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 isnan = require( './../../../../base/assert/is-nan' );
  var isInfinite = require( './../../../../base/assert/is-infinite' );
  var pow = require( './../../../../base/special/pow' );
  var ceil = require( './../../../../base/special/ceil' );
  var ceiln = require( './../../../../base/special/ceiln' );
  
  
  // MAIN //
  
  /**
  * Rounds a numeric value to the nearest multiple of \\(b^n\\) toward positive infinity.
  *
  * @param {number} x - input value
  * @param {integer} n - integer power
  * @param {PositiveInteger} b - base
  * @returns {number} rounded value
  *
  * @example
  * // Round a value to 4 decimal places:
  * var v = ceilb( 3.141592653589793, -4, 10 );
  * // returns 3.1416
  *
  * @example
  * // If n = 0 or b = 1, `ceilb` behaves like `ceil`:
  * var v = ceilb( 3.141592653589793, 0, 2 );
  * // returns 4.0
  *
  * @example
  * // Round a value to the nearest multiple of two toward positive infinity:
  * var v = ceilb( 5.0, 1, 2 );
  * // returns 6.0
  */
  function ceilb( x, n, b ) {
  	var y;
  	var s;
  	if (
  		isnan( x ) ||
  		isnan( n ) ||
  		isnan( b ) ||
  		b <= 0 ||
  		isInfinite( n ) ||
  		isInfinite( b )
  	) {
  		return NaN;
  	}
  	if ( isInfinite( x ) || x === 0.0 ) {
  		return x;
  	}
  	if ( b === 10 ) {
  		return ceiln( x, n );
  	}
  	if ( n === 0 || b === 1 ) {
  		return ceil( x );
  	}
  	s = pow( b, -n );
  
  	// Check for overflow:
  	if ( isInfinite( s ) ) {
  		return x;
  	}
  	y = ceil( x * s ) / s;
  
  	// Check for overflow:
  	if ( isInfinite( y ) ) {
  		return x;
  	}
  	return y;
  }
  
  
  // EXPORTS //
  
  module.exports = ceilb;
  