You can find out your answer by looking in the stdint.h file in <install>\avr\include:
/** \name Fastest minimum-width integer types Integer types being usually fastest having at least the specified width */ ... typedef uint8_t uint_fast8_t; If you have it in your stdint.h file, then it's supported. ;-) Eric > -----Original Message----- > From: > [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > org] On Behalf Of dimax un > Sent: Monday, January 29, 2007 2:05 PM > To: Joerg Wunsch > Cc: avr-gcc-list@nongnu.org > Subject: Re: [avr-gcc-list] AVR-GCC variable size > > Hi what is the > uint_fast8_t ? What is the difference from regular uint8_t? > What gcc version is it supported from? > > thanks. > > > On 1/29/07, Joerg Wunsch <[EMAIL PROTECTED]> wrote: > > "Ricardo Albarracin B." <[EMAIL PROTECTED]> wrote: > > > > > What's size the: (using avr-gcc 3.4.5) > > > > > > char -> 1 byte > > > int -> 2 byte > > > short -> ? > > > long -> 4 byte > > > float -> ? > > > double -> ? > > > > Well, you could always use the sizeof operator. ;-) > > > > 1, 2, 2, 4, 4, 4 > > > > There's also long long with 8 bytes. > > > > For integer types, better use the names from <stdint.h>, > like uint8_t, > > int16_t, uint_fast8_t etc. > > > > -- > > cheers, J"org .-.-. --... ...-- -.. . DL8DTL > > > > http://www.sax.de/~joerg/ NIC: JW11-RIPE > > Never trust an operating system you don't have sources for. ;-) > > > > > > _______________________________________________ > > AVR-GCC-list mailing list > > AVR-GCC-list@nongnu.org > > http://lists.nongnu.org/mailman/listinfo/avr-gcc-list > > > > > -- > ;------------------------------------------------------- > ; Micro connection to the MacroVision > ; http://www.xdimax.com > ;-------------------------------------------------------- > > > _______________________________________________ > AVR-GCC-list mailing list > AVR-GCC-list@nongnu.org > http://lists.nongnu.org/mailman/listinfo/avr-gcc-list > _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-gcc-list