forked from boostorg/utility
lazy eval docs
[SVN r1877]
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@@ -334,7 +334,8 @@ Lazy Evaluation of Defaults
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===========================
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Sometimes computation of the default value can be expensive, and
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best avoided if the user does supply the argument.
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best avoided if the user does supply the argument. For this the
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default value can be lazily evaluated:
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.. parsed-literal::
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