This document defines the coverage for the clock() function.

Assertion	Covered?
1		YES
2		YES
3		WON'T
4		YES
5		WON'T

ERRORS
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1 is failing on test implementation.  It appears clock() is always returning 0.

WON'T TEST
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3 - Will not test the error values of clock() because it is unknown how to
    cause these errors to happen.
5 - Cannot test that clock() can wrap because it is unknown which
    implementations it will wrap in.