refactor: C implementation

Author: Neerajpathak07

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

@@ -38,7 +38,8 @@
       "dependencies": [
         "@stdlib/math/base/napi/unary",
         "@stdlib/constants/float32/max-safe-nth-tribonacci",
-        "@stdlib/math/base/assert/is-nanf"
+        "@stdlib/math/base/assert/is-nanf",
+        "@stdlib/math/base/assert/is-integerf"
       ]
     },
     {
@@ -53,7 +54,8 @@
       "libpath": [],
       "dependencies": [
         "@stdlib/constants/float32/max-safe-nth-tribonacci",
-        "@stdlib/math/base/assert/is-nanf"
+        "@stdlib/math/base/assert/is-nanf",
+        "@stdlib/math/base/assert/is-integerf"
       ]
     },
     {
@@ -68,7 +70,8 @@
       "libpath": [],
       "dependencies": [
         "@stdlib/constants/float32/max-safe-nth-tribonacci",
-        "@stdlib/math/base/assert/is-nanf"
+        "@stdlib/math/base/assert/is-nanf",
+        "@stdlib/math/base/assert/is-integerf"
       ]
     }
   ]

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

@@ -19,6 +19,7 @@
 #include "stdlib/math/base/special/tribonaccif.h"
 #include "stdlib/constants/float32/max_safe_nth_tribonacci.h"
 #include "stdlib/math/base/assert/is_nanf.h"
+#include "stdlib/math/base/assert/is_integerf.h"
 
 static const int32_t tribonaccif_value[ 31 ] = {
 	0,
@@ -65,10 +66,12 @@ static const int32_t tribonaccif_value[ 31 ] = {
 * // returns 0
 */
 float stdlib_base_tribonaccif( const int32_t n ) {
-	if ( n < 0 || n > STDLIB_CONSTANT_FLOAT32_MAX_SAFE_NTH_TRIBONACCI || n == 3.14 ) { // eslint-disable-line max-len
-		return 0.0 / 0.0; // NaN
-	}
-	if ( stdlib_base_is_nanf( n ) ){
+	if (
+		stdlib_base_is_nanf( n ) ||
+		stdlib_base_is_integerf( n ) == false ||
+		n < 0 ||
+		n > STDLIB_CONSTANT_FLOAT32_MAX_SAFE_NTH_TRIBONACCI
+	) {
 		return 0.0 / 0.0; // NaN
 	}
 	return tribonaccif_value[ n ];