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5320 :: c-like read\write data structure in Nim?

• xupypr (orginal) [2019-10-10T09:16:41+02:00] view original

  struct blabla {
    int a;
    char b;
  }
  
  ....
  struct blabla blablavar;
  
  blablavar.a = 1;
  blablavar.b = 'a';
  
  fopen...
  fwrite(fd,&blablavar,sizeof(blablavar));
  Run

  ........... like this?

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• Stefan_Salewski (orginal) [2019-10-10T10:19:57+02:00] view original

  For binary data using streams similar like

  https://stackoverflow.com/questions/33107332/writing-reading-binary-file-in-nim

  But there is also json and

  https://nim-lang.org/docs/marshal.html

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• leorize (orginal) [2019-10-11T05:50:15+02:00] view original

  There's also NESM, which provides easy to use DSLs for serializing and deserializing objects in binary form.

  https://gitlab.com/xomachine/NESM

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• JPLRouge (orginal) [2019-10-13T18:59:38+02:00] view original

  thank you fort reponse

  my solution simple

  type Person = object

  nom: string prenom: string age: int

  var personList = newSeqPerson

  personList.add(Person(nom: "Koch", prenom:"karl", age: 23)) personList.add(Person(nom: "Pan", prenom:"Peter", age: 12))

  echo personList[1].nom

  personList.add(Person(nom: "Moranne", prenom:"Bob", age: 30))

  echo personList[2]

  for i, value in personList:

  echo "index: ", $i, ", value:", $value

  etc... thank you

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