What's a C expert?

[Andrew Koenig]

In article <338 at mead.UUCP>, dem at mead.UUCP (Dave Myers) writes:
-> 
-> In article <1336 at atanasoff.cs.iastate.edu> hascall at atanasoff.cs.iastate.edu.UUCP (John Hascall) writes:
-> >In article <6057> paulc at microsoft.UUCP (Paul Canniff 2/1011) writes:
-> >}In article <12214 at well.UUCP> tmh at well.UUCP (Todd M. Hoff) writes:
-> > 
-> >}>           What do you need to know to be an expert C programmer?
-> > 
-> >}How about ... understands why a[i] equals i[a] and CAN EXPLAIN IT,
-> >
-> >    a[i] = *(a+i), i[a] = *(i+a), a+i = i+a
-> >
-> 
-> 
->    Hmmm....  I don't claim to be a C expert, but let's take a trivial
-> case.

-> 	a[i] == *(a + (i * sizeof(int) * BIGNUMBER))
-> 	i[a] == *(i + (a * sizeof(int)))
-> 
->    Clearly, these are not equal.

You're right, you're not a C expert.  a[i] and i[a] truly are
identical.  I'll leave it to you to figure out which of your
two `equivalences' aren't.
-- 
				--Andrew Koenig
				  ark at europa.att.com