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otp538u: throw exception(s) on fatal errors.

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In addition, throw out_of_range() exceptions in
object/ambientTemperature() methods when they occur instead of just
returning 0, which is a valid temperature return value.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Jon Trulson 2015-09-08 13:08:05 -06:00 committed by Mihai Tudor Panu
parent a2855c5e72
commit b4e4e9ae89
1 changed files with 13 additions and 6 deletions
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19
src/otp538u/otp538u.cxx
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@ -23,6 +23,8 @@
*/ */
#include <iostream> #include <iostream>
#include <string>
#include <stdexcept>
#include "otp538u.h" #include "otp538u.h"
@ -55,7 +57,8 @@ OTP538U::OTP538U(int pinA, int pinO, float aref)
if ( !(m_aioA = mraa_aio_init(pinA)) ) if ( !(m_aioA = mraa_aio_init(pinA)) )
{ {
cerr << __FUNCTION__ << ": mraa_aio_init() failed" << endl; throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init(pinA) failed, invalid pin?");
return; return;
} }
@ -64,7 +67,8 @@ OTP538U::OTP538U(int pinA, int pinO, float aref)
if ( !(m_aioO = mraa_aio_init(pinO)) ) if ( !(m_aioO = mraa_aio_init(pinO)) )
{ {
cerr << __FUNCTION__ << ": mraa_aio_init() failed" << endl; throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init(pinO) failed, invalid pin?");
return; return;
} }
@ -109,8 +113,9 @@ float OTP538U::ambientTemperature()
} }
if (j >= otp538u_rt_table_max) if (j >= otp538u_rt_table_max)
{ {
cerr << __FUNCTION__ << ": ambient temperature out of range." << endl; throw std::out_of_range(std::string(__FUNCTION__) +
": ambient temperature out of range.");
return 0; return 0;
} }
@ -123,7 +128,8 @@ float OTP538U::ambientTemperature()
// too cold // too cold
if (slot < 0) if (slot < 0)
{ {
cerr << __FUNCTION__ << ": ambient temperature out of range." << endl; throw std::out_of_range(std::string(__FUNCTION__) +
": ambient temperature out of range.");
return 0; return 0;
} }
@ -174,7 +180,8 @@ float OTP538U::objectTemperature()
if (slot >= (otp538u_vt_table_max - 1)) if (slot >= (otp538u_vt_table_max - 1))
{ {
cerr << __FUNCTION__ << ": object temperature out of range." << endl; throw std::out_of_range(std::string(__FUNCTION__) +
": object temperature out of range.");
return 0; return 0;
} }