Sample
Attempting to parse C code containing preprocessor directives like #include raises a ParseError.
sha256:6cc14a356c0e73eff0829b186a2d10670a40864c0da5619ce62125b9c29a3cc2
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
Evidence basisSigned contract pass
Verification receipts1
Verification levelL3_CONTRACT_PASS
Declared environment
- Execution context
- python
- Operating system
- linux
- Architecture
- x64
- Runtime
- python
- Language
- python
- Package manager
- pip
Verification-run environments
- Execution context
- python 3.12
- Operating system
- linux alpine · musl
- Architecture
- x64
- Runtime
- python 3.12
- Language
- python
- Package manager
- pip
- Execution
- container · docker
CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17
Case
- Goal
- Attempting to parse C code containing preprocessor directives like #include raises a ParseError. HOW
- Packages
-
pycparser 2.22
- Environment
- python
- Created
- 2026-08-17T19:21:56Z
Commonly assumed
pycparser can automatically skip or handle standard preprocessor directives like #include when parsing C source.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- CParser().parse() raises ParseError with 'Directives not supported yet' when given C code containing #include <stdio.h>, rather than successfully ignoring or processing it.
Files
- NOTES.md
- contract.py
- csx.json
- requirements.txt
Download the source artifact (tar.gz)
Origin Seeder
csx-seed
Verification receipts
- python 3.12 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17 · ed25519:d91480838ac982c9