Register Storage Class

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Does anyone still use the register storage class or just rely on the compiler to optimize? Also, is there a way to identify which variables the compiler has put into the register?

Thanks,
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[jsmith]

No and no, not without looking at the assembly code generated by the compiler.
(although sometimes the debugger will tell you, for example if you try to take the address of a variable in the debugger that the compiler has put in a register you will get an error).