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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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23
examples/c++/buzzer.cxx
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@@ -22,37 +22,32 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "buzzer.hpp"
#include "buzzer_tones.h"
#include "upm_utilities.h"
int
main(int argc, char **argv) {
main(int argc, char** argv)
{
//! [Interesting]
int chord[] = { BUZZER_DO, BUZZER_RE, BUZZER_MI,
BUZZER_FA, BUZZER_SOL, BUZZER_LA,
BUZZER_SI };
int chord[] = { BUZZER_DO, BUZZER_RE, BUZZER_MI, BUZZER_FA, BUZZER_SOL, BUZZER_LA, BUZZER_SI };
// create Buzzer instance
upm::Buzzer* sound = new upm::Buzzer(5);
upm::Buzzer sound(5);
// print sensor name
std::cout << sound->name() << std::endl;
std::cout << sound.name() << std::endl;
// play each sound (DO, RE, MI, etc...) for .5 seconds, pausing
// for 0.1 seconds between notes
for (int chord_ind = 0; chord_ind < 7; chord_ind++)
{
std::cout << sound->playSound(chord[chord_ind], 500000) << std::endl;
for (int chord_ind = 0; chord_ind < 7; chord_ind++) {
std::cout << sound.playSound(chord[chord_ind], 500000) << std::endl;
upm_delay_ms(100);
}
//! [Interesting]
std::cout << "exiting application" << std::endl;
delete sound;
return 0;
}