[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #1280: Implement fseeko and ftello

[GitBox <gi...@apache.org>]

xiaoxiang781216 commented 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.


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