home *** CD-ROM | disk | FTP | other *** search
/ Really Useful CD 1 / ReallyUsefulCD1.iso / extras / languages / smalltalk / _smalltalk / prelude / boolean < prev    next >
Encoding:
Text File  |  1987-12-30  |  351 b   |  21 lines
  1. Class Boolean
  2. [
  3.         &    aBoolean   
  4.           ^ self and: [aBoolean]
  5.  
  6. |       |    aBoolean  
  7.           ^ self or: [aBoolean]
  8.  
  9. |       and: aBlock   
  10.           ^ self and: [aBlock value]
  11.  
  12. |       or:  aBlock  
  13.           ^ self or: [aBlock value]
  14.  
  15. |    eqv: aBoolean
  16.           ^ self == aBoolean
  17.  
  18. |    xor: aBoolean
  19.           ^ self ~~ aBoolean
  20. ]
  21.