examples: Remove heap allocation from C++ examples

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

View File

@ -22,29 +22,31 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <iomanip>
#include "grove.hpp"
#include <stdint.h>
#include <stdio.h>
#include <string>
#include "groveslide.hpp"
#include "upm_utilities.h"
using namespace std;
int main ()
int
main()
{
//! [Interesting]
upm::GroveSlide* slide = new upm::GroveSlide(0); // Instantiate new grove slide potentiometer on analog pin A0
//! [Interesting]
upm::GroveSlide slide(0);
cout << slide->name() << endl;
cout << slide.name() << endl;
while(true) {
float adc_value = slide->raw_value(); // Read raw value
float volts = slide->voltage_value(); // Read voltage, board reference set at 5.0V
fprintf(stdout, "%4d = %.2f V\n", (uint16_t)adc_value, volts);
while (true) {
float adc_value = slide.raw_value(); // Read raw value
float volts = slide.voltage_value(); // Read voltage, board reference set at 5.0V
fprintf(stdout, "%4d = %.2f V\n", (uint16_t) adc_value, volts);
usleep(2500000); // Sleep for 2.5s
upm_delay_us(2500000); // Sleep for 2.5s
}
//! [Interesting]
delete slide;
//! [Interesting]
return 0;
}