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while(!<>) verses until($_=<>)

(In "Gory Details")

Shouldn't these two whiles operate
identically?

  while(!<>) {
    print;        # echos ^Zs to the screen
  }

  until($_=<>) {
    print;        # echos only the newline
  }
0
hank1
Asked:
hank1
1 Solution
 
ozoCommented:
while( !($_=<>) ){
  print;
}
is like
 until($_=<>) {
    print;        # echos only the newline
 }
but not like
  while(!<>) {
    print;        # echos ^Zs to the screen
  }
which does not assign $_
0
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