Re: how to read/write object from/to binary file?

[c0ntribut0r]

Have a look at this:
    
    
    import streams
    type
      MyType* = object
        somefield*: array[10, int16]
    var t1, t2: MyType
    t1.somefield[0] = 1
    t2.somefield[0] = 2
    
    
    var f = newFileStream("/tmp/tmp.mytype", fmWrite)
    if not f.isNil:
      f.write t1
      f.write t2
    f.flush
    
    var r1, r2: MyType
    var f2 = newFileStream("/tmp/tmp.mytype", fmRead)
    discard f2.readData(r1.addr, r1.sizeof)
    discard f2.readData(r2.addr, r2.sizeof)
    echo r1.somefield
    echo r2.somefield