decompressBound tests and fix #3373
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fixed an overflow in an intermediate result on 32-bit platform. Checked that the new test catch this bug in 32-bit mode.
terrelln
approved these changes
Dec 16, 2022
for environments with stringent compilation warnings.
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This is a complement to #3362 , and finalize fixes for #3323 .
There are additional unit tests to ensure behavior of
ZSTD_decompressBound(),including a new "overflow" test which attempts to overflow intermediate results on 32-bit systems
(
ZSTD_decompressBound()return type isunsigned long longwhich is >= 64-bit , therefore only intermediate calculation results feature overflow risks).Fixed the detected overflow.