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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++/nunchuck.cxx
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@ -22,50 +22,46 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "nunchuck.hpp"
#include "upm_utilities.h"
using namespace std;
bool 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 argc, char **argv)
int
main(int argc, char** argv)
{
signal(SIGINT, sig_handler);
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a nunchuck controller bus 3
upm::NUNCHUCK *nunchuck = new upm::NUNCHUCK(3);
//! [Interesting]
// Instantiate a nunchuck controller bus 3
upm::NUNCHUCK nunchuck(3);
while (shouldRun)
{
nunchuck->update();
while (shouldRun) {
nunchuck.update();
cout << "stickX: " << nunchuck->stickX
<< ", stickY: " << nunchuck->stickY << endl;
cout << "accelX: " << nunchuck->accelX
<< ", accelY: " << nunchuck->accelY
<< ", accelZ: " << nunchuck->accelZ << endl;
cout << "stickX: " << nunchuck.stickX << ", stickY: " << nunchuck.stickY << endl;
cout << "accelX: " << nunchuck.accelX << ", accelY: " << nunchuck.accelY
<< ", accelZ: " << nunchuck.accelZ << endl;
cout << "button C: "
<< ((nunchuck->buttonC) ? "pressed" : "not pressed") << endl;
cout << "button Z: "
<< ((nunchuck->buttonZ) ? "pressed" : "not pressed") << endl;
cout << endl;
cout << "button C: " << ((nunchuck.buttonC) ? "pressed" : "not pressed") << endl;
cout << "button Z: " << ((nunchuck.buttonZ) ? "pressed" : "not pressed") << endl;
cout << endl;
usleep(100000);
upm_delay_us(100000);
}
//! [Interesting]
//! [Interesting]
delete nunchuck;
return 0;
return 0;
}