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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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60
examples/c++/lis2ds12.cxx
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@@ -22,60 +22,56 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "lis2ds12.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 argc, char **argv)
int
main(int argc, char** argv)
{
signal(SIGINT, sig_handler);
//! [Interesting]
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate an LIS2DS12 using default I2C parameters
upm::LIS2DS12 sensor;
// Instantiate an LIS2DS12 using default I2C parameters
upm::LIS2DS12 sensor;
// For SPI, bus 0, you would pass -1 as the address, and a valid pin
// for CS: LIS2DS12(0, -1, 10);
// For SPI, bus 0, you would pass -1 as the address, and a valid pin
// for CS: LIS2DS12(0, -1, 10);
// now output data every 250 milliseconds
while (shouldRun)
{
float x, y, z;
// now output data every 250 milliseconds
while (shouldRun) {
float x, y, z;
sensor.update();
sensor.update();
sensor.getAccelerometer(&x, &y, &z);
cout << "Accelerometer x: " << x
<< " y: " << y
<< " z: " << z
<< " g"
<< endl;
sensor.getAccelerometer(&x, &y, &z);
cout << "Accelerometer x: " << x << " y: " << y << " z: " << z << " g" << endl;
// we show both C and F for temperature
cout << "Compensation Temperature: " << sensor.getTemperature()
<< " C / " << sensor.getTemperature(true) << " F"
<< endl;
// we show both C and F for temperature
cout << "Compensation Temperature: " << sensor.getTemperature() << " C / "
<< sensor.getTemperature(true) << " F" << endl;
cout << endl;
cout << endl;
usleep(250000);
upm_delay_us(250000);
}
//! [Interesting]
//! [Interesting]
cout << "Exiting..." << endl;
cout << "Exiting..." << endl;
return 0;
return 0;
}