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\$\begingroup\$ The int i=*(int*)0; returns a NullReferenceException for me. \$\endgroup\$

Peter Olson
– Peter Olson

2011-12-30 07:43:09 +00:00
Commented Dec 30, 2011 at 7:43
\$\begingroup\$ You can try to access a negative location, like *(int*)-1=0 and get an access violation. \$\endgroup\$

Peter Olson
– Peter Olson

2011-12-30 07:46:59 +00:00
Commented Dec 30, 2011 at 7:46
\$\begingroup\$ The particular exception is just what the clr wraps it in, and is insignificant. The os itself actually gives the seg fault in all these cases. \$\endgroup\$

captncraig
– captncraig

2012-01-20 17:41:06 +00:00
Commented Jan 20, 2012 at 17:41
\$\begingroup\$ The reason why *(int*)0=0 throws an exception is likely due to optimization. Specifically, to avoid the cost of checking for null, the optimizer may remove null checks, but when a segfault occurs it may rethrow it as a proper NullReferenceException. \$\endgroup\$

null
– null

2018-09-15 20:55:43 +00:00
Commented Sep 15, 2018 at 20:55

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