xiaoxiang781216 edited a comment on pull request #1280: URL: https://github.com/apache/incubator-nuttx/pull/1280#issuecomment-648636305
> what's the point to have prototypes without implementations? Normally, I will try to implement the function if it isn't to hard like: https://github.com/apache/incubator-nuttx/pull/1279 But, it's hard for utimes/chmod/fchmod since VFS layer lack these concept. On the other hand, the standard c++ library(e.g. libc++) using all most of c standard functions in header files like this: ``` #include <__config> #include <stdio.h> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) #pragma GCC system_header #endif _LIBCPP_BEGIN_NAMESPACE_STD using ::FILE; using ::fpos_t; using ::size_t; using ::fclose; ... ``` but don't really use them inside the library. So the declaration but no implementation could avoid to make the unacceptable change to the 3rd party code. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
