text: /**
  * @license Apache-2.0
  *
  * Copyright (c) 2018 The Stdlib Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  
  'use strict';
  
  // MODULES //
  
  var tape = require( 'tape' );
  var NINF = require( '@stdlib/constants/float64/ninf' );
  var PINF = require( '@stdlib/constants/float64/pinf' );
  var isnan = require( '@stdlib/math/base/assert/is-nan' );
  var isNegativeZero = require( '@stdlib/math/base/assert/is-negative-zero' );
  var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
  var pow = require( '@stdlib/math/base/special/pow' );
  var ceil10 = require( './../lib' );
  
  
  // TESTS //
  
  tape( 'main export is a function', function test( t ) {
  	t.ok( true, __filename );
  	t.strictEqual( typeof ceil10, 'function', 'main export is a function' );
  	t.end();
  });
  
  tape( 'the function returns `+0` if provided `+0`', function test( t ) {
  	var v;
  
  	v = ceil10( 0.0 );
  	t.strictEqual( isPositiveZero( v ), true, 'returns +0' );
  
  	v = ceil10( +0.0 );
  	t.strictEqual( isPositiveZero( v ), true, 'returns +0' );
  
  	t.end();
  });
  
  tape( 'the function returns `-0` if provided `-0`', function test( t ) {
  	var v = ceil10( -0.0 );
  	t.strictEqual( isNegativeZero( v ), true, 'returns -0' );
  	t.end();
  });
  
  tape( 'the function returns `NaN` if provided a `NaN`', function test( t ) {
  	var v = ceil10( NaN );
  	t.strictEqual( isnan( v ), true, 'returns NaN' );
  	t.end();
  });
  
  tape( 'the function returns `+infinity` if provided `+infinity`', function test( t ) {
  	var v = ceil10( PINF );
  	t.strictEqual( v, PINF, 'returns +infinity' );
  	t.end();
  });
  
  tape( 'the function returns `-infinity` if provided `-infinity`', function test( t ) {
  	var v = ceil10( NINF );
  	t.strictEqual( v, NINF, 'returns -infinity' );
  	t.end();
  });
  
  tape( 'the function overflows if provided a sufficiently large positive value', function test( t ) {
  	var x;
  	var v;
  
  	x = pow( 10.0, 308 );
  	v = ceil10( x + (x/2.0) );
  	t.strictEqual( v, PINF, 'returns +infinity' );
  
  	x = pow( 10.0, 308 );
  	v = ceil10( x + (x/3.0) );
  	t.strictEqual( v, PINF, 'returns +infinity' );
  
  	t.end();
  });
  
  tape( 'the function underflows if provided a sufficiently small negative value', function test( t ) {
  	var x;
  	var v;
  
  	x = -pow( 10.0, -323 );
  	v = ceil10( x - (x/2.0) );
  	t.strictEqual( isNegativeZero( v ), true, 'returns -0' );
  
  	x = -pow( 10.0, -323 );
  	v = ceil10( x - (x/3.0) );
  	t.strictEqual( isNegativeZero( v ), true, 'returns -0' );
  
  	t.end();
  });
  
  tape( 'the function may return incorrect results for small subnormals', function test( t ) {
  	var x;
  	var v;
  
  	x = -pow( 10.0, -323 );
  	v = ceil10( x );
  	t.notEqual( v, x, 'should return input value but does not due to loss in precision' );
  
  	t.end();
  });
  
  tape( 'the function supports rounding large values', function test( t ) {
  	var x;
  	var v;
  
  	x = -pow( 10.0, 323 );
  	v = ceil10( x + (x/2.0) );
  	t.strictEqual( v, x, 'returns expected value' );
  
  	x = -pow( 10.0, 323 );
  	v = ceil10( x + (x/3.0) );
  	t.strictEqual( v, x, 'returns expected value' );
  
  	t.end();
  });
  
  tape( 'the function supports rounding subnormal values', function test( t ) {
  	var expected;
  	var x;
  	var v;
  
  	expected = pow( 10.0, -318 );
  
  	x = pow( 10.0, -319 );
  	v = ceil10( x + (x/2.0) );
  	t.strictEqual( v, expected, 'returns expected value' );
  
  	x = pow( 10.0, -319 );
  	v = ceil10( x + (x/3.0) );
  	t.strictEqual( v, expected, 'returns expected value' );
  
  	expected = -pow( 10.0, -318 );
  
  	x = -pow( 10.0, -318 );
  	v = ceil10( x + (x/2.0) );
  	t.strictEqual( v, expected, 'returns expected value' );
  
  	x = -pow( 10.0, -318 );
  	v = ceil10( x + (x/3.0) );
  	t.strictEqual( v, expected, 'returns expected value' );
  
  	t.end();
  });
  
  tape( 'the function rounds a numeric value to the nearest power of 10 toward positive infinity', function test( t ) {
  	t.strictEqual( ceil10( -4.2 ), -1.0, 'returns expected value' );
  	t.strictEqual( ceil10( -4.5 ), -1.0, 'returns expected value' );
  	t.strictEqual( ceil10( -4.8 ), -1.0, 'returns expected value' );
  	t.strictEqual( ceil10( 4.2 ), 10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 9.99999 ), 10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 9.5 ), 10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 9.4 ), 10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 12.0 ), 100.0, 'returns expected value' );
  	t.strictEqual( ceil10( -12.0 ), -10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 13.0 ), 100.0, 'returns expected value' );
  	t.strictEqual( ceil10( -13.0 ), -10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 23.0 ), 100.0, 'returns expected value' );
  	t.strictEqual( ceil10( -23.0 ), -10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 0.0 ), 0.0, 'returns expected value' );
  	t.strictEqual( ceil10( 27.0 ), 100.0, 'returns expected value' );
  	t.strictEqual( ceil10( -27.0 ), -10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 48.1 ), 100.0, 'returns expected value' );
  	t.strictEqual( ceil10( -48.1 ), -10.0, 'returns expected value' );
  	t.strictEqual( ceil10( 0.3 ), 1.0, 'returns expected value' );
  	t.strictEqual( ceil10( -0.3 ), -0.1, 'returns expected value' );
  	t.strictEqual( ceil10( 0.45 ), 1.0, 'returns expected value' );
  	t.strictEqual( ceil10( -0.45 ), -0.1, 'returns expected value' );
  	t.end();
  });
  