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Message: [QUOTE="pete, post: 2471992"] Not really. The only difference is that the name of a function converts to a constant address in a function call, whereas a pointer expression may be either a constant or a variable. In case where there is a difference in speed, I would expect a constant to be faster than a variable. (putchar)('A'); should compile the same as (&putchar)('A'); The only times that a function name doesn't convert implicitly to a pointer to the function, is as an operand to the address operator &, and as an operand of the sizeof operator, which is why (sizeof function_name) is undefined. So, it's not a matter of differences in indirection. [/QUOTE]