fix: update C files with correct 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
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  - task: lint_javascript_examples
    status: na
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    status: na
  - task: lint_c_src
    status: missing_dependencies
  - task: lint_c_examples
    status: missing_dependencies
  - task: lint_c_benchmarks
    status: missing_dependencies
  - task: lint_c_tests_fixtures
    status: na
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    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: anandkaranubc

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/variance/benchmark/c/benchmark.c

@@ -17,9 +17,11 @@
 */
 
 #include "stdlib/stats/base/dists/hypergeometric/variance.h"
-#include <math.h>
-#include <stdio.h>
+#include "stdlib/math/base/special/ceil.h"
 #include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <math.h>
 #include <time.h>
 #include <sys/time.h>
 
@@ -75,14 +77,15 @@ static double tic( void ) {
 }
 
 /**
-* Generates a random integer on the interval [min,max].
+* Generates a random number on the interval [min,max).
 *
 * @param min    minimum value (inclusive)
-* @param max    maximum value (inclusive)
-* @return       random integer
+* @param max    maximum value (exclusive)
+* @return       random number
 */
-static int random_integer( const int min, const int max ) {
-	return min + rand() % ( max - min + 1 );
+static double random_uniform( const double min, const double max ) {
+	double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
+	return min + ( v*(max-min) );
 }
 
 /**
@@ -92,17 +95,17 @@ static int random_integer( const int min, const int max ) {
 */
 static double benchmark( void ) {
 	double elapsed;
-	double N[ 100 ];
-	double K[ 100 ];
-	double n[ 100 ];
+	int32_t N[ 100 ];
+	int32_t K[ 100 ];
+	int32_t n[ 100 ];
 	double v;
 	double t;
 	int i;
 
 	for ( i = 0; i < 100; i++ ) {
-		N[ i ] = (double)random_integer( 10, 100 );
-		K[ i ] = (double)random_integer( 1, (int)N[ i ] );
-		n[ i ] = (double)random_integer( 1, (int)N[ i ] );
+		N[ i ] = stdlib_base_ceil( random_uniform( 2.0, 100.0 ) );
+		K[ i ] = stdlib_base_ceil( random_uniform( 0.0, N[ i ] ) );
+		n[ i ] = stdlib_base_ceil( random_uniform( 0.0, N[ i ] ) );
 	}
 
 	t = tic();

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/variance/examples/c/example.c

@@ -16,28 +16,29 @@
 * limitations under the License.
 */
 
-#include "stdlib/math/base/special/round.h"
 #include "stdlib/stats/base/dists/hypergeometric/variance.h"
-#include <stdio.h>
+#include "stdlib/math/base/special/ceil.h"
 #include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
 
 static double random_uniform( const double min, const double max ) {
 	double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
 	return min + ( v * ( max - min ) );
 }
 
 int main( void ) {
-	double N;
-	double K;
-	double n;
+	int32_t N;
+	int32_t K;
+	int32_t n;
 	double v;
 	int i;
 
 	for ( i = 0; i < 10; i++ ) {
-		N = stdlib_base_round( random_uniform( 0.0, 20.0 ) );
-		K = stdlib_base_round( random_uniform( 0.0, N ) );
-		n = stdlib_base_round( random_uniform( 0.0, K ) );
+		N = stdlib_base_ceil( random_uniform( 2.0, 100.0 ) );
+		K = stdlib_base_ceil( random_uniform( 0.0, N ) );
+		n = stdlib_base_ceil( random_uniform( 0.0, N ) );
 		v = stdlib_base_dists_hypergeometric_variance( N, K, n );
-		printf( "N: %lf, K: %lf, n: %lf, Var(X;N,K,n): %lf\n", N, K, n, v );
+		printf( "N: %d, K: %d, n: %d, Var(X;N,K,n): %lf\n", N, K, n, v );
 	}
 }

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/variance/include/stdlib/stats/base/dists/hypergeometric/variance.h

@@ -19,6 +19,8 @@
 #ifndef STDLIB_STATS_BASE_DISTS_HYPERGEOMETRIC_VARIANCE_H
 #define STDLIB_STATS_BASE_DISTS_HYPERGEOMETRIC_VARIANCE_H
 
+#include <stdint.h>
+
 /*
 * If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
 */
@@ -27,14 +29,9 @@ extern "C" {
 #endif
 
 /**
-* Returns the variance of a hypergeometric distribution with population size `N`, subpopulation size `K`, and number of draws `n`.
-*
-* @param N    population size
-* @param K    subpopulation size
-* @param n    number of draws
-* @return     variance of the distribution
+* Returns the variance of a hypergeometric distribution.
 */
-double stdlib_base_dists_hypergeometric_variance( const double N, const double K, const double n );
+double stdlib_base_dists_hypergeometric_variance( const int32_t N, const int32_t K, const int32_t n );
 
 #ifdef __cplusplus
 }

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/variance/src/addon.c

@@ -16,8 +16,8 @@
 * limitations under the License.
 */
 
-#include "stdlib/math/base/napi/ternary.h"
 #include "stdlib/stats/base/dists/hypergeometric/variance.h"
+#include "stdlib/math/base/napi/ternary.h"
 
 // cppcheck-suppress shadowFunction
-STDLIB_MATH_BASE_NAPI_MODULE_DDD_D( stdlib_base_dists_hypergeometric_variance )
+STDLIB_MATH_BASE_NAPI_MODULE_III_D( stdlib_base_dists_hypergeometric_variance )

lib/node_modules/@stdlib/stats/base/dists/hypergeometric/variance/src/main.c

@@ -16,26 +16,27 @@
 * limitations under the License.
 */
 
-#include "stdlib/constants/float64/pinf.h"
-#include "stdlib/math/base/assert/is_nonnegative_integer.h"
 #include "stdlib/stats/base/dists/hypergeometric/variance.h"
+#include "stdlib/constants/float64/pinf.h"
+#include <stdint.h>
 
 /**
 * Returns the variance of a hypergeometric distribution.
 *
-* @param N    population size
-* @param K    subpopulation size
-* @param n    number of draws
-* @return     variance
+* @param N	population size
+* @param K	subpopulation size
+* @param n	number of draws
+* @return	variance
 *
 * @example
 * double v = stdlib_base_dists_hypergeometric_variance( 16, 11, 4 );
 * // returns ~0.688
 */
-double stdlib_base_dists_hypergeometric_variance( const double N, const double K, const double n ) {
-	if ( !stdlib_base_is_nonnegative_integer( N ) || !stdlib_base_is_nonnegative_integer( K ) || !stdlib_base_is_nonnegative_integer( n ) || N == STDLIB_CONSTANT_FLOAT64_PINF || K == STDLIB_CONSTANT_FLOAT64_PINF || K > N || n > N ) {
-		return NAN;
+double stdlib_base_dists_hypergeometric_variance( const int32_t N, const int32_t K, const int32_t n ) {
+	if ( N < 0 || K < 0 || n < 0 || N == STDLIB_CONSTANT_FLOAT64_PINF || K == STDLIB_CONSTANT_FLOAT64_PINF || K > N || n > N ) {
+		return 0.0/0.0; // NaN
 	}
-
-	return n * ( K / N ) * ( ( N - K ) / N ) * ( ( N - n ) / ( N - 1 ) );
+	double p = (double)K / (double)N;
+	double result = n * p * ( 1.0 - p ) * ( (double)(N-n) / (double)(N-1) );
+	return result;
 }