[PATCH] libc: fix fropen/fwopen compile warnings

[Corinna Vinschen]

Hi Alexey,

On Dec  7 10:59, Alexey Lapshin wrote:
> This patch fixes warnings that appears when compiling:
> 
> 
> #define fwopen(__cookie,__fn) funopen(__cookie, (int (*)())0, __fn,
> (fpos_t (*)())0, (int (*)())0)
> Expands to:
> 
> funopen(__null, (int (*)())0, &app_printf, (fpos_t (*)())0, (int
> (*)())0)
> argument of type "int (*)()" is incompatible with parameter of type
> "int (*)(void *__cookie, char *__buf, int __n)"C/C++(167)
> invalid conversion from 'fpos_t (*)()' {aka 'long int (*)()'} to
> 'fpos_t (*)(void*, fpos_t, int)' {aka 'long int (*)(void*,
> 
> Discussion is here:
> https://github.com/espressif/arduino-esp32/issues/7407

Pushed.


Thanks,
Corinna