Guard against intermediate x*x overflow in Student's t pdf/cdf#1402

Merged

jzmaddock merged 7 commits into

boostorg:developfrom

a-leontyev:fix/students-t-overflow

Jun 9, 2026

Commits on Jun 4, 2026

Drop errno==0 assertions on success paths (UBSan report printing clobbers errno)
a-leontyev
committed
Return exact tail values instead of raising overflow_error (review feedback)
a-leontyev
committed