fix: apply code review suggestion

Author: headlessNode

lib/node_modules/@stdlib/blas/ext/base/dnansumkbn2/lib/ndarray.js

@@ -63,8 +63,6 @@ function dnansumkbn2( N, x, strideX, offsetX ) {
 	var i;
 
 	sum = 0.0;
-	ccs = 0.0; // second order correction term for lost low order bits
-	cs = 0.0; // first order correction term for lost low order bits
 	if ( N <= 0 ) {
 		return 0.0;
 	}
@@ -76,6 +74,8 @@ function dnansumkbn2( N, x, strideX, offsetX ) {
 		sum = x[ ix ] * N;
 		return sum;
 	}
+	ccs = 0.0; // second order correction term for lost low order bits
+	cs = 0.0; // first order correction term for lost low order bits
 	for ( i = 0; i < N; i++ ) {
 		v = x[ ix ];
 		if ( isnan( v ) === false ) {

lib/node_modules/@stdlib/blas/ext/base/dnansumkbn2/src/main.c

@@ -72,8 +72,6 @@ double API_SUFFIX(stdlib_strided_dnansumkbn2_ndarray)( const CBLAS_INT N, const
 	double c;
 
 	sum = 0.0;
-	ccs = 0.0; // second order correction term for lost lower order bits
-	cs = 0.0; // first order correction term for lost low order bits
 	if ( N <= 0 ) {
 		return sum;
 	}
@@ -85,6 +83,8 @@ double API_SUFFIX(stdlib_strided_dnansumkbn2_ndarray)( const CBLAS_INT N, const
 		sum = X[ ix ] * N;
 		return sum;
 	}
+	ccs = 0.0; // second order correction term for lost lower order bits
+	cs = 0.0; // first order correction term for lost low order bits
 	for ( i = 0; i < N; i++ ) {
 		v = X[ ix ];
 		if ( !stdlib_base_is_nan( v ) ) {