2 different versions of the bare minimum code required to blink an LED on pin 13 (aka J17-14) using an Intel Edison and C++.

blinkTest.cpp

#include "mraa.hpp"

int main()
{
	// set GPIO digital pin "13" to be an output
	mraa_gpio_context d_pin = mraa_gpio_init_raw(128);
	mraa_gpio_dir(d_pin, MRAA_GPIO_OUT_HIGH);

	// loop forever toggling the on board LED every second
	for (;;) {
		mraa_gpio_write(d_pin, 1);
		sleep(1);
		mraa_gpio_write(d_pin, 0);
		sleep(1);
	}

	return MRAA_SUCCESS;
}

blinkTestGPIO.cpp

#include "mraa.hpp"

int main()
{
	// set GPIO digital pin "13" to be an output
	mraa::Gpio* d_pin = NULL;
	d_pin = new mraa::Gpio(13, true, false);
	d_pin->dir(mraa::DIR_OUT);

	// loop forever toggling the on board LED every second
	for (;;) {
		d_pin->write(1);
		sleep(1);
		d_pin->write(0);
		sleep(1);
	}

	return MRAA_SUCCESS;
}