05-12-2018, 05:04 PM
As known, EN 50128:2011 standard asks for evidence that a tool failure might not impact the software safety. In particular, emphasis is placed upon tools that might generate outputs which can directly or indirectly contribute to the executable code (including data) of the safety-related system. Therefore compilers are the first to be assessed in this respect. In case of C language, regardless if certain evidence is available of a compiler full conformance with ISO/IEC 9899:1999 (C99) standard, I was wondering if, at least based on gathered experience, the source code full compliance with MISRA C:2012 makes the source code itself more "robust" against possible residual failures of the compiler. In other words, if it can be said that upon fully complying with MISRA C:2012, the largest part of current compilers does not exhibit failures.
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