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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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40
examples/c++/mpl3115a2.cxx
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@ -22,16 +22,15 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include <stdio.h>
#include "mpl3115a2.hpp"
#include "upm_utilities.h"
volatile int doWork = 0;
upm::MPL3115A2 *sensor = NULL;
void
sig_handler(int signo)
{
@ -42,42 +41,35 @@ sig_handler(int signo)
}
int
main(int argc, char **argv)
main(int argc, char** argv)
{
// Register signal handler
signal(SIGINT, sig_handler);
//! [Interesting]
float pressure = 0.0;
float pressure = 0.0;
float temperature = 0.0;
float altitude = 0.0;
float sealevel = 0.0;
float altitude = 0.0;
float sealevel = 0.0;
sensor = new upm::MPL3115A2(0, MPL3115A2_I2C_ADDRESS);
upm::MPL3115A2 sensor(0, MPL3115A2_I2C_ADDRESS);
sensor->testSensor();
sensor.testSensor();
while (!doWork) {
temperature = sensor->getTemperature(true);
pressure = sensor->getPressure(false);
altitude = sensor->getAltitude();
sealevel = sensor->getSealevelPressure();
temperature = sensor.getTemperature(true);
pressure = sensor.getPressure(false);
altitude = sensor.getAltitude();
sealevel = sensor.getSealevelPressure();
std::cout << "pressure value = " <<
pressure <<
", altitude value = " <<
altitude <<
", sealevel value = " <<
sealevel <<
", temperature = " <<
temperature << std::endl;
usleep (500000);
std::cout << "pressure value = " << pressure << ", altitude value = " << altitude
<< ", sealevel value = " << sealevel << ", temperature = " << temperature
<< std::endl;
upm_delay_us(500000);
}
//! [Interesting]
std::cout << "exiting application" << std::endl;
delete sensor;
return 0;
}