strange bug

[Christian Bauer]

Hi!

On Sat, Jul 10, 2004 at 11:50:39AM +0200, Ralf Stephan wrote:
>   e = e[0];

It's better to use op() here because ex::operator[] on a non-const object
calls let_op() which is a more expensive operation.

Anyway, it shouldn't crash (and it doesn't do that here, even with efence).
A gdb backtrace would be nice.

Bye,
Christian

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