refactor: update blas/ext/base/dsorthp to follow current project co…

…nventions

PR-URL: #2051 
Closes: #1498 
Ref: #1152

---------

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>

lib/node_modules/@stdlib/blas/ext/base/dsorthp/README.md

@@ -54,30 +54,26 @@ The `N` and `stride` parameters determine which elements in `x` are accessed at
 
 ```javascript
 var Float64Array = require( '@stdlib/array/float64' );
-var floor = require( '@stdlib/math/base/special/floor' );
 
 var x = new Float64Array( [ 1.0, -2.0, 3.0, -4.0 ] );
-var N = floor( x.length / 2 );
 
-dsorthp( N, -1.0, x, 2 );
+dsorthp( 2, -1.0, x, 2 );
 // x => <Float64Array>[ 3.0, -2.0, 1.0, -4.0 ]
 ```
 
 Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
 
 ```javascript
 var Float64Array = require( '@stdlib/array/float64' );
-var floor = require( '@stdlib/math/base/special/floor' );
 
 // Initial array...
 var x0 = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
 
 // Create an offset view...
 var x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
-var N = floor( x0.length/2 );
 
 // Sort every other element...
-dsorthp( N, -1.0, x1, 2 );
+dsorthp( 2, -1.0, x1, 2 );
 // x0 => <Float64Array>[ 1.0, 4.0, 3.0, 2.0 ]
 ```
 

lib/node_modules/@stdlib/blas/ext/base/dsorthp/include.gypi

@@ -36,7 +36,7 @@
 
     # Source files:
     'src_files': [
-      '<(src_dir)/addon.cpp',
+      '<(src_dir)/addon.c',
       '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).src; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
     ],
 

lib/node_modules/@stdlib/blas/ext/base/dsorthp/lib/ndarray.native.js

@@ -20,7 +20,8 @@
 
 // MODULES //
 
-var Float64Array = require( '@stdlib/array/float64' );
+var minViewBufferIndex = require( '@stdlib/strided/base/min-view-buffer-index' );
+var offsetView = require( '@stdlib/strided/base/offset-view' );
 var addon = require( './dsorthp.native.js' );
 
 
@@ -45,12 +46,13 @@ var addon = require( './dsorthp.native.js' );
 */
 function dsorthp( N, order, x, stride, offset ) {
 	var view;
+	offset = minViewBufferIndex( N, stride, offset );
 	if ( stride < 0 ) {
 		order *= -1.0;
 		stride *= -1;
-		offset -= (N-1) * stride;
 	}
-	view = new Float64Array( x.buffer, x.byteOffset+(x.BYTES_PER_ELEMENT*offset), x.length-offset ); // eslint-disable-line max-len
+	view = offsetView( x, offset );
+
 	addon( N, order, view, stride );
 	return x;
 }

lib/node_modules/@stdlib/blas/ext/base/dsorthp/manifest.json

@@ -1,43 +1,51 @@
 {
-	"options": {},
-	"fields": [
-		{
-			"field": "src",
-			"resolve": true,
-			"relative": true
-		},
-		{
-			"field": "include",
-			"resolve": true,
-			"relative": true
-		},
-		{
-			"field": "libraries",
-			"resolve": false,
-			"relative": false
-		},
-		{
-			"field": "libpath",
-			"resolve": true,
-			"relative": false
-		}
-	],
-	"confs": [
-		{
-			"src": [
-				"./src/dsorthp.c"
-			],
-			"include": [
-				"./include"
-			],
-			"libraries": [
-				"-lm"
-			],
-			"libpath": [],
-			"dependencies": [
-				"@stdlib/math/base/assert/is-nan",
-				"@stdlib/math/base/assert/is-positive-zero"
-			]
-		}
-	]
+  "options": {
+    "task": "build"
+  },
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "task": "build",
+      "src": [
+        "./src/dsorthp.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [
+        "-lm"
+      ],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/assert/is-nan",
+        "@stdlib/math/base/assert/is-positive-zero",
+        "@stdlib/napi/export",
+        "@stdlib/napi/argv",
+        "@stdlib/napi/argv-double",
+        "@stdlib/napi/argv-int64",
+        "@stdlib/napi/argv-strided-float64array"
+      ]
+    }
+  ]
 }

lib/node_modules/@stdlib/blas/ext/base/dsorthp/src/addon.c

@@ -0,0 +1,45 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2020 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/dsorthp.h"
+#include "stdlib/napi/export.h"
+#include "stdlib/napi/argv.h"
+#include "stdlib/napi/argv_double.h"
+#include "stdlib/napi/argv_int64.h"
+#include "stdlib/napi/argv_strided_float64array.h"
+#include <node_api.h>
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @private
+* @param env    environment under which the function is invoked
+* @param info   callback data
+* @return       Node-API value
+*/
+static napi_value addon( napi_env env, napi_callback_info info ) {
+	STDLIB_NAPI_ARGV( env, info, argv, argc, 4 );
+	STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+	STDLIB_NAPI_ARGV_DOUBLE( env, order, argv, 1 );
+	STDLIB_NAPI_ARGV_INT64( env, stride, argv, 3 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT64ARRAY( env, X, N, stride, argv, 2 );
+	c_dsorthp( N, order, X, stride );
+	return NULL;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN( addon )