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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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70
examples/c++/otp538u.cxx
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@ -22,61 +22,59 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <iomanip>
#include <stdexcept>
#include <iostream>
#include <signal.h>
#include <stdexcept>
#include <string>
#include "otp538u.hpp"
#include "upm_utilities.h"
using namespace std;
bool shouldRun = true;
// analog voltage, usually 3.3 or 5.0
#define OTP538U_AREF 5.0
#define OTP538U_AREF 5.0
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 OTP538U on analog pins A0 and A1
// A0 is used for the Ambient Temperature and A1 is used for the
// Object temperature.
upm::OTP538U *temps = new upm::OTP538U(0, 1, OTP538U_AREF);
// enable debugging if you would like
// temps->setDebug(true);
// Instantiate a OTP538U on analog pins A0 and A1
// A0 is used for the Ambient Temperature and A1 is used for the
// Object temperature.
upm::OTP538U temps(0, 1, OTP538U_AREF);
// Output ambient and object temperatures
while (shouldRun)
{
try {
cout << "Ambient temp: " << std::fixed << setprecision(2)
<< temps->ambientTemperature()
<< " C, Object temp: " << temps->objectTemperature()
<< " C" << endl;
}
catch (std::out_of_range& e) {
cerr << "Temperature(s) are out of range: " << e.what()
<< endl;
}
// enable debugging if you would like
// temps.setDebug(true);
cout << endl;
sleep(1);
// Output ambient and object temperatures
while (shouldRun) {
try {
cout << "Ambient temp: " << std::fixed << setprecision(2) << temps.ambientTemperature()
<< " C, Object temp: " << temps.objectTemperature() << " C" << endl;
} catch (std::out_of_range& e) {
cerr << "Temperature(s) are out of range: " << e.what() << endl;
}
cout << endl;
upm_delay(1);
}
//! [Interesting]
//! [Interesting]
cout << "Exiting" << endl;
cout << "Exiting" << endl;
delete temps;
return 0;
return 0;
}