Re: [boost] [chrono] boost::chrono::floor() and negative durations

Le 20/11/13 13:45, Krzysztof Czainski a écrit :

Hello,

The function boost::chrono::floor() is documented: "This function round down the given parameter." Therefore I expect the assert in the following program to pass, but it fails:

#include #include <cassert>

int main() { boost::chrono::nanoseconds const nsec( -1 ); boost::chrono::seconds const sec = boost::chrono::floorboost::chrono::seconds(nsec); assert( sec.count() == -1 ); }

Is this intended behavior? If yes, could the docs be updated to clarify this?

Hi, no, there is a bug with negative numbers. template To floor(const duration& d) { + if (d::zero()) + return duration_cast<To>(d)-To(1); + else return duration_cast<To>(d); } Please, coul dyou create a ticket so that I don't forget it. Thanks, Vicente