environment under which the function is invoked. - info:
[in] napi_callback_info
callback data. - obj:
[in] struct StridedFunctionObject*
strided array function object.
void stdlib_strided_napi_binary( napi_env env, napi_callback_info info, const struct StridedFunctionObject *obj );
STDLIB_STRIDED_NAPI_MODULE_BINARY( obj )
Macro for registering a Node-API module exporting a strided array interface for applying a binary callback to input strided arrays.
#include "stdlib/strided/base/function_object.h"
// ...
// Create a strided function object:
static const struct StridedFunctionObject obj = {...};
// ...
// Register a Node-API module:
STDLIB_STRIDED_NAPI_MODULE_BINARY( obj );
The macro expects the following arguments:
- obj:
struct StridedFunctionObject
strided array function object.
When used, this macro should be used instead of NAPI_MODULE
. The macro includes NAPI_MODULE
, thus ensuring Node-API module registration.
Notes
The function expects that the callback
info
argument provides access to the following JavaScript arguments:- N: number of indexed elements.
- dtypeX:
X
data type (enumeration constant). - X: input typed array.
- strideX:
X
stride length. - dtypeY:
Y
data type (enumeration constant). - Y: input typed array.
- strideY:
Y
stride length. - dtypeZ:
Z
data type (enumeration constant). - Z: destination typed array.
- strideZ:
Z
stride length.
Notice
This package is part of 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, see the main project repository.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.