chore: update implementation

---
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: na
  - 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: missing_dependencies
  - 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: ShabiShett07

lib/node_modules/@stdlib/blas/base/dgemv/benchmark/c/benchmark.length.c

@@ -104,7 +104,7 @@ static double benchmark1( int iterations, int len ) {
 	double t;
 	int i;
 
-	for ( i = 0, j = 0; i < N; i++, j += 2 ) {
+	for ( i = 0, j = 0; i < len; i++, j += 2 ) {
 		x[ i ] = ( rand_double()*20.0 ) - 10.0;
 		y[ i ] = ( rand_double()*20.0 ) - 10.0;
 		A[ j ] = ( rand_double()*20.0 ) - 10.0;
@@ -139,8 +139,9 @@ static double benchmark2( int iterations, int len ) {
 	double y[ len ];
 	double t;
 	int i;
+	int j;
 
-	for ( i = 0, j = 0; i < N; i++, j += 2 ) {
+	for ( i = 0, j = 0; i < len; i++, j += 2 ) {
 		x[ i ] = ( rand_double()*20.0 ) - 10.0;
 		y[ i ] = ( rand_double()*20.0 ) - 10.0;
 		A[ j ] = ( rand_double()*20.0 ) - 10.0;