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Re: [avr-gcc-list] Initilizing complex const arrays : syntax ?

From: Jesper Hansen
Subject: Re: [avr-gcc-list] Initilizing complex const arrays : syntax ?
Date: Sun, 18 Sep 2005 23:47:19 +0200
User-agent: Mozilla Thunderbird 1.0.6 (Windows/20050716)

Vincent Trouilliez wrote:
Now I am having problems using "printf" with my strings...
if I do : printf("blah blah") it works perfectly, but if I try to use
the array of strings I just defined as constants in ui.c, well it
doesn't work quite as well sadly...

for example :

void main(void)

const char a[] = "test";
printf("%s", a);


works fine, but :
void main(void)

printf("%s", param_list[0].desc);


will compile perfectly, but it will not display anything...

Do I need to use some variant of the printf function when displaying
data declared with the __ATTR_PROGMEM__ attribute ? Doesn't the compiler
take care of this automatically ?

look up printf_P in the avr-libc documentation


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