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examples: Remove heap allocation from C++ examples

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Small cleanup of MRAA C++ examples.  Switched from heap allocation to
stack allocation when possible.  This simplifies the samples since it
removes the need for explicit memory management.

Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Noel Eck
2017-08-08 13:55:23 -07:00
parent d50b646c35
commit 1217c5c034
7 changed files with 29 additions and 47 deletions
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9
examples/c++/Spi-pot.cpp
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@@ -45,9 +45,7 @@ main()
signal(SIGINT, sig_handler);
//! [Interesting]
mraa::Spi* spi;
spi = new mraa::Spi(0);
mraa::Spi spi(0);
uint8_t data[] = { 0x00, 100 };
uint8_t rxBuf[2];
@@ -56,7 +54,7 @@ main()
int i;
for (i = 90; i < 130; i++) {
data[1] = i;
recv = spi->write(data, 2);
recv = spi.write(data, 2);
printf("Writing -%i", i);
if (recv) {
printf("RECIVED-%i-%i\n", recv[0], recv[1]);
@@ -66,14 +64,13 @@ main()
}
for (i = 130; i > 90; i--) {
data[1] = i;
if (spi->transfer(data, rxBuf, 2) == mraa::SUCCESS) {
if (spi.transfer(data, rxBuf, 2) == mraa::SUCCESS) {
printf("Writing -%i", i);
printf("RECIVED-%i-%i\n", rxBuf[0], rxBuf[1]);
}
usleep(100000);
}
}
delete spi;
//! [Interesting]
return mraa::SUCCESS;