Change Details

Characters 128-255 (typically those from single byte locales) will be negative for char type, and character&BACKSL would incorrectly produce 'true'; cast the character we want to test to unsigned char. While here, use proper iswalpha() for wint_t argument. PR: 264275, 274032 Fixes: adeebf4cd47c ("regex(3): Interpret many escaped ordinary...")

- cast GETNEXT to unsigned where it is being promoted to int to prevent sign-extension (really it would have been better for PEEK*() and GETNEXT() to return unsigned char; this would have removed a ton of (uch) casts, but it is too intrusive for now). - fix an isalpha that should have been iswalpha PR: 264275, 274032 Obtained from: NetBSD

Characters 128-255 (typically those from single byte locales) will be negative for char type,- cast GETNEXT to unsigned where it is being promoted to int to prevent sign-extension (really it would have been better for PEEK*() and GETNEXT() to return unsigned char; and character&BACKSL would incorrectly produce 'true';this would have removed a ton of (uch) casts, cast the character we want to test to unsigned char.but it is too intrusive for now). - fix an isalpha that should have been iswalpha While here, use proper iswalpha() for wint_t argument. PR: 264275, 274032 Fixes: adeebf4cd47c ("regex(3): Interpret many escaped ordinary...")Obtained from: NetBSD