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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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54
examples/c++/sm130.cxx
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@ -22,53 +22,45 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <string>
#include <signal.h>
#include <stdio.h>
#include "sm130.hpp"
using namespace std;
using namespace upm;
int main (int argc, char **argv)
int
main(int argc, char** argv)
{
//! [Interesting]
//! [Interesting]
// Instantiate a UART based SM130 RFID Module using defaults
upm::SM130* sensor = new upm::SM130();
// Instantiate a UART based SM130 RFID Module using defaults
upm::SM130 sensor;
// set the baud rate. 19200 baud is the default.
if (sensor->setBaudRate(19200))
{
cerr << "Failed to set baud rate" << endl;
return 1;
// set the baud rate. 19200 baud is the default.
if (sensor.setBaudRate(19200)) {
cerr << "Failed to set baud rate" << endl;
return 1;
}
cout << "Resetting..." << endl;
sensor->reset();
cout << "Resetting..." << endl;
sensor.reset();
cout << "Firmware revision: " << sensor->getFirmwareVersion() << endl;
cout << "Firmware revision: " << sensor.getFirmwareVersion() << endl;
cout << "Waiting up to 5 seconds for a tag..." << endl;
cout << "Waiting up to 5 seconds for a tag..." << endl;
if (sensor->waitForTag(5000))
{
cout << "Found tag, UID: "
<< sensor->string2HexString(sensor->getUID()) << endl;
cout << "Tag Type: " << sensor->tag2String(sensor->getTagType())
<< endl;
}
else
{
// error
cout << "waitForTag failed: " << sensor->getLastErrorString() << endl;
if (sensor.waitForTag(5000)) {
cout << "Found tag, UID: " << sensor.string2HexString(sensor.getUID()) << endl;
cout << "Tag Type: " << sensor.tag2String(sensor.getTagType()) << endl;
} else {
// error
cout << "waitForTag failed: " << sensor.getLastErrorString() << endl;
}
//! [Interesting]
//! [Interesting]
cout << "Exiting" << endl;
delete sensor;
return 0;
cout << "Exiting" << endl;
return 0;
}