Copying 32 bits into 16 bit integer???

accelProps.xAxis is a 32 bit integer reading from an accelerometer...

Int16U xVal = accelProps.xAxis;

Will the above copy the first 16 bits of the 32 bit integer into the 16 bit integer?

If by 'first', you mean 'least significant', then yes.

Thanks!!

Isn't this implementation defined, however? Truncation?

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Originally Posted by Elysia

Isn't this implementation defined, however? Truncation?

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Don't have my copy of the standard with me, but I'm fairly certain that it specifies modular arithmetic for a down-conversion like this (which is the same as throwing away the most significant bits).