text: /********************************************************************
   *                                                                  *
   * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
   * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
   * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
   * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
   *                                                                  *
   * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007             *
   * by the Xiph.Org Foundation http://www.xiph.org/                  *
   *                                                                  *
   ********************************************************************
  
   function: utility functions for vorbis codec test suite.
   last mod: $Id: util.h 19015 2013-11-12 04:13:28Z giles $
  
   ********************************************************************/
  
  #define ARRAY_LEN(x)   (sizeof(x)/sizeof(x[0]))
  
  /* Create simple test data consisting of a windowed sine wave. */
  void gen_windowed_sine (float *data, int len, float maximum) ;
  
  /* Set len values of data array to given value. */
  void set_data_in (float * data, unsigned len, float value) ;
  