Auto-generated commit

README.md

@@ -85,31 +85,26 @@ The `N` and `stride` parameters determine which elements in `x` are accessed at
 
 ```javascript
 var Float32Array = require( '@stdlib/array-float32' );
-var floor = require( '@stdlib/math-base-special-floor' );
 
 var x = new Float32Array( [ -2.0, 1.0, 3.0, -5.0, 4.0, 0.0, -1.0, -3.0 ] );
 
-var N = floor( x.length / 2 );
-
-sscal( N, 5.0, x, 2 );
+sscal( 4, 5.0, x, 2 );
 // x => <Float32Array>[ -10.0, 1.0, 15.0, -5.0, 20.0, 0.0, -5.0, -3.0 ]
 ```
 
 Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
 
 ```javascript
 var Float32Array = require( '@stdlib/array-float32' );
-var floor = require( '@stdlib/math-base-special-floor' );
 
-// Initial array...
+// Initial array:
 var x0 = new Float32Array( [ 1.0, -2.0, 3.0, -4.0, 5.0, -6.0 ] );
 
-// Create an offset view...
+// Create an offset view:
 var x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
-var N = 3;
 
-// Scale every other value...
-sscal( N, 5.0, x1, 2 );
+// Scale every other value:
+sscal( 3, 5.0, x1, 2 );
 // x0 => <Float32Array>[ 1.0, -10.0, 3.0, -20.0, 5.0, -30.0 ]
 ```
 
@@ -165,27 +160,13 @@ sscal.ndarray( 3, 5.0, x, 1, x.length-3 );
 <!-- eslint no-undef: "error" -->
 
 ```javascript
-var round = require( '@stdlib/math-base-special-round' );
-var randu = require( '@stdlib/random-base-randu' );
-var Float32Array = require( '@stdlib/array-float32' );
+var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
 var sscal = require( '@stdlib/blas-base-sscal' );
 
-var rand;
-var sign;
-var x;
-var i;
-
-x = new Float32Array( 10 );
-for ( i = 0; i < x.length; i++ ) {
-    rand = round( randu()*100.0 );
-    sign = randu();
-    if ( sign < 0.5 ) {
-        sign = -1.0;
-    } else {
-        sign = 1.0;
-    }
-    x[ i ] = sign * rand;
-}
+var opts = {
+    'dtype': 'float32'
+};
+var x = discreteUniform( 10, -100, 100, opts );
 console.log( x );
 
 sscal( x.length, 5.0, x, 1 );

benchmark/benchmark.js

@@ -21,14 +21,20 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random-base-randu' );
+var uniform = require( '@stdlib/random-array-uniform' );
 var isnan = require( '@stdlib/math-base-assert-is-nan' );
 var pow = require( '@stdlib/math-base-special-pow' );
-var Float32Array = require( '@stdlib/array-float32' );
 var pkg = require( './../package.json' ).name;
 var sscal = require( './../lib/sscal.js' );
 
 
+// VARIABLES //
+
+var options = {
+	'dtype': 'float32'
+};
+
+
 // FUNCTIONS //
 
 /**
@@ -39,13 +45,7 @@ var sscal = require( './../lib/sscal.js' );
 * @returns {Function} benchmark function
 */
 function createBenchmark( len ) {
-	var x;
-	var i;
-
-	x = new Float32Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = ( randu()*20.0 ) - 10.0;
-	}
+	var x = uniform( len, -100.0, 100.0, options );
 	return benchmark;
 
 	function benchmark( b ) {

benchmark/benchmark.native.js

@@ -22,10 +22,9 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random-base-randu' );
+var uniform = require( '@stdlib/random-array-uniform' );
 var isnan = require( '@stdlib/math-base-assert-is-nan' );
 var pow = require( '@stdlib/math-base-special-pow' );
-var Float32Array = require( '@stdlib/array-float32' );
 var tryRequire = require( '@stdlib/utils-try-require' );
 var pkg = require( './../package.json' ).name;
 
@@ -36,6 +35,9 @@ var sscal = tryRequire( resolve( __dirname, './../lib/sscal.native.js' ) );
 var opts = {
 	'skip': ( sscal instanceof Error )
 };
+var options = {
+	'dtype': 'float32'
+};
 
 
 // FUNCTIONS //
@@ -48,13 +50,7 @@ var opts = {
 * @returns {Function} benchmark function
 */
