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   1  <?php
   2  /**
   3   *    @package JAMA
   4   *
   5   *    Error handling
   6   *    @author Michael Bommarito
   7   *    @version 01292005
   8   */
   9  
  10  //Language constant
  11  define('JAMALANG', 'EN');
  12  
  13  
  14  //All errors may be defined by the following format:
  15  //define('ExceptionName', N);
  16  //$error['lang'][ExceptionName] = 'Error message';
  17  $error = array();
  18  
  19  /*
  20  I've used Babelfish and a little poor knowledge of Romance/Germanic languages for the translations here.
  21  Feel free to correct anything that looks amiss to you.
  22  */
  23  
  24  define('POLYMORPHIC_ARGUMENT_EXCEPTION', -1);
  25  $error['EN'][POLYMORPHIC_ARGUMENT_EXCEPTION] = "Invalid argument pattern for polymorphic function.";
  26  $error['FR'][POLYMORPHIC_ARGUMENT_EXCEPTION] = "Modèle inadmissible d'argument pour la fonction polymorphe.".
  27  $error['DE'][POLYMORPHIC_ARGUMENT_EXCEPTION] = "Unzulässiges Argumentmuster für polymorphe Funktion.";
  28  
  29  define('ARGUMENT_TYPE_EXCEPTION', -2);
  30  $error['EN'][ARGUMENT_TYPE_EXCEPTION] = "Invalid argument type.";
  31  $error['FR'][ARGUMENT_TYPE_EXCEPTION] = "Type inadmissible d'argument.";
  32  $error['DE'][ARGUMENT_TYPE_EXCEPTION] = "Unzulässige Argumentart.";
  33  
  34  define('ARGUMENT_BOUNDS_EXCEPTION', -3);
  35  $error['EN'][ARGUMENT_BOUNDS_EXCEPTION] = "Invalid argument range.";
  36  $error['FR'][ARGUMENT_BOUNDS_EXCEPTION] = "Gamme inadmissible d'argument.";
  37  $error['DE'][ARGUMENT_BOUNDS_EXCEPTION] = "Unzulässige Argumentstrecke.";
  38  
  39  define('MATRIX_DIMENSION_EXCEPTION', -4);
  40  $error['EN'][MATRIX_DIMENSION_EXCEPTION] = "Matrix dimensions are not equal.";
  41  $error['FR'][MATRIX_DIMENSION_EXCEPTION] = "Les dimensions de Matrix ne sont pas égales.";
  42  $error['DE'][MATRIX_DIMENSION_EXCEPTION] = "Matrixmaße sind nicht gleich.";
  43  
  44  define('PRECISION_LOSS_EXCEPTION', -5);
  45  $error['EN'][PRECISION_LOSS_EXCEPTION] = "Significant precision loss detected.";
  46  $error['FR'][PRECISION_LOSS_EXCEPTION] = "Perte significative de précision détectée.";
  47  $error['DE'][PRECISION_LOSS_EXCEPTION] = "Bedeutender Präzision Verlust ermittelte.";
  48  
  49  define('MATRIX_SPD_EXCEPTION', -6);
  50  $error['EN'][MATRIX_SPD_EXCEPTION] = "Can only perform operation on symmetric positive definite matrix.";
  51  $error['FR'][MATRIX_SPD_EXCEPTION] = "Perte significative de précision détectée.";
  52  $error['DE'][MATRIX_SPD_EXCEPTION] = "Bedeutender Präzision Verlust ermittelte.";
  53  
  54  define('MATRIX_SINGULAR_EXCEPTION', -7);
  55  $error['EN'][MATRIX_SINGULAR_EXCEPTION] = "Can only perform operation on singular matrix.";
  56  
  57  define('MATRIX_RANK_EXCEPTION', -8);
  58  $error['EN'][MATRIX_RANK_EXCEPTION] = "Can only perform operation on full-rank matrix.";
  59  
  60  define('ARRAY_LENGTH_EXCEPTION', -9);
  61  $error['EN'][ARRAY_LENGTH_EXCEPTION] = "Array length must be a multiple of m.";
  62  
  63  define('ROW_LENGTH_EXCEPTION', -10);
  64  $error['EN'][ROW_LENGTH_EXCEPTION] = "All rows must have the same length.";
  65  
  66  /**
  67   *    Custom error handler
  68   *    @param int $num Error number
  69   */
  70  function JAMAError($errorNumber = null)
  71  {
  72      global $error;
  73  
  74      if (isset($errorNumber)) {
  75          if (isset($error[JAMALANG][$errorNumber])) {
  76              return $error[JAMALANG][$errorNumber];
  77          } else {
  78              return $error['EN'][$errorNumber];
  79          }
  80      } else {
  81          return ("Invalid argument to JAMAError()");
  82      }
  83  }