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Topic: Ruby Query:

Phanto
Member
Member # 5897

posted

I've been working on a nifty program that figures out what number you're thinking of by binary division. (Is it 500? Is it 750? Is it 625?..., until it gets it.)

Then I realized a problem:

quote:

lowerbound = guessNumber.dup

This method is a string method. I could convert guessNumber back to a string, dup it, then convert back. But there has to be a better way. What's the method I need?

Thanks ^_^.

[ June 15, 2007, 02:47 PM: Message edited by: Phanto ]

Posts: 3060 | Registered: Nov 2003 | IP: Logged |

fugu13
Member
Member # 2859

posted

dup is not a string method:

http://www.rubycentral.com/book/ref_c_object.html#Object.dup

But more importantly, why are you trying to duplicate a number?

Posts: 15770 | Registered: Dec 2001 | IP: Logged |

Phanto
Member
Member # 5897

posted

Because I want lowerbound to take the value of guessNumber and then I want to change guessNumber's value without changing that of lowerbound.

Posts: 3060 | Registered: Nov 2003 | IP: Logged |

fugu13
Member
Member # 2859

posted

Try running the following ruby script:

code:

a = 1
b = a

a = 2

puts a
puts b

Posts: 15770 | Registered: Dec 2001 | IP: Logged |

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