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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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29
examples/c++/jhd1313m1-lcd.cxx
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@ -23,6 +23,8 @@
*/
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <string>
#include "jhd1313m1.hpp"
@ -30,14 +32,15 @@
int shouldRun = true;
void sig_handler(int signo)
void
sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int
main(int argc, char **argv)
main(int argc, char** argv)
{
signal(SIGINT, sig_handler);
@ -46,22 +49,16 @@ main(int argc, char **argv)
upm::Jhd1313m1 lcd(0, 0x3E, 0x62);
int ndx = 0;
uint8_t rgb[7][3] = {
{0xd1, 0x00, 0x00},
{0xff, 0x66, 0x22},
{0xff, 0xda, 0x21},
{0x33, 0xdd, 0x00},
{0x11, 0x33, 0xcc},
{0x22, 0x00, 0x66},
{0x33, 0x00, 0x44}};
while (shouldRun)
{
uint8_t rgb[7][3] = { { 0xd1, 0x00, 0x00 }, { 0xff, 0x66, 0x22 }, { 0xff, 0xda, 0x21 },
{ 0x33, 0xdd, 0x00 }, { 0x11, 0x33, 0xcc }, { 0x22, 0x00, 0x66 },
{ 0x33, 0x00, 0x44 } };
while (shouldRun) {
// Alternate rows on the LCD
lcd.setCursor(ndx%2,0);
lcd.setCursor(ndx % 2, 0);
// Change the color
uint8_t r = rgb[ndx%7][0];
uint8_t g = rgb[ndx%7][1];
uint8_t b = rgb[ndx%7][2];
uint8_t r = rgb[ndx % 7][0];
uint8_t g = rgb[ndx % 7][1];
uint8_t b = rgb[ndx % 7][2];
lcd.setColor(r, g, b);
lcd.write("Hello World " + std::to_string(ndx));
// Echo via printf