bwBASIC/NBS2/P030.run

PROGRAM FILE 30: EXCEPTION - OVERFLOW OF NUMERIC CONSTANTS.                     
    ANSI STANDARD 5.4, 5.5                                                      
                                                                                
THIS PROGRAM TESTS VARIOUS CASES OF CONSTANT OVERFLOW.                          
                                                                                
SECTION 30.1: POSITIVE CONSTANT OVERFLOW                                        
                                                                                
THIS SECTION TESTS THE RESULT OF CONSTANT EVALUATION                            
EXCEEDING POSITIVE MACHINE INFINITY.                                            
                                                                                
TO PASS THIS TEST:                                                              
                                                                                
    1) A MESSAGE IDENTIFYING THE EXCEPTION MUST BE                              
       DISPLAYED, AND                                                           
                                                                                
    2) POSITIVE INFINITY MUST BE SUPPLIED AS THE VALUE                          
       OF THE CONSTANT AND EXECUTION CONTINUES.                                 
                                                                                
               BEGIN TEST                                                       
                                                                                
*** Arithmetic Overflow ***                                                     
RESULT OF ASSIGNING E399999 =  1.79769E+308                                     
IF (RESULT = 3E99999) OR                                                        
   (RESULT = POSITIVE INFINITY AND EXCEPTION REPORTED)                          
*** TEST PASSED *** OTHERWISE *** TEST FAILED ***                               
                                                                                
                END TEST                                                        
                                                                                
SECTION 30.2: NEGATIVE CONSTANT OVERFLOW                                        
                                                                                
THIS SECTION TESTS THE RESULT OF CONSTANT EVALUATION                            
EXCEEDING NEGATIVE MACHINE INFINITY.                                            
                                                                                
TO PASS THIS TEST:                                                              
                                                                                
    1) A MESSAGE IDENTIFYING THE EXCEPTION MUST BE                              
       DISPLAYED, AND                                                           
                                                                                
    2) NEGATIVE INFINITY MUST BE SUPPLIED AS THE VALUE                          
       OF THE CONSTANT AND EXECUTION CONTINUES.                                 
                                                                                
               BEGIN TEST                                                       
                                                                                
*** Arithmetic Overflow ***                                                     
RESULT OF ASSIGNING -3E99999 = -1.79769E+308                                    
IF (RESULT = -3E99999) OR                                                       
   (RESULT = NEGATIVE INFINITY AND EXCEPTION REPORTED)                          
*** TEST PASSES *** OTHERWISE *** TEST FAILS ***                                
                                                                                
                END TEST                                                        
                                                                                
END PROGRAM 30