diff --git a/src/flex/flex.cxx b/src/flex/flex.cxx index fcf763a5..4e63362e 100644 --- a/src/flex/flex.cxx +++ b/src/flex/flex.cxx @@ -23,6 +23,8 @@ */ #include +#include +#include #include "flex.h" @@ -33,7 +35,8 @@ Flex::Flex(int pin) { if ( !(m_aio = mraa_aio_init(pin)) ) { - cerr << __FUNCTION__ << ": mraa_aio_init() failed" << endl; + throw std::invalid_argument(std::string(__FUNCTION__) + + ": mraa_aio_init() failed, invalid pin?"); return; } }