diff --git a/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/README.md b/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/README.md
index 0ede563e583..5562823bcf7 100644
--- a/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/README.md
+++ b/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/README.md
@@ -112,6 +112,8 @@ bool = isNegativeFinite( NaN );
 Tests if a double-precision floating-point numeric value is a negative finite number.
 
 ```c
+#include <stdbool.h>
+
 bool out = stdlib_base_is_negative_finite( 1.0 );
 // returns false
 
@@ -147,18 +149,17 @@ bool stdlib_base_is_negative_finite( const double x );
 
 ```c
 #include "stdlib/math/base/assert/is_negative_finite.h"
+#include "stdlib/constants/float64/ninf.h"
 #include <stdio.h>
-#include <stdlib.h>
 #include <stdbool.h>
 
 int main( void ) {
-    double x;
-    bool v;
+    const double x[] = { 5.0, -5.0, 3.14, -3.14, 0.0/0.0, STDLIB_CONSTANT_FLOAT64_NINF };
+
+    bool b;
     int i;
-    
-    for ( i = 0; i < 100; i++ ) {
-        x = ( ( (double)rand() / (double)RAND_MAX ) * 100.0 );
-        v = stdlib_base_is_negative_finite( x );
+    for ( i = 0; i < 6; i++ ) {
+        b = stdlib_base_is_negative_finite( x[ i ] );
         printf( "x = %lf, is_negative_finite(x) = %s\n", x, ( v ) ? "True" : "False" );
     }
 }
diff --git a/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/benchmark/benchmark.native.js
index 9e98eb4cb43..d53110d8939 100644
--- a/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/benchmark/benchmark.native.js
+++ b/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/benchmark/benchmark.native.js
@@ -45,7 +45,7 @@ bench( pkg, opts, function benchmark( b ) {
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = (randu()*200.0) - 100.0;
+		x = ( randu()*200.0 ) - 100.0;
 		y = isNegativeFinite( x );
 		if ( typeof y !== 'boolean' ) {
 			b.fail( 'should return a boolean' );
diff --git a/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/examples/c/example.c b/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/examples/c/example.c
index 985637c1fab..1eabc9da626 100644
--- a/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/examples/c/example.c
+++ b/lib/node_modules/@stdlib/math/base/assert/is-negative-finite/examples/c/example.c
@@ -17,18 +17,16 @@
 */
 
 #include "stdlib/math/base/assert/is_negative_finite.h"
+#include "stdlib/constants/float64/ninf.h"
 #include <stdio.h>
-#include <stdlib.h>
 #include <stdbool.h>
 
 int main( void ) {
-	double x;
-	bool v;
+	const double x[] = { 5.0, -5.0, 3.14, -3.14, 0.0/0.0, STDLIB_CONSTANT_FLOAT64_NINF };
+	bool b;
 	int i;
-
-	for ( i = 0; i < 100; i++ ) {
-		x = ( ( (double)rand() / (double)RAND_MAX ) * 100.0 );
-		v = stdlib_base_is_negative_finite( x );
+	for ( i = 0; i < 6; i++ ) {
+		b = stdlib_base_is_negative_finite( x[ i ] );
 		printf( "x = %lf, is_negative_finite(x) = %s\n", x, ( v ) ? "True" : "False" );
 	}
 }