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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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52
examples/c++/grove-groveled-multi.cxx
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@ -22,47 +22,47 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "grove.hpp"
#include "groveled.hpp"
#include "upm_utilities.h"
using namespace std;
int shouldRun = true;
void sig_handler(int signo)
void
sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
if (signo == SIGINT)
shouldRun = false;
}
int main()
int
main()
{
signal(SIGINT, sig_handler);
signal(SIGINT, sig_handler);
//! [Interesting]
//! [Interesting]
// Instantiate a grove LED on D2. Here we are controlling a Grove
// Multi-color flash LED. We just just need to turn it on - it will
// then cycle through various colors (red, green, blue, purple) on it's
// own until turned off.
upm::GroveLed* led = new upm::GroveLed(2);
// Instantiate a grove LED on D2. Here we are controlling a Grove
// Multi-color flash LED. We just just need to turn it on - it will
// then cycle through various colors (red, green, blue, purple) on it's
// own until turned off.
upm::GroveLed led(2);
// start the light show
led->on();
// start the light show
led.on();
// just sleep until interrupted
while (shouldRun)
sleep(1);
//! [Interesting]
// just upm_delay until interrupted
while (shouldRun)
upm_delay(1);
led->off();
cout << "Exiting..." << endl;
//! [Interesting]
delete led;
return 0;
led.off();
cout << "Exiting..." << endl;
return 0;
}