HDF5: Create file if it doesn't exist yet

openPMD · Jul 5, 2021 · 4537dff · 4537dff
1 parent 8adccde
commit 4537dff
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/src/IO/HDF5/HDF5IOHandler.cpp b/src/IO/HDF5/HDF5IOHandler.cpp
@@ -182,7 +182,14 @@ HDF5IOHandlerImpl::createFile(Writable* writable,
             flags = H5F_ACC_TRUNC;
             break;
         case Access::APPEND:
-            flags = H5F_ACC_RDWR;
+            if( auxiliary::file_exists( name ) )
+            {
+                flags = H5F_ACC_RDWR;
+            }
+            else
+            {
+                flags = H5F_ACC_TRUNC;
+            }
             break;
         case Access::READ_WRITE:
             flags = H5F_ACC_EXCL;