From b7dda9021fe58a8901e3d5c3febcd9eaa827fc88 Mon Sep 17 00:00:00 2001 From: Jon Trulson Date: Wed, 9 Sep 2015 16:45:45 -0600 Subject: [PATCH] grovecollision: throw exception(s) on fatal errors Signed-off-by: Jon Trulson Signed-off-by: Mihai Tudor Panu --- src/grovecollision/grovecollision.cxx | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/src/grovecollision/grovecollision.cxx b/src/grovecollision/grovecollision.cxx index ccc1fd4f..fd8aa9bd 100644 --- a/src/grovecollision/grovecollision.cxx +++ b/src/grovecollision/grovecollision.cxx @@ -22,13 +22,22 @@ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +#include +#include + #include "grovecollision.h" using namespace upm; GroveCollision::GroveCollision(int pin) { - m_gpio = mraa_gpio_init(pin); + + if ( !(m_gpio = mraa_gpio_init(pin)) ) + { + throw std::invalid_argument(std::string(__FUNCTION__) + + ": mraa_gpio_init() failed, invalid pin?"); + return; + } mraa_gpio_dir(m_gpio, MRAA_GPIO_IN); }