Make it compile with C++20 and protobuf 29.x

Author: ktf

.gitignore

@@ -33,3 +33,6 @@
 
 # Debugging
 .gdb_history
+
+# IDE integration
+compile_commands.json

CMakeLists.txt

@@ -29,11 +29,11 @@ message(STATUS "Install directory = ${CMAKE_INSTALL_PREFIX}")
 
 #
 #--- FLAGS ---------------------------------------------------------------------------
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
-set(CMAKE_CXX_FLAGS "-Wall -Wextra")
+set(CMAKE_CXX_FLAGS "-Wall -Wextra -Wno-error=null-dereference")
 set(CMAKE_CXX_FLAGS_DEBUG "-O0 -fno-inline -fno-omit-frame-pointer -fmax-errors=10")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O3 -ffast-math -DNDEBUG -fno-omit-frame-pointer")
 set(CMAKE_CXX_FLAGS_RELEASE "-O3 -ffast-math -DNDEBUG")
@@ -111,7 +111,7 @@ list(REMOVE_DUPLICATES Boost_COMPONENTS)
 find_package(Boost ${FairMQ_Boost_VERSION} REQUIRED COMPONENTS ${Boost_COMPONENTS})
 
 find_package(ppconsul REQUIRED)
-find_package(Protobuf REQUIRED)
+find_package(Protobuf CONFIG REQUIRED)
 find_package(gRPC CONFIG REQUIRED)
 
 find_package(AliceO2 REQUIRED)

src/common/SubTimeFrameFileWriter.cxx

@@ -80,7 +80,7 @@ namespace impl {
     const auto lHdrCnt = sizeof(sInfoData) / sizeof(SidecarInfoData);
 
     for (std::size_t i = 0; i < lHdrCnt; i++) {
-      fmt::format_to(fmt::appender(lHeader), sInfoData[i].mHdrFmt, sInfoData[i].mHdr);
+      fmt::format_to(fmt::appender(lHeader), fmt::runtime(sInfoData[i].mHdrFmt), sInfoData[i].mHdr);
       fmt::format_to(fmt::appender(lHeader), "{}", (i < lHdrCnt - 1) ? " " : "");
     }
 
@@ -90,7 +90,7 @@ namespace impl {
   template<class T>
   static void sInfoVal(fmt::memory_buffer &pBuf, const SidecarInfoDataType pType, const T& pVal) {
     const auto lHdrCnt = sizeof(sInfoData) / sizeof(SidecarInfoData);
-    fmt::format_to(fmt::appender(pBuf), sInfoData[pType].mValFmt, pVal);
+    fmt::format_to(fmt::appender(pBuf), fmt::runtime(sInfoData[pType].mValFmt), pVal);
     fmt::format_to(fmt::appender(pBuf), "{}", (pType < lHdrCnt - 1) ? " " : "");
   }
 }

src/common/base/DataDistLogger.h

@@ -225,7 +225,7 @@ class DataDistLogger {
 
   DataDistLogger& operator<<(const char* cstr) {
     if (cstr != NULL) {
-        fmt::format_to(fmt::appender(mLogMessage), cstr);
+        fmt::format_to(fmt::appender(mLogMessage), fmt::runtime(cstr));
     }
     return *this;
   }