Saturday, 7 September 2013

volatile variable using in making application

volatile variable using in making application

I am new in this field. Previously I was doing microcontroller programming
where I used volatile variables to avoid compiler optimization. But I
never saw such volatile declaration before variable declaration. Does it
mean compilation is done without any optimization in Arago build. Here I
have two questions.
How can I enable different types of optimization during compilation like
speed and space optimization in Angstrom build?
If it is already an optimized compilation, why do we not need volatile
declarations?

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