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[Frama-c-discuss] verification of enum safety

  • Subject: [Frama-c-discuss] verification of enum safety
  • From: dmentre at linux-france.org (David MENTRE)
  • Date: Thu, 13 Feb 2014 11:40:28 +0100
  • In-reply-to: <B517F47C2F6D914AA8121201F9EBEE6701C7BB59DEA9@Mail1.FCMD.local>
  • References: <B517F47C2F6D914AA8121201F9EBEE6701C7660449BC@Mail1.FCMD.local>, <52F9EE09.2060600@cea.fr> <B517F47C2F6D914AA8121201F9EBEE6701C7BB59DEA9@Mail1.FCMD.local>
Hello,

Le 12/02/2014 20:31, Dharmalingam Ganesan a ?crit :
> I wonder whether there is way for RTE and WP to automatically annotate and check such invalid usages.

You can check it using a recent version of Clang compiler.

"""
$ clang -Wall enum.c
enum.c:8:11: warning: implicit conversion from enumeration type 'DAYS' to
       different enumeration type 'COLOR' [-Wenum-conversion]
   color = TUE; /* This is invalid - COLOR should be RED or BLUE*/
         ~ ^~~
1 warning generated.

$ clang -v
clang version 3.3 (tags/RELEASE_33/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
"""

Best regards,
david

PS: As far as I know, there is no such -Wenum-conversion option in gcc.