refactor: add int32_t logic around k parameter

Author: Neerajpathak07

lib/node_modules/@stdlib/stats/base/dists/erlang/kurtosis/README.md

@@ -178,11 +178,11 @@ double y = stdlib_base_dists_erlang_kurtosis( 1.0, 1.0 );
 
 The function accepts the following arguments:
 
--   **k**: `[in] double` shape parameter.
+-   **k**: `[in] int32_t` shape parameter.
 -   **lambda**: `[in] double` rate parameter.
 
 ```c
-double stdlib_base_dists_erlang_kurtosis( const double k, const double lambda );
+double stdlib_base_dists_erlang_kurtosis( const isnt32_t k, const double lambda );
 ```
 
 </section>
@@ -208,6 +208,7 @@ element and another before the `/section` close. -->
 #include "stdlib/stats/base/dists/erlang/kurtosis.h"
 #include "stdlib/math/base/special/round.h"
 #include "stdlib/constants/float64/eps.h"
+#include <stdint.h>
 #include <stdlib.h>
 #include <stdio.h>
 

lib/node_modules/@stdlib/stats/base/dists/erlang/kurtosis/benchmark/c/benchmark.c

@@ -19,6 +19,7 @@
 #include "stdlib/stats/base/dists/erlang/kurtosis.h"
 #include "stdlib/math/base/special/ceil.h"
 #include "stdlib/constants/float64/eps.h"
+#include <stdint.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <math.h>
@@ -95,7 +96,7 @@ static double random_uniform( const double min, const double max ) {
 */
 static double benchmark( void ) {
 	double elapsed;
-	double k[ 100 ];
+	int32_t k[ 100 ];
 	double lambda[ 100 ];
 	double y;
 	double t;

lib/node_modules/@stdlib/stats/base/dists/erlang/kurtosis/examples/c/example.c

@@ -19,6 +19,7 @@
 #include "stdlib/stats/base/dists/erlang/kurtosis.h"
 #include "stdlib/math/base/special/round.h"
 #include "stdlib/constants/float64/eps.h"
+#include <stdint.h>
 #include <stdlib.h>
 #include <stdio.h>
 
@@ -28,7 +29,7 @@ static double random_uniform( const double min, const double max ) {
 }
 
 int main( void ) {
-	double k;
+	int32_t k;
 	double lambda;
 	double y;
 	int i;

lib/node_modules/@stdlib/stats/base/dists/erlang/kurtosis/include/stdlib/stats/base/dists/erlang/kurtosis.h

@@ -19,6 +19,8 @@
 #ifndef STDLIB_STATS_BASE_DISTS_ERLANG_KURTOSIS_H
 #define STDLIB_STATS_BASE_DISTS_ERLANG_KURTOSIS_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.
 */
@@ -29,7 +31,7 @@ extern "C" {
 /**
 * Returns the excess kurtosis for a erlang distribution with shape parameter `k` and rate parameter `lambda`.
 */
-double stdlib_base_dists_erlang_kurtosis( const double k, const double lambda );
+double stdlib_base_dists_erlang_kurtosis( const int32_t k, const double lambda );
 
 #ifdef __cplusplus
 }

lib/node_modules/@stdlib/stats/base/dists/erlang/kurtosis/src/addon.c

@@ -20,4 +20,4 @@
 #include "stdlib/math/base/napi/binary.h"
 
 // cppcheck-suppress shadowFunction
-STDLIB_MATH_BASE_NAPI_MODULE_DD_D( stdlib_base_dists_erlang_kurtosis )
+STDLIB_MATH_BASE_NAPI_MODULE_ID_D( stdlib_base_dists_erlang_kurtosis )

lib/node_modules/@stdlib/stats/base/dists/erlang/kurtosis/src/main.c

@@ -19,7 +19,7 @@
 #include "stdlib/stats/base/dists/erlang/kurtosis.h"
 #include "stdlib/math/base/assert/is_positive_integer.h"
 #include "stdlib/math/base/assert/is_nan.h"
-
+#include <stdint.h>
 /**
 * Returns the excess kurtosis for a erlang distribution with shape parameter `k` and rate parameter `lambda`.
 *
@@ -31,7 +31,7 @@
 * double y = stdlib_base_dists_beta_kurtosis( 1.0, 1.0 );
 * // returns 6.0
 */
-double stdlib_base_dists_erlang_kurtosis( const double k, const double lambda ) {
+double stdlib_base_dists_erlang_kurtosis( const int32_t k, const double lambda ) {
 	if (
 		!stdlib_base_is_positive_integer( k ) ||
 		stdlib_base_is_nan( lambda ) ||