[cfe-dev] [analyser] memset arguments checker

Alexey Knyshev via cfe-dev cfe-dev at lists.llvm.org
Wed Dec 13 04:54:29 PST 2017

Hi all

I have an idea for memset checker for handling accidental args swap such as:

struct A { ... };
struct A a;
memset(&a, sizeof(struct A), 0); // expected-warning {{possibly wrong order
of arguments 'sizeof(struct A)' and '0' passed as arguments 'value' and

Probably it can be AST checker but in some cases it can be more precise if
it would be extension of CStringChecker. Any suggestions in which way is
more robust for such checker.

Thanks, Alexey K


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