Hansi wrote:
Hi,
I have made today a few tests to compare the different possibilities to search min,max of a value. I had some really strange results which I don't have expected. As environment I use VS2008 Express edition,not managed, defines are SECURE_SCL=0 and NDEBUG=1.
In the comparsion I got the following timings:
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< min_element,max_element:73 minVal=0,maxVal=9999999 min_max: accumulator:2338 minVal=0,maxVal=9999999 min_max: minmax_element:86 minVal=0,maxVal=9999999 min/max handcoded:135 minVal=0,maxVal=9999999 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
For me the strange things are: - that std::min_element and std::max_element is faster as boost::minmax_element ...
Why does this surprise you? std::min() (or std::max) should be faster that boost::minmax(). boost::minmax() should be faster than subsequent invocation of std::min() and then std::max(). BR, Dmitry