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[avr-gcc-list] Strings: escape sequence to insert arbitrary hex value ?

From: Vincent Trouilliez
Subject: [avr-gcc-list] Strings: escape sequence to insert arbitrary hex value ?
Date: Thu, 5 Feb 2009 05:32:51 +0100


All on-line tutorials on C just do'nt seem to cover all these practical
little things I need... these tutorials aren't much help for
 day to day issues with microcontroller programming I find :-/

Problem: in the strings I define, some of the characters are custom
defined (ASCII codes 0 to 7 in a text LCD module).

I have some defines like such:

#define LCD_CUSTOM_CHAR_FOO <any value from 0 to 7 and 0x80 and up>

char example[] = "Example String";

Now I need to insert the define "LCD_CUSTOM_CHAR_FOO" somewhere in
the string, and have the compiler replace it with the hex code it
stands for... how to instruct the compiler to do so ?!



Vince, the devil is in the detail they say...

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