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Avoid undefined behavior on non-ASCII bytes in the text date and timestamp decoders - #761

Merged

larskanis merged 5 commits into

czj:fix/isdigit-unsigned-char

Oct 26, 2026

Merged

Avoid undefined behavior on non-ASCII bytes in the text date and timestamp decoders#761
larskanis merged 5 commits into
ged:masterfrom
czj:fix/isdigit-unsigned-char

Commits on Oct 26, 2026
- Check digits with rb_isdigit() in the text date and timestamp decoders
  czj
  committed
  3bb879d
- Feed non-ASCII bytes to every digit check in the specs
  czj
  committed
  1beacd3
- Also feed a lone 0xB2 byte to the digit checks in the specs
  czj
  committed
  4926fb9
- Fail the specs when the C-ext calls a ctype.h function
  czj
  committed
  de1a7a7
- Read the C sources as binary in the ctype.h spec
  czj
  committed
  65c2dad