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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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48
examples/c++/uln200xa.cxx
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@ -22,41 +22,41 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include "uln200xa.hpp"
#include "upm_utilities.h"
using namespace std;
int main ()
int
main()
{
//! [Interesting]
//! [Interesting]
// Instantiate a Stepper motor on a ULN200XA Darlington controller.
// Instantiate a Stepper motor on a ULN200XA Darlington controller.
// This was tested with the Grove Gear Stepper Motor with Driver
// This was tested with the Grove Gear Stepper Motor with Driver
// Wire the pins so that I1 is pin D8, I2 is pin D9, I3 is pin D10 and
// I4 is pin D11
upm::ULN200XA* uln200xa = new upm::ULN200XA(4096, 8, 9, 10, 11);
// Wire the pins so that I1 is pin D8, I2 is pin D9, I3 is pin D10 and
// I4 is pin D11
upm::ULN200XA uln200xa(4096, 8, 9, 10, 11);
uln200xa->setSpeed(5);
uln200xa->setDirection(ULN200XA_DIR_CW);
cout << "Rotating 1 revolution clockwise." << endl;
uln200xa->stepperSteps(4096);
cout << "Sleeping for 2 seconds..." << endl;
sleep(2);
cout << "Rotating 1/2 revolution counter clockwise." << endl;
uln200xa->setDirection(ULN200XA_DIR_CCW);
uln200xa->stepperSteps(2048);
uln200xa.setSpeed(5);
uln200xa.setDirection(ULN200XA_DIR_CW);
cout << "Rotating 1 revolution clockwise." << endl;
uln200xa.stepperSteps(4096);
cout << "Sleeping for 2 seconds..." << endl;
upm_delay(2);
cout << "Rotating 1/2 revolution counter clockwise." << endl;
uln200xa.setDirection(ULN200XA_DIR_CCW);
uln200xa.stepperSteps(2048);
// turn off the power
uln200xa->release();
// turn off the power
uln200xa.release();
//! [Interesting]
cout << "Exiting..." << endl;
//! [Interesting]
cout << "Exiting..." << endl;
delete uln200xa;
return 0;
return 0;
}