aaron.ballman added inline comments.

================
Comment at: 
docs/clang-tidy/checks/readability-implicit-bool-conversion.rst:77-78
 
-- boolean expression/literal to integer,
+- boolean expression/literal to integer (conversion from boolean to a single
+  bit bitfield is explicitly allowed),
 
----------------
I think it should only be allowed if the bit-field type is unsigned; signed 
bit-fields with a single bit are inherently not portable because you don't know 
if that bit represents a sign bit or a value bit (imagine a sign and magnitude 
integer representation).

C++20 is changing this by standardizing on two's complement, but earlier 
versions of C++ (and currently, all versions of C) are still impacted, so 
another approach is to gate this on the language standard mode that's in effect.


Repository:
  rCTE Clang Tools Extra

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D54941/new/

https://reviews.llvm.org/D54941



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