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WHAT'S YOUR ENGINEERING QUOTIENT?

Problem 1—CPP, the C preprocessor, does many important things; among them are bringing in #include'd files, expanding #define'd macros, and deleting conditionally-compiled code (#if and #ifdef).

Sometimes, CPP is used for software other than C. When processing assembly language, it is often necessary to have local labels within macros (a local label is different for each expansion of that macro). Can this be done with CPP?

ANSWER

Problem 2—The precession of Foucault's pendulum demonstrates what fact about the Earth?

1. That the Earth moves through space.
2. The precession of the Earth's axis of rotation.
3. That the Earth rotates.

2-01