[vox] The real problem with Toyota acceleration!

[Brian Lavender]

I couldn't help entertaining myself with the following. What if Toyota
was using an 8-bit micro controller, and they were using a signed value
to track the position of the accelerator? You press more and it adds to
a vector. The problem strangely started occuring when Toyota started
taking out the throttle cable on their vehicles. I own two Toyotas. One
with a throttle cable, the other without (uses a sensor to detect
throttle position).

Question is?

What is 127 + 1

Answer

-128

Ha! Ha! Maybe not so funny for the guy driving the car.

Sorry, I just had to share. ;-)

If only they had used SPARK/ADA!
http://libre.adacore.com/libre/tools/spark-gpl-edition/


#include <stdio.h>
int main() {
    char foo;

    foo = 127;
    printf("The value is %d\n", (char)(foo + 1) );
}

brian
--
Brian Lavender
http://www.brie.com/brian/

"There are two ways of constructing a software design. One way is to
make it so simple that there are obviously no deficiencies. And the other
way is to make it so complicated that there are no obvious deficiencies."

Professor C. A. R. Hoare
The 1980 Turing award lecture