2009/2/10 Richard F <[email protected]>:
> Call me a newbie, but is there anything wrong with the following statement?
>
> rtc.time_element.tm_wday = (rtc.time_element.tm_wday < 6) ?
> rtc.time_element.tm_wday++ : 0;
"Undefined Behavior"
Try to compile this source with all warnings enabled ( -Wall switch)
Something like
warning: operation on 'rtc.time_element.tm_wday' may be undefined
should appear.
Use pre-increment.
rtc.time_element.tm_wday = (rtc.time_element.tm_wday < 6) ?
++rtc.time_element.tm_wday : 0;
But on my taste
if( ++rtc.time_element.tm_wday >= 6 ) rtc.time_element.tm_wday = 0;
is better solution (generates smaller code)
--
wbr,
ReAl
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