fix: handle zero-dimensional ndarrays

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/assign/lib/main.js

@@ -166,16 +166,23 @@ function boolean2uint8( x ) {
 * @returns {Object} output ndarray object
 */
 function complex2real( x ) {
+	var ndims = x.shape.length;
+
 	x.data = reinterpretComplex( x.data, 0 );
 	x.accessorProtocol = false;
 	x.dtype = COMPLEX_TO_REAL[ x.dtype ];
-	x.strides = gscal( x.shape.length, 2, x.strides, 1 );
+	x.strides = gscal( ndims, 2, x.strides, 1 );
 	x.offset *= 2;
 
 	// Append a trailing dimension where each element is the real and imaginary component for a corresponding element in the original input ndarray (note: this means that a two-dimensional complex-valued ndarray becomes a three-dimensional real-valued ndarray; while this does entail additional loop overhead, it is still significantly faster than sending complex-valued ndarrays down the accessor path):
 	x.shape.push( 2 ); // real and imaginary components
-	x.strides.push( 1 ); // real and imaginary components are assumed to be adjacent in memory
 
+	// Augment the strides, where we assume that real and imaginary components are adjacent in memory...
+	if ( ndims === 0 ) {
+		x.strides[ 0 ] = 1;
+	} else {
+		x.strides.push( 1 );
+	}
 	return x;
 }