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8670 :: Read next string from stdin

• nick14 (orginal) [2021-12-01T19:45:11+01:00] view original

  Hello, I am new to Nim and I am trying to read a string similar to C++

  string s;
  cin >> s;
  Run

  So far, I have tried the following which is not correct:

  proc scanf(frmt: cstring) {.varargs, importc, header: "<stdio.h>".}
  
  var s: cstring # Not sure how to allocate it properly so that it is garbage collected
  scanf("%s", s);
  Run

  Do you have any suggestions how to make this work or is there a better way to accomplish something like that? Thank you very much!

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• Yardanico (orginal) [2021-12-01T19:46:42+01:00] view original

  You don't have to resort to C interop for this, Nim has basic IO functionality by default ;)

  let line = readLine()
  Run

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• nick14 (orginal) [2021-12-01T19:57:26+01:00] view original

  Thank you for your reply! The stdin.readLine() is way better than what I was trying to do. Just out of curiosity, is it possible to not read the whole line, but read up to the next whitespace?

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