TL;DR – check out elfs-clang-plugins, cool plugins for clang made at elastifile.
Have you ever made the mistake of returning a bool instead of an enum?
enum Result do_something(void) {
...
return true;
}In C that’s valid (in C++ you can use ‘class enum’ to avoid it, but if you didn’t you’d have the same problem).
No compiler that I know of warns about this C code. One of our newly-open-sourced clang plugins, flags this (and many other) enum-related mistakes:
clang -Xclang -load -Xclang ./clang_plugins.so \
-Xclang -add-plugin -Xclang enums_conversion \
-c /tmp/test.c
/tmp/test.c:7:12: error: enum conversion to or from enum Result
return true;
^
1 error generated.The package includes:
- enums_conversion: Finds implicit casts to/from enums and integral types
- include_cleaner: Finds unused #includes
- large_assignment: Finds large copies in assignments and initializations (size is configurable)
- private: Prevents access to fields of structs that are defined in private.h files
More information at https://github.com/sinelaw/elfs-clang-plugins
Because C is… not so safe.
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