__static_initialization_and_destruction_0

Using Arduino Programming Questions
1

Help, please, what does this mean, this pops up several times in the error window, here is the whole Error window, I really need some help here , I am pulling my hair out, I have been working on this for days.
Charley

WiiRemote\servoWii.cpp.o: In function __static_initialization_and_destruction_0': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:67: multiple definition of myservo'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:63: first defined here
WiiRemote\servoWii.cpp.o: In function __static_initialization_and_destruction_0': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:67: multiple definition of myservo1'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:63: first defined here
WiiRemote\servoWii.cpp.o: In function __static_initialization_and_destruction_0': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:67: multiple definition of wiiremote'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:63: first defined here
WiiRemote\servoWii.cpp.o: In function getSteeringAngle()': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:43: multiple definition of getSteeringAngle()'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:39: first defined here
WiiRemote\servoWii.cpp.o: In function __static_initialization_and_destruction_0': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:67: multiple definition of deg1'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:63: first defined here
WiiRemote\servoWii.cpp.o: In function myapp()': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:40: multiple definition of myapp()'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:36: first defined here
WiiRemote\servoWii.cpp.o: In function loop': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:34: multiple definition of loop'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:30: first defined here
WiiRemote\servoWii.cpp.o: In function setup': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:27: multiple definition of setup'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:23: first defined here
WiiRemote\servoWii.cpp.o: In function __static_initialization_and_destruction_0': C:\Documents and Settings\expressway\My Documents\Arduino\libraries\WiiRemote/servoWii.cpp:67: multiple definition of turn'
servoWii.cpp.o:C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build8487534986814557710.tmp/servoWii.cpp:63: first defined here
servoWii.cpp.o: In function __static_initialization_and_destruction_0(int, int)': servoWii.cpp:(.text._Z41__static_initialization_and_destruction_0ii+0x10): undefined reference to Servo::Servo()'
servoWii.cpp:(.text._Z41__static_initialization_and_destruction_0ii+0x18): undefined reference to Servo::Servo()' servoWii.cpp.o: In function getSteeringAngle()':
servoWii.cpp:(.text._Z16getSteeringAnglev+0xfa): undefined reference to Servo::write(int)' servoWii.cpp:(.text._Z16getSteeringAnglev+0x10a): undefined reference to Servo::write(int)'
servoWii.cpp.o: In function setup': servoWii.cpp:(.text.setup+0x10): undefined reference to Servo::attach(int)'
servoWii.cpp:(.text.setup+0x1c): undefined reference to Servo::attach(int)' WiiRemote\servoWii.cpp.o: In function __static_initialization_and_destruction_0(int, int)':
servoWii.cpp:(.text._Z41__static_initialization_and_destruction_0ii+0x10): undefined reference to Servo::Servo()' servoWii.cpp:(.text._Z41__static_initialization_and_destruction_0ii+0x18): undefined reference to Servo::Servo()'

And here is the program

#include <WiiRemote.h>
#include <Servo.h>

#define STEERING_ANGLE_MAX 180
#define STEERING_ANGLE_MIN 0
#define STEERING_ANGLE_CENTER 90
#define STEERING_ANGLE_STEP 5
Servo myservo; // create servo object to control a servo
Servo myservo1;
int deg1;
int turn;
WiiRemote wiiremote;

void setup()
{

wiiremote.init();
myservo.attach(6); // attaches the servo on pin 3 & 6 to the servo objects
myservo1.attach(3);

}
void loop()
{
wiiremote.task(&myapp);

}

void myapp(void) {
// if (wiiremote.buttonClicked(WIIREMOTE_TWO)) {
int steering_angle = getSteeringAngle();
}

int getSteeringAngle(void) {
double rad; // y accel setup
double deg; // y accel setup
double rad2; // X accel setup
double deg2; // X accel setup

rad = acos((double) wiiremote.Report.Accel.Y);
deg = rad * 180.0 / PI;

rad2 = acos((double) wiiremote.Report.Accel.X);
deg2 = rad2 * 180.0 / PI;

/* clipping */
if (deg > STEERING_ANGLE_MAX) { deg = STEERING_ANGLE_MAX; }
if (deg < STEERING_ANGLE_MIN) { deg = STEERING_ANGLE_MIN; }
if (deg2 > STEERING_ANGLE_MAX) { deg2 = STEERING_ANGLE_MAX; }
if (deg2 < STEERING_ANGLE_MIN) { deg2 = STEERING_ANGLE_MIN; }

if (deg2 > 90) { deg1 = deg2 - 90; }
if (deg2 < 90) { deg1 = deg2 + 90; }

myservo.write(deg2);
myservo1.write(deg1);

}

2

Which version of the IDE are you using? For some reason, with 1.0.1, missing include files are no longer a fatal error. It appears that finding the Servo library is failing, among other things.

Servo myservo;  // create servo object to control a servo
Servo myservo1;

Is this how you count? When numbering variables, number all like instances.

3

I relocated the servoWii.cpp file into the servoWii folder and reduced the errors down to these.
Charley

servoWii.cpp.o: In function __static_initialization_and_destruction_0': C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build371735037533470913.tmp/servoWii.cpp:15: undefined reference to Servo::Servo()'
C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build371735037533470913.tmp/servoWii.cpp:16: undefined reference to Servo::Servo()' servoWii.cpp.o: In function getSteeringAngle()':
C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build371735037533470913.tmp/servoWii.cpp:64: undefined reference to Servo::write(int)' C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build371735037533470913.tmp/servoWii.cpp:65: undefined reference to Servo::write(int)'
servoWii.cpp.o: In function setup': C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build371735037533470913.tmp/servoWii.cpp:28: undefined reference to Servo::attach(int)'
C:\DOCUME~1\EXPRES~1\LOCALS~1\Temp\build371735037533470913.tmp/servoWii.cpp:29: undefined reference to `Servo::attach(int)'

4

PaulS:
Which version of the IDE are you using? For some reason, with 1.0.1, missing include files are no longer a fatal error. It appears that finding the Servo library is failing, among other things.

Servo myservo;  // create servo object to control a servo

Servo myservo1;



Is this how you count? When numbering variables, number all like instances.

do you mean it should be myservo0 and myservo1?

5

do you mean it should be myservo0 and myservo1?

Or myservo1 and myservo2. Of course, even better would be pan and tilt or arm and wrist, or whatever the servos really are for.

6

well, the mystery of the arduino library structure continues, I moved a copy of the servo.h and servo.cpp into the wiiremote folder in libraries and it compiled file, I still dont know if the program works yet because now windows wont recognise the Uno when I plug it in, time to solve the next problem.
Charley

7

easy fix, just had to install the .inf

8

PaulS:
For some reason, with 1.0.1, missing include files are no longer a fatal error.

I can only suppose that was done deliberately, but it seems like a bizarre thing to do.