time_measure.h uses obsolete headears

[Alpar Juttner]

time_measure.h includes obsolete (pre C++) headers, such as unistd.h, sys/times.h and sys/time.h which in turn define a couple of things in the global namespace. Using the C++ counterparts of these headers (I hope they exist) would be a better option.

[Balazs Dezso]

I don't think that there would be c++ counterparts of these functions (ctime supports only a fraction of the functionality what we need).

I think we should move the implementation of time_measure tools to a source file (.cc), so we could avoid to pollute the global namespace.

[Alpar Juttner]

I think we should move the implementation of time_measure tools to a source file (.cc), so we could avoid to pollute the global namespace.

Ok, but then

• TimeStamp::stamp() will not be an inline function. Can we neglect the running time overhead?
• lemon/time_measure.h will not be a header only tool

[Alpar Juttner]

Let us leave it as is for the time being. I didn't caused much problem so far, so it's probably safe to leave the bullet-proof solution for the future.