🚨 suppress some unhelpful warnings

.clang-tidy

@@ -1,4 +1,5 @@
 Checks: '*,
+         -android-cloexec-fopen,
          -cppcoreguidelines-avoid-goto,
          -cppcoreguidelines-avoid-magic-numbers,
          -cppcoreguidelines-avoid-non-const-global-variables,
@@ -15,6 +16,7 @@ Checks: '*,
          -hicpp-function-size,
          -hicpp-no-array-decay,
          -hicpp-no-assembler,
+         -hicpp-signed-bitwise,
          -hicpp-uppercase-literal-suffix,
          -llvm-header-guard,
          -llvm-include-order,