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 SMALLEST_SUBNORMAL = require( '@stdlib/constants/float64/smallest-subnormal' );
  var isnan = require( './../../../../base/assert/is-nan' );
  var isNegativeZero = require( './../../../../base/assert/is-negative-zero' );
  var isPositiveZero = require( './../../../../base/assert/is-positive-zero' );
  var exp2 = require( './../../../../base/special/exp2' );
  var pow = require( './../../../../base/special/pow' );
  var ceil2 = require( './../lib' );
  
  
  // TESTS //
  
  tape( 'main export is a function', function test( t ) {
  	t.ok( true, __filename );
  	t.strictEqual( typeof ceil2, 'function', 'main export is a function' );
  	t.end();
  });
  
  tape( 'the function returns `+0` if provided `+0`', function test( t ) {
  	var v;
  
  	v = ceil2( 0.0 );
  	t.strictEqual( isPositiveZero( v ), true, 'returns +0' );
  
  	v = ceil2( +0.0 );
  	t.strictEqual( isPositiveZero( v ), true, 'returns +0' );
  
  	t.end();
  });
  
  tape( 'the function returns `-0` if provided `-0`', function test( t ) {
  	var v = ceil2( -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 = ceil2( NaN );
  	t.strictEqual( isnan( v ), true, 'returns NaN' );
  	t.end();
  });
  
  tape( 'the function returns `+infinity` if provided `+infinity`', function test( t ) {
  	var v = ceil2( PINF );
  	t.strictEqual( v, PINF, 'returns +infinity' );
  	t.end();
  });
  
  tape( 'the function returns `-infinity` if provided `-infinity`', function test( t ) {
  	var v = ceil2( NINF );
  	t.strictEqual( v, NINF, 'returns -infinity' );
  	t.end();
  });
  
  tape( 'the function returns the minimum double-precision floating-point value if provided the minimum double-precision floating-point value', function test( t ) {
  	var v = ceil2( SMALLEST_SUBNORMAL );
  	t.strictEqual( v, SMALLEST_SUBNORMAL, 'returns smallest subnormal' );
  	t.end();
  });
  
  tape( 'the function overflows if provided a sufficiently large positive value', function test( t ) {
  	var x;
  	var v;
  
  	x = exp2( 1023 );
  	v = ceil2( x + (x/2.0) );
  	t.strictEqual( v, PINF, 'returns +infinity' );
  
  	x = exp2( 1023 );
  	v = ceil2( x + (x/3.0) );
  	t.strictEqual( v, PINF, 'returns +infinity' );
  
  	t.end();
  });
  
  tape( 'the function supports rounding large values', function test( t ) {
  	var x;
  	var v;
  
  	x = -exp2( 1023 );
  	v = ceil2( x + (x/2.0) );
  	t.strictEqual( v, x, 'returns expected value' );
  
  	x = -exp2( 1023 );
  	v = ceil2( 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( 2.0, -1044 );
  
  	x = pow( 2.0, -1045 );
  	v = ceil2( x + (x/2.0) );
  	t.strictEqual( v, expected, 'returns expected value' );
  
  	x = pow( 2.0, -1045 );
  	v = ceil2( x + (x/3.0) );
  	t.strictEqual( v, expected, 'returns expected value' );
  
  	expected = -pow( 2.0, -1045 );
  
  	x = -pow( 2.0, -1045 );
  	v = ceil2( x + (x/2.0) );
  	t.strictEqual( v, expected, 'returns expected value' );
  
  	x = -pow( 2.0, -1045 );
  	v = ceil2( 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 two toward positive infinity', function test( t ) {
  	t.strictEqual( ceil2( -4.2 ), -4.0, 'returns expected value' );
  	t.strictEqual( ceil2( -4.5 ), -4.0, 'returns expected value' );
  	t.strictEqual( ceil2( -4.8 ), -4.0, 'returns expected value' );
  	t.strictEqual( ceil2( 4.2 ), 8.0, 'returns expected value' );
  	t.strictEqual( ceil2( 9.99999 ), 16.0, 'returns expected value' );
  	t.strictEqual( ceil2( 9.5 ), 16.0, 'returns expected value' );
  	t.strictEqual( ceil2( 9.4 ), 16.0, 'returns expected value' );
  	t.strictEqual( ceil2( 12.0 ), 16.0, 'returns expected value' );
  	t.strictEqual( ceil2( -12.0 ), -8.0, 'returns expected value' );
  	t.strictEqual( ceil2( 13.0 ), 16.0, 'returns expected value' );
  	t.strictEqual( ceil2( -13.0 ), -8.0, 'returns expected value' );
  	t.strictEqual( ceil2( 23.0 ), 32.0, 'returns expected value' );
  	t.strictEqual( ceil2( -23.0 ), -16.0, 'returns expected value' );
  	t.strictEqual( ceil2( 0.0 ), 0.0, 'returns expected value' );
  	t.strictEqual( ceil2( 27.0 ), 32.0, 'returns expected value' );
  	t.strictEqual( ceil2( -27.0 ), -16.0, 'returns expected value' );
  	t.strictEqual( ceil2( 48.1 ), 64.0, 'returns expected value' );
  	t.strictEqual( ceil2( -48.1 ), -32.0, 'returns expected value' );
  	t.strictEqual( ceil2( 0.3 ), 0.5, 'returns expected value' );
  	t.strictEqual( ceil2( -0.3 ), -0.25, 'returns expected value' );
  	t.strictEqual( ceil2( 0.45 ), 0.5, 'returns expected value' );
  	t.strictEqual( ceil2( -0.45 ), -0.25, 'returns expected value' );
  	t.end();
  });
  