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/ The C Users' Group Library 1994 August / wc-cdrom-cusersgrouplibrary-1994-08.iso / vol_300 / 310_01 / boolean.st < prev    next >
Text File  |  1990-04-20  |  317b  |  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.