Defined in 4 files as a macro:
- external/apache2/llvm/dist/llvm/lib/Support/regex_impl.h, line 91 (as a macro)
- external/bsd/nvi/dist/regex/regex.h, line 101 (as a macro)
- include/regex.h, line 133 (as a macro)
- tests/lib/libc/regex/main.c, line 60 (as a macro)