Consolidate the non-canonical epoch timers, like cpuid and Win32's

QueryPerformanceCounter, into an entropy source hres_timer. Its
results, if any, do not count as contributing entropy to the poll.

Convert the other (monotonic/fixed epoch) timers to a single function
get_nanoseconds_clock(), living in time.h, which statically chooses
the 'best' timer type (clock_gettime, gettimeofday, std::clock, in
that order depending on what is available). Add feature test macros
for clock_gettime and gettimeofday.

Remove the Timer class and timer.h. Remove the Timer& argument to the
algorithm benchmark function.

1 files changed, 1 insertions, 2 deletions

diff --git a/doc/examples/bench.cpp b/doc/examples/bench.cpp
index cc43fade0..6a15df7c0 100644
--- a/doc/examples/bench.cpp
+++ b/doc/examples/bench.cpp
@@ -64,11 +64,10 @@ void benchmark_algo(const std::string& algo,
                     RandomNumberGenerator& rng)
    {
    u32bit milliseconds = 3000;
-   Default_Benchmark_Timer timer;
    Algorithm_Factory& af = global_state().algorithm_factory();
 
    std::map<std::string, double> speeds =
-      algorithm_benchmark(algo, milliseconds, timer, rng, af);
+      algorithm_benchmark(algo, milliseconds, rng, af);
 
    std::cout << algo << ":";