On ARM platforms, `__dso_handle` is used for dynamic shared objects. But it is also required if global static objects are used. To avoid that `sys/cpp11_compat` is required only for using the (re)defined `new`/`delete` operators, `__dso_handle` is moved to module `sys/cpp_new_delete`
The `new` and `delete` operators that don't need `libtsdc++` are also provided by module `sys/cpp_new_delete` for platforms that don't have the `libstdc++`. Since these operators in `sys/cpp11-compat` are just wrappers for standard `malloc`/`free` functions like in `sys/cpp_new_delete`, the `new`/`delete` operators that don't need `libstdc++` are used from `sys/cpp_new_delete`. Only the `new`/`delete` operators that require the `libstd++` are left in `sys/cpp11-compat`.
So it is sufficient for the use of the (re)defined `new`/`delete` operators that an application uses the module `sys/cpp_new_delete` instead of `sys/cpp11-compat` and thus also works on platforms without `libstdc++`.
This provides the same functionality as `static_assert()` provided by
C11 and has no advantages compared to it. Hence, encourage users to use
standard C functionality instead.
On some platforms `libstdc++` is not used or not available, like on the AVR. Such platforms can use this module to implement the C++ `new` and `delete` operators using `malloc` and `free` respectively. However, to be thread-safe, a thread-safe implementation of `malloc` and `free` must be present.
R0.14b (April 17, 2021)
Made FatFs uses standard library <string.h> for copy, compare and search instead of built-in string functions.
Added support for long long integer and floating point to f_printf(). (FF_STRF_LLI and FF_STRF_FP)
Made path name parser ignores the terminating separator to allow "dir/".
Improved the compatibility in Unix style path name feature.
Fixed the file gets dead-locked when f_open() failed with some conditions. (appeared at R0.12a)
Fixed f_mkfs() can create wrong exFAT volume due to a timing dependent error. (appeared at R0.12)
Fixed code page 855 cannot be set by f_setcp(). (appeared at R0.13)
Fixed some compiler warnings.
- http://elm-chan.org/fsw/ff/updates.txt
A couple of `stdio` backend implementations allow to check for the number of available bytes for reading before the blocking `stdio_read` is called. This helps to implement non-blocking functionalities while waiting for `stdin`.
