Fix WAL log preallocation: 10 ^ 9 (XOR=3) -> 1000000000#116
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`ftruncate(10 ^ 9)` is a bitwise XOR yielding 3 bytes, not the intended 1e9 (1 GB) log preallocation. It also fails gcc-13 -Werror=xor-used-as-pow. Affects silo (ycsb/sbomb/tpcc/bomb) and ss2pl (bomb) under `#if WAL`. Found via Izanagi parameter-space full enumeration: the WAL code path is not compiled in default WAL=0 builds, so this stayed latent until WAL=1 was exercised across the optimization-flag hypercube. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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ftruncate(10 ^ 9)is a bitwise XOR yielding 3 bytes, not the intended 1e9 (1 GB) log preallocation. It also fails gcc-13 -Werror=xor-used-as-pow. Affects silo (ycsb/sbomb/tpcc/bomb) and ss2pl (bomb) under#if WAL.Found via Izanagi parameter-space full enumeration: the WAL code path is not compiled in default WAL=0 builds, so this stayed latent until WAL=1 was exercised across the optimization-flag hypercube.