 function createBenchmark( len ) {
-	var x;
-	var i;
-
-	x = new Float32Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = ( randu()*10.0 ) - 20.0;
-	}
+	var x = uniform( len, -100.0, 100.0, options );
 	return benchmark;
 
 	function benchmark( b ) {

benchmark/benchmark.ndarray.js

@@ -21,14 +21,20 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random-base-randu' );
+var uniform = require( '@stdlib/random-array-uniform' );
 var isnan = require( '@stdlib/math-base-assert-is-nan' );
 var pow = require( '@stdlib/math-base-special-pow' );
-var Float32Array = require( '@stdlib/array-float32' );
 var pkg = require( './../package.json' ).name;
 var sscal = require( './../lib/ndarray.js' );
 
 
+// VARIABLES //
+
+var options = {
+	'dtype': 'float32'
+};
+
+
 // FUNCTIONS //
 
 /**
@@ -39,13 +45,7 @@ var sscal = require( './../lib/ndarray.js' );
 * @returns {Function} benchmark function
 */
 function createBenchmark( len ) {
-	var x;
-	var i;
-
-	x = new Float32Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = ( randu()*20.0 ) - 10.0;
-	}
+	var x = uniform( len, -100.0, 100.0, options );
 	return benchmark;
 
 	function benchmark( b ) {

benchmark/benchmark.ndarray.native.js

@@ -22,10 +22,9 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random-base-randu' );
+var uniform = require( '@stdlib/random-array-uniform' );
 var isnan = require( '@stdlib/math-base-assert-is-nan' );
 var pow = require( '@stdlib/math-base-special-pow' );
-var Float32Array = require( '@stdlib/array-float32' );
 var tryRequire = require( '@stdlib/utils-try-require' );
 var pkg = require( './../package.json' ).name;
 
@@ -36,6 +35,9 @@ var sscal = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
 var opts = {
 	'skip': ( sscal instanceof Error )
 };
+var options = {
+	'dtype': 'float32'
+};
 
 
 // FUNCTIONS //
@@ -48,13 +50,7 @@ var opts = {
 * @returns {Function} benchmark function
 */
 function createBenchmark( len ) {
-	var x;
-	var i;
-
-	x = new Float32Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = ( randu()*20.0 ) - 10.0;
-	}
+	var x = uniform( len, -100.0, 100.0, options );
 	return benchmark;
 
 	function benchmark( b ) {

docs/repl.txt

@@ -34,29 +34,23 @@
     --------
     // Standard Usage:
     > var x = new {{alias:@stdlib/array/float32}}( [ -2.0, 1.0, 3.0, -5.0, 4.0, -1.0, -3.0 ] );
-    > var alpha = 5.0;
-    > {{alias}}( x.length, alpha, x, 1 )
+    > {{alias}}( x.length, 5.0, x, 1 )
     <Float32Array>[ -10.0, 5.0, 15.0, -25.0, 20.0, -5.0, -15.0 ]
 
     // Using `N` and `stride` parameters:
     > x = new {{alias:@stdlib/array/float32}}( [ -2.0, 1.0, 3.0, -5.0, 4.0, -1.0, -3.0 ] );
-    > var N = {{alias:@stdlib/math/base/special/floor}}( x.length / 2 );
-    > alpha = 5.0;
-    > var stride = 2;
-    > {{alias}}( N, alpha, x, stride )
+    > {{alias}}( 3, 5.0, x, 2 )
     <Float32Array>[ -10.0, 1.0, 15.0, -5.0, 20.0, -1.0, -3.0 ]
 
     // Using view offsets:
     > var x0 = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 3.0, -4.0, 5.0, -6.0 ] );
     > var x1 = new {{alias:@stdlib/array/float32}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
-    > N = {{alias:@stdlib/math/base/special/floor}}( x0.length / 2 );
-    > alpha = 5.0;
-    > stride = 2;
-    > {{alias}}( N, alpha, x1, stride )
+    > {{alias}}( 3, 5.0, x1, 2 )
     <Float32Array>[ -10.0, 3.0, -20.0, 5.0, -30.0 ]
     > x0
     <Float32Array>[ 1.0, -10.0, 3.0, -20.0, 5.0, -30.0 ]
 
+
 {{alias}}.ndarray( N, alpha, x, stride, offset )
     Multiplies a single-precision floating-point vector `x` by a constant
     `alpha` using alternative indexing semantics.
