As far as I know hex values won't work as expected but octal does! I used:
static char s46[] __attribute__ ((progmem)) = "Hei\342gas"; /* 46 */ which is written as "Heißgas" on an LCD. Knut > -----Original Message----- > From: > avr-gcc-list-bounces+knut.schwichtenberg=siemens....@nongnu.or > g > [mailto:avr-gcc-list-bounces+knut.schwichtenberg=siemens....@n ongnu.org] On Behalf Of Chris Kuethe > Sent: Thursday, February 05, 2009 8:07 AM > To: David Brown > Cc: avr-gcc-list@nongnu.org > Subject: Re: [avr-gcc-list] Re: Strings: escape sequence to > insert arbitrary hex value ? > > #include <stdio.h> > > int main(){ > char *m = "try use > \x68\x65\x78\x20\x65\x73\x63\x61\x70\x65\x73\x3f"; > > printf("%s\n", m); > return 0; > } > > On Wed, Feb 4, 2009 at 11:58 PM, David Brown > <david.br...@hesbynett.no> wrote: > > Vincent Trouilliez wrote: > >> > >> On Thu, 5 Feb 2009 15:18:44 +1030 > >> "Daniel O'Connor" <docon...@gsoft.com.au> wrote: > >> > >>> You can define it like so.. > >>> #define LCD_CUSTOM_CHAR_FOO "\012" > >>> > >>> then you can do.. > >>> char example[] = "foo" LCD_CUSTOM_CHAR_FOO "bar"; > >>> > >>> You might be able to do something more clever but I don't > know how :) > >> > >> > >> Thanks Daniel (and Ivan as well, off-list), that worked a > treat ! :-) > >> > >> Only drawback I found, is that I must now have TWO > #defines for each and > >> every custom character: one #define to represent the character as a > >> string, so I can embed it into a string, and also all the > #defines I > >> already had, which represent the actual numerical value, for when I > >> need to print an individual/discrete character rather than print a > >> string. It's not the end of the world, but not very > elegant either, so > >> if anybody has a solution to make do with only one define > per character, > >> I am all ears ;-) > >> > > > > An alternative idea is to find an ASCII character that you > don't need > > otherwise (say, "~"), and use it in your strings. Then do > on-the-fly > > conversion when outputing the strings: > > > > char example[] = "foo~bar"; > > > > void lcdWriteString(const char* p) { > > while (char c = *p++) { > > if (c == '~') { > > lcdWriteChar(LCD_CUSTOM_CHAR_FOO); > > } else { > > lcdWriteChar(c); > > } > > } > > } > > > > As long as you don't have too many, the overhead won't be > bad (and the > > substitute characters won't be too confusing). It should > also work with > > characters >= 128 as the substitutes, I believe. > > > > > > > > > > > > _______________________________________________ > > AVR-GCC-list mailing list > > AVR-GCC-list@nongnu.org > > http://lists.nongnu.org/mailman/listinfo/avr-gcc-list > > > > > > -- > GDB has a 'break' feature; why doesn't it have 'fix' too? > > > _______________________________________________ > 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
