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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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33
examples/c++/htu21d.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 "htu21d.hpp"
#include "upm_utilities.h"
volatile int doWork = 0;
upm::HTU21D *sensor = NULL;
void
sig_handler(int signo)
{
@@ -42,38 +41,32 @@ sig_handler(int signo)
}
int
main(int argc, char **argv)
main(int argc, char** argv)
{
// Register signal handler
signal(SIGINT, sig_handler);
//! [Interesting]
float humidity = 0.0;
float humidity = 0.0;
float temperature = 0.0;
float compRH = 0.0;
float compRH = 0.0;
sensor = new upm::HTU21D(0, HTU21D_I2C_ADDRESS);
upm::HTU21D sensor(0, HTU21D_I2C_ADDRESS);
sensor->testSensor();
sensor.testSensor();
while (!doWork) {
compRH = sensor->getCompRH(true);
humidity = sensor->getHumidity(false);
temperature = sensor->getTemperature(false);
compRH = sensor.getCompRH(true);
humidity = sensor.getHumidity(false);
temperature = sensor.getTemperature(false);
std::cout << "humidity value = " <<
humidity <<
", temperature value = " <<
temperature <<
", compensated RH value = " <<
compRH << std::endl;
usleep (500000);
std::cout << "humidity value = " << humidity << ", temperature value = " << temperature
<< ", compensated RH value = " << compRH << std::endl;
upm_delay_us(500000);
}
//! [Interesting]
std::cout << "exiting application" << std::endl;
delete sensor;
return 0;
}