@stdlib/ndarray-base-napi-typedarray-type-to-dtype

Node-API ndarray dtype

C API for returning the ndarray data type corresponding to a Node-API typed array type.

Installation

npm install @stdlib/ndarray-base-napi-typedarray-type-to-dtype

Usage

#include "stdlib/ndarray/base/napi/typedarray_type_to_dtype.h"

stdlib_ndarray_napi_typedarray_type_to_dtype( napi_typedarray_type vtype )

Returns the ndarray data type corresponding to a Node-API typed array type.

#include "stdlib/ndarray/base/napi/typedarray_type_to_dtype.h"
#include "stdlib/ndarray/dtypes.h"
#include <node_api.h>
#include <assert.h>

// Add-on function export...
napi_value addon( napi_env env, napi_callback_info info ) {

    // ...

    // Get function arguments...
    size_t argc = 1;
    napi_value argv[ 1 ];
    napi_status status = napi_get_cb_info( env, info, &argc, argv, NULL, NULL );
    assert( status == napi_ok );

    // ...

    // Get a typed array argument...
    napi_typedarray_type vtype;
    size_t xlen;
    void *X;
    status = napi_get_typedarray_info( env, argv[ 0 ], &vtype, &xlen, &X, NULL, NULL );
    assert( status == napi_ok );

    // ...

    // Return the corresponding ndarray data type for the input typed array:
    enum STDLIB_NDARRAY_DTYPE dtype = stdlib_ndarray_napi_typedarray_type_to_dtype( vtype );

    // ...
}

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.