rstudio/rstudio — comment on commit acb0e4299d9f35e96dc28510e71240432020e4d6
File: src/cpp/core/system/Win32RequestResponsePipe.cpp line 177
By jcheng5:

Yes, any omitted fields are initialized to 0. http://stackoverflow.com/questions/3853339/any-reason-to-prefer-memset-zeromemory-to-value-initialization-for-winapi-struct