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allan-takuya / cpptweener

Automatically exported from code.google.com/p/cpptweener
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UB in easeInOut #4

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. download source
2. open the file "CppTweener.cpp"
3. scroll to row 88

the statement "return -c/2 * (((t-2)*(--t)) - 1) + b;"

is undefined behavior due to using --t and t-2 in the same expression, where 
its not guaranteed to happen in left-to-right order.

Original issue reported on code.google.com by kristoff...@23c.se on 9 Aug 2012 at 9:05