Why no conversion from weak_ptr<T> to bool? - Boost - lists.preview.boost.org

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Why no conversion from weak_ptr<T> to bool?

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Re: Boost Digest, Vol 894, Issue 1

Jonathan Biggar

28 Oct 2004 28 Oct '04

3:54 a.m.

It seems straighforward, it would just return !expired(). Any reason why not? -- Jonathan Biggar jon@levanta.com

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Peter Dimov

28 Oct 28 Oct

11:57 a.m.

Jonathan Biggar wrote:

It seems straighforward, it would just return !expired().

Any reason why not?

Because code that tests expired() is often wrong. It's better to not encourage people to use it.

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Jonathan Biggar
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