Re: [avr-libc-dev] missing pgm_read_ptr

[Maurin Donneaud]

Oops sorry sorry,

it is not pgm_read_byte but pgm_read_ptr who is missing.

Best regards,

Maurin

Le 07/07/2015 08:44, Joerg Wunsch a écrit :
> As Maurin Donneaud wrote:
>
> > I have linux avr-libc 1:1.8.0-4.1 installed
> > I'm wondering why pgmspace.h do not have the pgm_read_byte macro ?
> $ fgrep pgm_read_byte ~/src/avr-libc/include/avr/pgmspace.h
>      pgm_read_byte_near() or pgm_read_word_near() instead of
>      pgm_read_byte_far() or pgm_read_word_far() since it is more efficient that
>      \def pgm_read_byte_near(address_short)
> #define pgm_read_byte_near(address_short) __LPM((uint16_t)(address_short))
>      \def pgm_read_byte_far(address_long)
> #define pgm_read_byte_far(address_long)  __ELPM((uint32_t)(address_long))
>      \def pgm_read_byte(address_short)
> #define pgm_read_byte(address_short)    pgm_read_byte_near(address_short)
>
> So well, I think it's just there.