refactor: modify C implementation to accept double value

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Author: gunjjoshi

lib/node_modules/@stdlib/math/base/special/negalucas/README.md

@@ -191,19 +191,19 @@ for ( i = 0; i > -77; i-- ) {
 Computes the nth [negaLucas number][lucas-number].
 
 ```c
-double out = stdlib_base_negalucas( 0 );
-// returns 0
+double out = stdlib_base_negalucas( 0.0 );
+// returns 0.0
 
-out = stdlib_base_negalucas( -1 );
-// returns -1
+out = stdlib_base_negalucas( -1.0 );
+// returns -1.0
 ```
 
 The function accepts the following arguments:
 
--   **n**: `[in] int32_t` input value.
+-   **n**: `[in] double` input value.
 
 ```c
-double stdlib_base_negalucas( const int32_t n );
+double stdlib_base_negalucas( const double n );
 ```
 
 </section>
@@ -227,15 +227,14 @@ double stdlib_base_negalucas( const int32_t n );
 ```c
 #include "stdlib/math/base/special/negalucas.h"
 #include <stdio.h>
-#include <stdint.h>
 
 int main( void ) {
-    int32_t i;
+    double i;
     double v;
 
-    for ( i = 0; i > -77; i-- ) {
+    for ( i = 0.0; i > -77.0; i-- ) {
         v = stdlib_base_negalucas( i );
-        printf( "negalucas(%d) = %lf\n", i, v );
+        printf( "negalucas(%lf) = %lf\n", i, v );
     }
 }
 ```

lib/node_modules/@stdlib/math/base/special/negalucas/benchmark/c/native/benchmark.c

@@ -91,13 +91,13 @@ static double rand_double( void ) {
 */
 static double benchmark( void ) {
 	double elapsed;
-	int32_t x[ 100 ];
+	double x[ 100 ];
 	double t;
 	double y;
 	int i;
 
 	for ( i = 0; i < 100; i++ ) {
-		x[ i ] = (int32_t)( 77.0*rand_double() );
+		x[ i ] = ( 77.0*rand_double() );
 	}
 
 	t = tic();

lib/node_modules/@stdlib/math/base/special/negalucas/examples/c/example.c

@@ -18,14 +18,13 @@
 
 #include "stdlib/math/base/special/negalucas.h"
 #include <stdio.h>
-#include <stdint.h>
 
 int main( void ) {
-	int32_t i;
+	double i;
 	double v;
 
-	for ( i = 0; i > -77; i-- ) {
+	for ( i = 0.0; i > -77.0; i-- ) {
 		v = stdlib_base_negalucas( i );
-		printf( "negalucas(%d) = %lf\n", i, v );
+		printf( "negalucas(%lf) = %lf\n", i, v );
 	}
 }

lib/node_modules/@stdlib/math/base/special/negalucas/include/stdlib/math/base/special/negalucas.h

@@ -19,8 +19,6 @@
 #ifndef STDLIB_MATH_BASE_SPECIAL_NEGALUCAS_H
 #define STDLIB_MATH_BASE_SPECIAL_NEGALUCAS_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.
 */
@@ -31,7 +29,7 @@ extern "C" {
 /**
 * Computes the nth negaLucas number.
 */
-double stdlib_base_negalucas( const int32_t n );
+double stdlib_base_negalucas( const double n );
 
 #ifdef __cplusplus
 }

lib/node_modules/@stdlib/math/base/special/negalucas/manifest.json

@@ -38,7 +38,8 @@
       "dependencies": [
         "@stdlib/math/base/napi/unary",
         "@stdlib/math/base/special/labs",
-        "@stdlib/constants/float64/max-safe-nth-lucas"
+        "@stdlib/constants/float64/max-safe-nth-lucas",
+        "@stdlib/math/base/assert/is-integer"
       ]
     },
     {
@@ -53,7 +54,8 @@
       "libpath": [],
       "dependencies": [
         "@stdlib/math/base/special/labs",
-        "@stdlib/constants/float64/max-safe-nth-lucas"
+        "@stdlib/constants/float64/max-safe-nth-lucas",
+        "@stdlib/math/base/assert/is-integer"
       ]
     },
     {
@@ -68,7 +70,8 @@
       "libpath": [],
       "dependencies": [
         "@stdlib/math/base/special/labs",
-        "@stdlib/constants/float64/max-safe-nth-lucas"
+        "@stdlib/constants/float64/max-safe-nth-lucas",
+        "@stdlib/math/base/assert/is-integer"
       ]
     }
   ]

lib/node_modules/@stdlib/math/base/special/negalucas/src/addon.c

@@ -19,4 +19,4 @@
 #include "stdlib/math/base/special/negalucas.h"
 #include "stdlib/math/base/napi/unary.h"
 
-STDLIB_MATH_BASE_NAPI_MODULE_I_D( stdlib_base_negalucas )
+STDLIB_MATH_BASE_NAPI_MODULE_D_D( stdlib_base_negalucas )

lib/node_modules/@stdlib/math/base/special/negalucas/src/main.c

@@ -17,8 +17,11 @@
 */
 
 #include "stdlib/math/base/special/negalucas.h"
+#include "stdlib/math/base/assert/is_integer.h"
 #include "stdlib/math/base/special/labs.h"
 #include "stdlib/constants/float64/max_safe_nth_lucas.h"
+#include <stdint.h>
+#include <stdlib.h>
 
 static const int64_t negalucas_value[ 77 ] = {
 	2,
@@ -107,17 +110,17 @@ static const int64_t negalucas_value[ 77 ] = {
 * @return      output value
 *
 * @example
-* double out = stdlib_base_negalucas( -1 );
-* // returns -1
+* double out = stdlib_base_negalucas( -1.0 );
+* // returns -1.0
 *
 * @example
-* double out = stdlib_base_negalucas( 1 );
+* double out = stdlib_base_negalucas( 1.0 );
 * // returns NaN
 */
-double stdlib_base_negalucas( const int32_t n ) {
-	int32_t an = stdlib_base_labs( n );
-	if ( n > 0 || an > STDLIB_CONSTANT_FLOAT64_MAX_SAFE_NTH_LUCAS ) {
+double stdlib_base_negalucas( const double n ) {
+	double an = stdlib_base_labs( n );
+	if ( !stdlib_base_is_integer( n ) || n > 0 || an > STDLIB_CONSTANT_FLOAT64_MAX_SAFE_NTH_LUCAS ) {
 		return 0.0 / 0.0; // NaN
 	}
-	return negalucas_value[ an ];
+	return negalucas_value[ (size_t)an ];
 }