@@ -91,16 +85,12 @@
     --------
     // Standard Usage:
     > var x = new {{alias:@stdlib/array/float32}}( [ -2.0, 1.0, 3.0, -5.0, 4.0, -1.0, -3.0 ] );
-    > var alpha = 5.0;
-    > {{alias}}.ndarray( x.length, alpha, x, 1, 0 )
+    > {{alias}}.ndarray( x.length, 5.0, x, 1, 0 )
     <Float32Array>[ -10.0, 5.0, 15.0, -25.0, 20.0, -5.0, -15.0 ]
 
     // Using an index offset:
     > x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 3.0, -4.0, 5.0, -6.0 ] );
-    > var N = {{alias:@stdlib/math/base/special/floor}}( x.length / 2 );
-    > alpha = 5.0;
-    > var stride = 2;
-    > {{alias}}.ndarray( N, alpha, x, stride, 1 )
+    > {{alias}}.ndarray( 3, 5.0, x, 2, 1 )
     <Float32Array>[ 1.0, -10.0, 3.0, -20.0, 5.0, -30.0 ]
 
     See Also

docs/types/index.d.ts

@@ -29,7 +29,7 @@ interface Routine {
 	* @param alpha - constant
 	* @param x - input array
 	* @param stride - stride length
-	* @returns `y`
+	* @returns input array
 	*
 	* @example
 	* var Float32Array = require( `@stdlib/array/float32` );
@@ -49,7 +49,7 @@ interface Routine {
 	* @param x - input array
 	* @param stride - stride length
 	* @param offset - starting index
-	* @returns `x`
+	* @returns input array
 	*
 	* @example
 	* var Float32Array = require( `@stdlib/array/float32` );
@@ -69,7 +69,7 @@ interface Routine {
 * @param alpha - constant
 * @param x - input array
 * @param stride - stride length
-* @returns `x`
+* @returns input array
 *
 * @example
 * var Float32Array = require( `@stdlib/array/float32` );

examples/c/example.c

@@ -21,13 +21,13 @@
 
 int main( void ) {
 	// Create a strided array:
-	float x[] = { 1.0, -2.0, 3.0, -4.0, 5.0, -6.0, 7.0, -8.0 };
+	float x[] = { 1.0f, -2.0f, 3.0f, -4.0f, 5.0f, -6.0f, 7.0f, -8.0f };
 
 	// Specify the number of elements:
-	int N = 8;
+	const int N = 8;
 
 	// Specify a stride:
-	int strideX = 1;
+	const int strideX = 1;
 
 	// Scale the vector:
 	c_sscal( N, 5.0f, x, strideX );

examples/index.js

@@ -18,27 +18,13 @@
 
 'use strict';
 
-var round = require( '@stdlib/math-base-special-round' );
-var randu = require( '@stdlib/random-base-randu' );
-var Float32Array = require( '@stdlib/array-float32' );
+var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
 var sscal = require( './../lib' );
 
-var rand;
-var sign;
-var x;
-var i;
-
-x = new Float32Array( 10 );
-for ( i = 0; i < x.length; i++ ) {
-	rand = round( randu()*100.0 );
-	sign = randu();
-	if ( sign < 0.5 ) {
-		sign = -1.0;
-	} else {
-		sign = 1.0;
-	}
-	x[ i ] = sign * rand;
-}
+var opts = {
+	'dtype': 'float32'
+};
+var x = discreteUniform( 10, -100, 100, opts );
 console.log( x );
 
 sscal( x.length, 5.0, x, 1 );

include.gypi

@@ -52,7 +52,7 @@
 
     # Source files:
     'src_files': [
-      '<(src_dir)/addon.cpp',
+      '<(src_dir)/addon.c',
       '<!@(node -e "var arr = require(\'@stdlib/utils-library-manifest\')(\'./manifest.json\',{\'os\':\'<(OS)\',\'blas\':\'<(blas)\'},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).src; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
     ],
 

lib/ndarray.native.js

@@ -20,7 +20,8 @@
 
 // MODULES //
 
-var Float32Array = require( '@stdlib/array-float32' );
+var minViewBufferIndex = require( '@stdlib/strided-base-min-view-buffer-index' );
+var offsetView = require( '@stdlib/strided-base-offset-view' );
 var addon = require( './sscal.native.js' );
 
 
@@ -47,11 +48,11 @@ var addon = require( './sscal.native.js' );
 */
 function sscal( N, alpha, x, stride, offset ) {
 	var view;
+	offset = minViewBufferIndex( N, stride, offset );
 	if ( stride < 0 ) {
 		stride *= -1;
-		offset -= (N-1) * stride;
 	}
-	view = new Float32Array( x.buffer, x.byteOffset+(x.BYTES_PER_ELEMENT*offset), x.length-offset ); // eslint-disable-line max-len
+	view = offsetView( x, offset );
 	addon( N, alpha, view, stride );
 	return x;
 }