[avr-libc-dev] [RFC] Add vfprintf_P() and vfscanf_P() functions.

[Theodore A. Roth]

The attached patch adds the vfprintf_P() and vfscanf_P() functions.

These are simply wrappers around the vfprintf() and vfscanf()
functions respectively.

Without these functions, it is not possible to write functions like
the following:

-- begin example --
void
ap_out_screen (FILE *fp_out, int row, int col, const char * PROGMEM fmt, ...)
{
    va_list ap;

    ap_cursor_pos (fp_out, row, col);

    va_start (ap, fmt);
    vfprintf_P (fp_out, fmt, ap);
    va_end (ap);
}
-- end example --

Any objections to this addition?

I think this is suitable for inclusion on the 1.0 branch too since it
only extends the API. Any objections to that?

Ted Roth

avr-libc-vfprintf_p.diff
Description: Text document