all: add support for clang-tidy

src/compress/compress_lzma.cpp

@@ -207,9 +207,12 @@ error:
 **************************************************************************/
 
 // ensure proper nullptr usage
+// TODO later: examine why we need this in the first place
 #include <cstddef>
 #undef NULL
+// NOLINTBEGIN(clang-analyzer-optin.cplusplus.*)
 #define NULL nullptr
+// NOLINTEND(clang-analyzer-optin.cplusplus.*)
 #if defined(__GNUC__)
 #undef __null
 #define __null nullptr

src/compress/compress_zlib.cpp

@@ -27,8 +27,10 @@
 #include "../conf.h"
 #include "compress.h"
 #include "../util/membuffer.h"
+// NOLINTBEGIN(clang-analyzer-optin.performance.Padding)
 #include <zlib/zlib.h>
 #include <zlib/deflate.h>
+// NOLINTEND(clang-analyzer-optin.performance.Padding)
 
 void zlib_compress_config_t::reset() noexcept {
     mem_clear(this);