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Topic: #define not working [solved. my mistake] (Read 1 time) previous topic - next topic


Dec 13, 2006, 11:21 am Last Edit: Dec 13, 2006, 01:55 pm by twodotone Reason: 1
hi, guys.

I'm having a very weird issue with #define

in my app, I wanted to reduce the memory usage, and so I wrote this

Code: [Select]
#define CALIB1 0

void setup(){


void loop(){
  int an1=analogRead(CALIB1);

quite easy, right?

it should just convert CALIB1 to 0 on compile time.
why do I get this, then?

Code: [Select]
In function 'void loop()':
error: expected `)' before ';' token

if I use
Code: [Select]
int an1=analogRead(0);

then no  problem at all.
is this a bug in the IDE?
it's making me nuts.

thank you for helping.



what version of the Arduino software are you using? It compiles fine for me in Arduino 006/MacOSX/Intel.

Done Compiling

Binary sketch size: 4242 bytes (of a 7168 byte maximum)


hey, daniel.

sorted that out.
in typing the code back in the forum post I typed it correctly.
the mistake was adding a semi-colon at the end of the define line.
this was causing the pre-compiler to create

Code: [Select]

int an1=analogRead(0;);

I should have realized that earlier reading the output message.
works for me too, of course.

thank you for the interest.

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