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Section: 28.5.8.1 [rand.util.seedseq] Status: CD1 Submitter: Charles Karney Opened: 2006-10-26 Last modified: 2016-01-28
Priority: Not Prioritized
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Discussion:
Short seed vectors of 32-bit quantities all result in different states. However this is not true of seed vectors of 16-bit (or smaller) quantities. For example these two seeds
unsigned short seed = {1, 2, 3};
unsigned short seed = {1, 2, 3, 0};
both pack to
unsigned seed = {0x20001, 0x3};
yielding the same state.
See N2391 and N2423 for some further discussion.
Proposed resolution:
Adopt the proposed resolution in N2423.
[ Kona (2007): The LWG adopted the proposed resolution of N2423 for this issue. The LWG voted to accelerate this issue to Ready status to be voted into the WP at Kona. ]