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631 :: Equivalent of cin >> a >> b

• sanjay (orginal) [2014-11-17T06:29:28+01:00] view original

  Is there any equivalent of following c++ code in nimrod?

  cin >> a >> b;
  Run

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• Araq (orginal) [2014-11-17T17:38:28+01:00] view original

  No, you have to use stdin.readLine and parse it yourself:

  
  
  import strutils
  let args = stdin.readLine.split.map(parseInt)
  let a = args[0]
  let b = args[1]
  Run

  I'd like to see a macro that reinvents C's scanf in the stdlib (but type-safe of course!), but I don't think it exists yet.

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• sanjay (orginal) [2014-11-18T05:38:49+01:00] view original

  Thanks Araq, I wonder if the >> can be overloaded to implement the exact feature - that would be great.

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• Araq (orginal) [2014-11-18T10:51:21+01:00] view original

  Sure it can be done, but it's ugly and C++ only works that way because it didn't have variadic templates back then.

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• Demos (orginal) [2014-11-24T22:13:56+01:00] view original

  This would be a good thing for someone to blog about, as the way to emulate variadic templates in nim is currently shrouded in mystery

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