refactor: use base assertion utility

---
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---

Author: kgryte

lib/node_modules/@stdlib/lapack/base/slaswp/benchmark/benchmark.ndarray.js

@@ -23,6 +23,7 @@
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string' );
 var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var floor = require( '@stdlib/math/base/special/floor' );
@@ -55,7 +56,7 @@ function createBenchmark( order, N, nrows ) {
 	var sa2;
 	var A;
 
-	if ( order === 'column-major' ) {
+	if ( isColumnMajor( order ) ) {
 		sa1 = 1;
 		sa2 = N;
 	} else { // order === 'row-major'

lib/node_modules/@stdlib/lapack/base/slaswp/lib/slaswp.js

@@ -21,6 +21,8 @@
 // MODULES //
 
 var isLayout = require( '@stdlib/blas/base/assert/is-layout' );
+var isRowMajor = require( '@stdlib/ndarray/base/assert/is-row-major-string' );
+var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string' );
 var max = require( '@stdlib/math/base/special/max' );
 var format = require( '@stdlib/string/format' );
 var base = require( './base.js' );
@@ -62,7 +64,7 @@ function slaswp( order, N, A, LDA, k1, k2, IPIV, incx ) {
 	if ( !isLayout( order ) ) {
 		throw new TypeError( format( 'invalid argument. First argument must be a valid order. Value: `%s`.', order ) );
 	}
-	if ( order === 'row-major' && LDA < max( 1, N ) ) {
+	if ( isRowMajor( order ) && LDA < max( 1, N ) ) {
 		throw new RangeError( format( 'invalid argument. Fourth argument must be greater than or equal to max(1,%d). Value: `%d`.', N, LDA ) );
 	}
 	if ( incx > 0 ) {
@@ -77,7 +79,7 @@ function slaswp( order, N, A, LDA, k1, k2, IPIV, incx ) {
 	} else {
 		return A;
 	}
-	if ( order === 'column-major' ) {
+	if ( isColumnMajor( order ) ) {
 		sa1 = 1;
 		sa2 = LDA;
 	} else { // order === 'row-major'