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examples: Remove heap allocation from C++ examples

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Cleanup of UPM C++ examples.  Switched from heap allocation to
stack allocation when possible.  This simplifies the samples since it
removes the need for explicit memory management.  A script was used to
identify and replace pointer use.  To simplify the replace script, I
re-formatted the C++ examples using the UPM .clang-format file.
Unfortuantely this changes the look of the UPM C++ examples to a large
degree.  However, examples will now have a standard look/feel and
uniform formatting.

    * Ran clang-format w/provided UPM .clang-format file
    * Removed new's/delete's whenever possible (left those in interface
      examples)
    * Added IIO sensor library implementation of callback void* arg
    * Converted all sleeps to upm defined delays (added header when
      necessary)
    * Scrubbed CXX example includes

Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Noel Eck
2017-08-30 15:00:29 -07:00
committed by Mihai Tudor Panu
parent bd6e4ec786
commit 5cefe7f5f3
290 changed files with 7976 additions and 8520 deletions
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44
examples/c++/md.cxx
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@@ -22,38 +22,38 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <signal.h>
#include <iostream>
#include "md.hpp"
#include "upm_utilities.h"
using namespace std;
int main(int argc, char **argv)
int
main(int argc, char** argv)
{
//! [Interesting]
// Instantiate an I2C Motor Driver on I2C bus 0
//! [Interesting]
// Instantiate an I2C Motor Driver on I2C bus 0
upm::MD *motors = new upm::MD(MD_I2C_BUS, MD_DEFAULT_I2C_ADDR);
upm::MD motors(MD_I2C_BUS, MD_DEFAULT_I2C_ADDR);
// set direction to CW and set speed to 50%
cout << "Spin M1 and M2 at half speed for 3 seconds" << endl;
motors->setMotorDirections(MD_DIR_CW, MD_DIR_CW);
motors->setMotorSpeeds(127, 127);
sleep(3);
// counter clockwise
cout << "Reversing M1 and M2 for 3 seconds" << endl;
motors->setMotorDirections(MD_DIR_CCW, MD_DIR_CCW);
sleep(3);
// set direction to CW and set speed to 50%
cout << "Spin M1 and M2 at half speed for 3 seconds" << endl;
motors.setMotorDirections(MD_DIR_CW, MD_DIR_CW);
motors.setMotorSpeeds(127, 127);
//! [Interesting]
upm_delay(3);
// counter clockwise
cout << "Reversing M1 and M2 for 3 seconds" << endl;
motors.setMotorDirections(MD_DIR_CCW, MD_DIR_CCW);
upm_delay(3);
cout << "Stopping motors" << endl;
motors->setMotorSpeeds(0, 0);
//! [Interesting]
cout << "Exiting..." << endl;
cout << "Stopping motors" << endl;
motors.setMotorSpeeds(0, 0);
delete motors;
return 0;
cout << "Exiting..." << endl;
return 0;
}