refactor: use BLAS assertion utilities

Author: kgryte

lib/node_modules/@stdlib/blas/base/ssymv/lib/is_order.js

@@ -24,8 +24,8 @@ var sfill = require( '@stdlib/blas/ext/base/sfill' );
 var sscal = require( '@stdlib/blas/base/sscal' );
 var max = require( '@stdlib/math/base/special/max' );
 var f32 = require( '@stdlib/number/float64/base/to-float32' );
-var isOrder = require( './is_order.js' );
-var isUPLO = require( './is_uplo.js' );
+var isLayout = require( '@stdlib/blas/base/assert/is-layout' );
+var isMatrixTriangle = require( '@stdlib/blas/base/assert/is-matrix-triangle' );
 
 
 // MAIN //
@@ -77,10 +77,10 @@ function ssymv( order, uplo, N, alpha, A, LDA, x, strideX, beta, y, strideY ) {
 	var j;
 	var k;
 
-	if ( !isOrder( order ) ) {
+	if ( !isLayout( order ) ) {
 		throw new TypeError( 'invalid argument. First argument must be a valid order. Value: `%s`.', order );
 	}
-	if ( !isUPLO( uplo ) ) {
+	if ( !isMatrixTriangle( uplo ) ) {
 		throw new TypeError( 'invalid argument. Second argument must specify whether to reference the lower or upper triangular matrix. Value: `%s`.', uplo );
 	}
 	if ( N < 0 ) {