Better to use an OR or an AND when checking for NULLs in C if statements?
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by Crazy Chenz
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Published on 2010-06-17T12:15:57Z
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2010/06/17
12:23 UTC
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Came across a line in OpenSSL that made me do a double take...
if (!*pos)
return NULL;
if (!*pos || ((*pos)->flags == FLAGS))
return blah;
Is there a (performance/security/concurrecy) difference in doing that instead of:
if (!*pos)
return NULL;
if (*pos && ((*pos)->flags == FLAGS))
return blah;
Thanks, Chenz
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