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feat: add tests and update docs for normalize index mode support
1 parent a7d2960 commit 5c9d067

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+3532
-9
lines changed

‎lib/node_modules/@stdlib/ndarray/ctor/README.md

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@@ -79,6 +79,7 @@ The constructor accepts the following `options`:
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The constructor supports the following `modes`:
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- **throw**: specifies that an `ndarray` instance should throw an error when an index exceeds array dimensions.
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- **normalize**: specifies that an `ndarray` instance should normalize negative indices and throw an error when an index exceeds array dimensions.
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- **wrap**: specifies that an `ndarray` instance should wrap around an index exceeding array dimensions using modulo arithmetic.
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- **clamp**: specifies that an `ndarray` instance should set an index exceeding array dimensions to either `0` (minimum index) or the maximum index.
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‎lib/node_modules/@stdlib/ndarray/ctor/benchmark/benchmark.get.js

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@@ -139,6 +139,45 @@ bench( pkg+'::1d:get:mode=clamp', function benchmark( b ) {
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b.end();
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});
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bench( pkg+'::1d:get:mode=normalize', function benchmark( b ) {
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var strides;
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var buffer;
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var offset;
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var shape;
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var order;
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var opts;
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var out;
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var v;
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var i;
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opts = {
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'mode': 'normalize'
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};
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buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
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shape = [ 6 ];
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strides = [ 1 ];
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offset = 0;
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order = 'row-major';
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out = ndarray( 'generic', buffer, shape, strides, offset, order, opts );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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buffer[ 1 ] = i;
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v = out.get( (i%12)-6 );
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::2d:get', function benchmark( b ) {
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var strides;
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var buffer;
@@ -251,6 +290,45 @@ bench( pkg+'::2d:get:mode=clamp', function benchmark( b ) {
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b.end();
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});
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bench( pkg+'::2d:get:mode=normalize', function benchmark( b ) {
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var strides;
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var buffer;
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var offset;
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var shape;
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var order;
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var opts;
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var out;
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var v;
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var i;
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opts = {
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'mode': 'normalize'
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};
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buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
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shape = [ 3, 2 ];
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strides = [ 2, 1 ];
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offset = 0;
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order = 'row-major';
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out = ndarray( 'generic', buffer, shape, strides, offset, order, opts );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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buffer[ 1 ] = i;
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v = out.get( (i%6)-3, 1 );
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::3d:get', function benchmark( b ) {
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var strides;
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var buffer;
@@ -363,6 +441,45 @@ bench( pkg+'::3d:get:mode=clamp', function benchmark( b ) {
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b.end();
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});
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bench( pkg+'::3d:get:mode=normalize', function benchmark( b ) {
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var strides;
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var buffer;
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var offset;
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var shape;
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var order;
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var opts;
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var out;
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var v;
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var i;
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opts = {
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'mode': 'normalize'
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};
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buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
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shape = [ 1, 3, 2 ];
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strides = [ 6, 2, 1 ];
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offset = 0;
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order = 'row-major';
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out = ndarray( 'generic', buffer, shape, strides, offset, order, opts );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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buffer[ 1 ] = i;
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v = out.get( 0, (i%6)-3, 1 );
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::4d:get', function benchmark( b ) {
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var strides;
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var buffer;
@@ -475,6 +592,45 @@ bench( pkg+'::4d:get:mode=clamp', function benchmark( b ) {
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b.end();
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});
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bench( pkg+'::4d:get:mode=normalize', function benchmark( b ) {
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var strides;
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var buffer;
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var offset;
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var shape;
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var order;
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var opts;
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var out;
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var v;
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var i;
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opts = {
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'mode': 'normalize'
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};
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buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
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shape = [ 1, 1, 3, 2 ];
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strides = [ 6, 6, 2, 1 ];
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offset = 0;
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order = 'row-major';
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out = ndarray( 'generic', buffer, shape, strides, offset, order, opts );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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buffer[ 1 ] = i;
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v = out.get( 0, 0, (i%6)-3, 1 );
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::5d:get', function benchmark( b ) {
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var strides;
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var buffer;
@@ -586,3 +742,42 @@ bench( pkg+'::5d:get:mode=clamp', function benchmark( b ) {
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::5d:get:mode=normalize', function benchmark( b ) {
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var strides;
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var buffer;
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var offset;
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var shape;
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var order;
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var opts;
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var out;
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var v;
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var i;
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opts = {
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'mode': 'normalize'
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};
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buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
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shape = [ 1, 1, 1, 3, 2 ];
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strides = [ 6, 6, 6, 2, 1 ];
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offset = 0;
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order = 'row-major';
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out = ndarray( 'generic', buffer, shape, strides, offset, order, opts );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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buffer[ 1 ] = i;
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v = out.get( 0, 0, 0, (i%6)-3, 1 );
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});

‎lib/node_modules/@stdlib/ndarray/ctor/benchmark/benchmark.iget.js

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@@ -139,6 +139,45 @@ bench( pkg+'::1d:iget:mode=clamp', function benchmark( b ) {
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b.end();
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});
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bench( pkg+'::1d:iget:mode=normalize', function benchmark( b ) {
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var strides;
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var buffer;
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var offset;
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var shape;
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var order;
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var opts;
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var out;
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var v;
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var i;
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opts = {
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'mode': 'normalize'
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};
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buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
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shape = [ 6 ];
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strides = [ 1 ];
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offset = 0;
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order = 'row-major';
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out = ndarray( 'generic', buffer, shape, strides, offset, order, opts );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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buffer[ 1 ] = i;
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v = out.iget( (i%12)-6 );
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( v !== v ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::2d,all_positive_strides:iget:order=row-major', function benchmark( b ) {
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var strides;
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var buffer;

‎lib/node_modules/@stdlib/ndarray/ctor/benchmark/benchmark.iset.js

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@@ -147,6 +147,48 @@ bench( pkg+'::1d:iset:mode=clamp', function benchmark( b ) {
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b.end();
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});
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bench( pkg+'::1d:iset:mode=normalize', function benchmark( b ) {
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var strides;
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var buffer;
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var offset;
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var shape;
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var order;
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var opts;
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var out;
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var tmp;
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var v;
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var i;
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var j;
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opts = {
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'mode': 'normalize'
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};
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buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
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shape = [ 6 ];
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strides = [ 1 ];
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offset = 0;
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order = 'row-major';
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out = ndarray( 'generic', buffer, shape, strides, offset, order, opts );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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v = i;
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j = (i%12) - 6;
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tmp = out.iset( j, v );
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if ( typeof tmp !== 'object' ) {
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b.fail( 'should return an object' );
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}
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}
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b.toc();
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if ( out.iget( j ) !== v ) {
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b.fail( 'should set value' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::2d,all_positive_strides:iset:order=row-major', function benchmark( b ) {
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var strides;
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var buffer;

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