This page is a snapshot from the LWG issues list, see the Library Active Issues List for more information and the meaning of NAD status.
739. Defect in [rand.util.canonical]/3Section: 29.5.8.2 [rand.util.canonical] Status: NAD Submitter: Stephan Tolksdorf Opened: 2007-09-21 Last modified: 2016-01-28
Priority: Not Prioritized
View all other issues in [rand.util.canonical].
View all issues with NAD status.
Discussion:
The complexity of generate_canonical is specified to be "exactly k=max(1, ceil(b/log2 R)) invocations of g". This terms involves a logarithm that is not rounded and hence can not (in general) be computed at compile time. As this function template is performance critical, I propose to replace ceil(b/log2 R) with ceil(b/floor(log2 R)).
See N2424 for further discussion.
[ Bellevue: ]
In N2424. Close NAD as described there.
Proposed resolution:
See N2424 for the proposed resolution.
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