Re: [Boost-Users] Re: Error in testing tuple

From: Jon Agiato (JonAgiato_at_[hidden])
Date: 2003-01-01 13:27:22

----- Original Message ----- 
  From: David Abrahams 
  To: boost-users_at_[hidden] 
  Sent: Wednesday, January 01, 2003 10:33 AM
  Subject: [Boost-Users] Re: Error in testing tuple

  "agiatojon <JonAgiato_at_[hidden]>" <JonAgiato_at_[hidden]> writes:

  > Happy Holidays to everyone! I am getting aquainted with the tuple 
  > class but am encountering the following error:
  >
  > c:\BGL\boost_1_29_0\boost\tuple\tuple_comparison.hpp(119): error 
  > C2027: use of undefined type 'boost::STATIC_ASSERTION_FAILURE<x>'
  > with
  > [
  > x=false
  > ]
  >
  > with the following program:
  <snip>

  > tuple<A, B, C> testTuple;
  > cout << testTuple << '\n';
  >
  > tuple<B, A> test2Tuple;
  > if(testTuple == test2Tuple)

  http://www.boost.org/libs/tuple/doc/tuple_users_guide.html#relational_operators
  says:

      "Note that an attempt to compare two tuples of different lengths
       results in a compile time error."

  P.S. When posting code, turn tabs into spaces if you want indentation
  to be preserved.

  -- 
                         David Abrahams
     dave_at_[hidden] * http://www.boost-consulting.com
  Boost support, enhancements, training, and commercial distribution

  Thanks David,
  I guess I didn't see that as I was testing the use of tuple_comparison and thought that was a natural first test.  Have a good one.

  Jon Agiato
  JonAgiato_at_[hidden]

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