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Subject: Re: [boost] [review][constrained_value] Review of ConstrainedValueLibrary begins today
From: Gordon Woodhull (gordon_at_[hidden])
Date: 2008-12-07 16:42:31

> a passing test guarantees the
> invariant (but a failing test need not imply that the invariant is not
> satisfied). The test is what is implemented (just like the current
> constraint), but the invariant is only documented/guaranteed.

Hear, hear!

In this case, the invariant is what you see in the code
but it gets coarsened by the test to account for error.

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