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

From: Theodore A. Roth
Subject: [avr-libc-dev] [RFC] Add vfprintf_P() and vfscanf_P() functions.
Date: Thu, 16 Oct 2003 11:39:23 -0700 (PDT)

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 --
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

Attachment: avr-libc-vfprintf_p.diff
Description: Text document

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