関数の外側の埋め込みCの行番号に移動

Question

関数の外にある埋め込みCで行番号を呼び出すことはできますか？

私はif文のループにしていますので、

シンプル後藤ラベルコマンドが動作しないことができます。私は、エラーがあなたが避けるために、あなたのコードを再構築すべきである200

void followWall(void) 
{ 

begin: 

    int desired = getADC();              //store the first ADC reading as the desired distance from the wall 
    int right = 200;                //pre set all variables to be called in the drive function 
    int left = 200;                //ints are needed here for bit masking later on to stop overflow 
    char rightH = 0; 
    char leftH = 0; 
    float k = 0.5;                //constant to times the error to fine tune the response 
    drive(rightH,right,leftH,left);            //drive the robot to the pre set variables 

    while(bumpFlag == 0)              //while the robot has not been bumped or encounted a cliff 
    { 
     int actual = getADC();             //call a new ADC reading everytime at start of while as the current reading 
     rightH = 0; 
     leftH = 0;                //set variables back to default to stop constant increase and decrease in variables 
     left = 200; 
     right = 200; 
     char error = abs(actual-desired);          //calculate the error by minusing the actual distance to the desired 

     if(motorAngle < 180)              //wall on left between 1st and 2nd quadrant 
     { 
      if(error > 200) 
      { 
       stop(); 
       moveStepper(33,0); 
       goto begin; 
      } 
      if (actual > desired)             
      { 
       right -=((error)*k);            
       left += ((error)*k);            
      } 
      else if (actual < desired)           
      { 
       left -=((error)*k);            
       right +=((error)*k);            
      } 
     } 
     else if (motorAngle > 180)            
     { 
      if(error > 200) 
      { 
       stop(); 
       moveStepper(33,1); 
       goto begin; 
      } 
      if (actual > desired)             
      { 
       left -=((error)*k);            
       right +=((error)*k);            
      } 
      else if (actual < desired)           
      { 
       right -=((error)*k);            
       left +=((error)*k);            
      } 

     } 
    drive(rightH,right,leftH,left);              bumpSensor();                
    setLCDCursor(0x09); 
    writeLCDNumber(convert(actual));           //constantly write the converted AC value on the LCD 
    } 
    stop();                  //stop the robot 
} 

Answer 1

より大きくなると機能を再起動しますGOTO。別のループが必要です。このようなもの。

void followWall(void) 
{ 
    repeat = 0; 
    do // add this loop here 
    { 
     ... 
     ... 
     while(bumpFlag == 0) 
     { 
     repeat = 0; 
     .. 
     .. 
     if(motorAngle < 180) 
     { 
      .. 
      if(error > 200) 
      { 
      .. 
      .. 
      repeat = 1; 
      break; 
      } 
     } 
     else if (motorAngle > 180) 
     { 
      .. 
      if(error > 200) 
      { 
      .. 
      .. 
      repeat = 1; 
      break; 
      } 
     } 
     } 
    } while (repeat == 1); 
}