一个很好的程序分析工具，支持刘敏感分析。采用类型推断和约束求解的方法，代表了一种程序分析的流派。在PLDI上发表过文章！ -Cqual is a type-based analysis tool that provides a lightweight, practical mechanism for specifying and checking properties of C programs. Cqual extends the type system of C with extra use