C sizeof expr without parentheses fails to parse

• Type: bug (cparser), likely EASY. Track C.
• Found: 2026-07-06 c-testsuite run.

Failing test

• 00038: if (sizeof 0 < 2) — "Expected: ), but got: (Kind: 2, Line: 8)". sizeof unary-expression is valid C; parens only required for type names. Same test also uses sizeof p (ident) and sizeof(&x).

Fix site

cparser.inc sizeof parsing: if next token isn't (, or ( is followed by an expression not a type name, parse unary-expression.

Gate

Drop 00038.c from test/c-conformance/pxx.skip; runner green.

Log

• 2026-07-06 — resolved, commit 92390c01.