llvm/clang-tools-extra/test/clang-tidy/checkers/readability/Inputs/identifier-naming/user-header.h

#ifndef USER_HEADER_H
#define USER_HEADER_H

#define USER_MACRO(m) int m = 0

namespace USER_NS {
class object {
  int member;
};

float global;

void function() {
}
}

#endif // USER_HEADER_H