osobhandClaude Opus 5.5
bce07e9cb9
Fixture written by libhdf5 2.2.0 (built from tag 2.2.0) through ctypes: every bit pattern of FP4 E2M1, FP6 E2M3/E3M2, FP8 E4M3/E5M2 and a bfloat16 LE/BE set, as datasets and attributes, with what H5Dread/H5Aread return into double and float and the conversion exceptions libhdf5 raises. clawhdf5 already decoded every value as libhdf5 does, including an all-ones exponent as inf/NaN in the OCP formats that have none (documented as a deliberate match in known-issues). - data_read: NaNs of non-native float layouts get libhdf5's bits (sign kept, every mantissa bit set) in f64 and f32. - h5rs dump/ls name these types as h5dump/h5ls 2.x do (H5T_FLOAT_F4E2M1, "FP4 E2M1 4-bit float", float4-e2m1 ...), checked against h5dump 2.2.0's output of the fixture. - Python bindings read them as h5py 3.16 does (float32 for bfloat16, float16 for the 1-byte formats, file byte order, same bytes as h5py); writing them in 'r+' is refused. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
2 lines
14 KiB
JSON
2 lines
14 KiB
JSON
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