osobhandClaude Opus 5.5 95dcb04454 fix(format): scale-offset float decode with libhdf5's arithmetic ...

D-scale floats were rebuilt as `minval + code / 10^D` in f64 and then
rounded to f32 once, but libhdf5 (H5Z_scaleoffset_modify_3/4 with
`float`/`powf`) computes `(float)(int)code / powf(10, D) + min` in single
precision. The two differ by 1 ULP for some values: le_data.h5
/Scale_offset_float_data_{le,be} gave 1.6663332 (0x3fd54a69) where
libhdf5 gives 1.6663333 (0x3fd54a6a). Use f32 arithmetic for 4-byte
floats and `(double)(long)code / pow(10, D) + min` for 8-byte ones.

Test: scaleoffset_float_dscale_matches_libhdf5_bits (le_data.h5 float
LE/BE and double chunks, bit-exact against h5py); failed before.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

2026-09-25 21:15:49 -05:00

..

clawhdf5

feat(agent): MemoryConfig::float16 stores half-precision embeddings

2026-09-24 12:00:38 -05:00

clawhdf5-accel

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-agent

docs: withdraw the ZeroClaw integration claims

2026-09-25 11:08:41 -05:00

clawhdf5-android

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-ann

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-bench

feat(agent): Ed25519-signed checkpoints

2026-09-25 10:13:34 -05:00

clawhdf5-cli

feat(agent): Ed25519-signed checkpoints

2026-09-25 10:13:34 -05:00

clawhdf5-derive

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-filters

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-format

fix(format): scale-offset float decode with libhdf5's arithmetic

2026-09-25 21:15:49 -05:00

clawhdf5-gpu

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-io

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-migrate

docs: withdraw the ZeroClaw integration claims

2026-09-25 11:08:41 -05:00

clawhdf5-napi

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-netcdf4

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

clawhdf5-py

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00

libaec-sys

build: declare Rust 1.92 as the MSRV and check it in CI

2026-09-23 11:05:26 -05:00