system
October 9, 2010, 9:58pm
1
Hi,
I can't get this to compile properly (strip down version of my real code..):
#if (TEST_MODE)
void UselessFunction();
#endif
void setup()
{
}
void loop()
{
}
#if (TEST_MODE)
void UselessFunction()
{
}
#endif
Removing both #if does compile:
void setup()
{
}
void loop()
{
}
I get the same result on arduino 19 and 20.
seem like I hit this: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1261506776
I wonder what would be the strategy to use such enable/disable code with arduino IDE...
it always keep adding the function definition regardless of the #define value as well...
Mart
system
October 9, 2010, 10:40pm
2
This works:
[MAIN TAB]
void setup() {
test(); //call test from the Test tab
}
void loop() {/*nothing to loop*/}
[Test TAB]
#define TEST
#ifdef TEST
void test() {Serial.println("TEST");}
#else
void test(){}
#endif
You simply need to put such things in a different tab. I guess the pre-preprocessor of the IDE messes up preprocessor uses like this.
system
October 9, 2010, 10:41pm
3
#if what? Do you mean #ifdef ?
system
October 9, 2010, 11:17pm
4
AlphaBeta,
I am trying to use only one .pde (main sketch) and use classes for everything else (.h & .cpp) for linux UIT purposes. I think that's where it get tricky with the arduino pre-processing...
thanx for opening my eyes
westfw
October 10, 2010, 3:28am
5
The ardunio pre-processor does some things to detect the first C statement in your .pde file, and it gets confused by some pre-processor statements. Move a piece of real C code before your attempts to use #if , and you should be fine. (or add a dummy declaration)
byte foo;
#if defined(TEST_MODE)
void UselessFunction();
#endif
void setup()
{}
void loop()
{}
#if defined(TEST_MODE)
void UselessFunction()
{}
#endif
system
October 10, 2010, 10:09am
6
I think maybe this is even closer to what OP wants:
//#define TEST_MODE
byte foo;
#if defined(TEST_MODE)
void UselessFunction();
#else
void UselessFunction(){}
#endif
void setup()
{UselessFunction();}
void loop()
{}
#if defined(TEST_MODE)
void UselessFunction()
{Serial.println("TEST");}
#endif
IMHO I think it's cleaner to simply add a new tab, or #include a .c
