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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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33
examples/c++/speaker-pwm.cxx
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@ -22,34 +22,33 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include "speaker.hpp"
using namespace std;
int main ()
int
main()
{
//! [Interesting]
//! [Interesting]
// Instantiate a Speaker (PWM) pin D3 in PWM mode
upm::Speaker* speaker = new upm::Speaker(3, true);
upm::Speaker speaker(3, true);
// emit a series of frequencies for 500ms each
speaker->emit(50, 500);
speaker->emit(75, 500);
speaker->emit(125, 500);
speaker->emit(250, 500);
speaker->emit(500, 500);
speaker->emit(1000, 500);
speaker->emit(2000, 500);
speaker->emit(3000, 500);
speaker->emit(5000, 500);
speaker->emit(10000, 500);
speaker.emit(50, 500);
speaker.emit(75, 500);
speaker.emit(125, 500);
speaker.emit(250, 500);
speaker.emit(500, 500);
speaker.emit(1000, 500);
speaker.emit(2000, 500);
speaker.emit(3000, 500);
speaker.emit(5000, 500);
speaker.emit(10000, 500);
cout << "Exiting" << endl;
delete speaker;
//! [Interesting]
//! [Interesting]
return 0;
}