@belapsed expression doesn't work on Julia 0.7

[giordano]

On Julia 0.7 @belapsed expression, without keyword arguments, doesn't work:

julia> @belapsed sin(1)
ERROR: ArgumentError: tuple must be non-empty

julia> @belapsed sin(1) evals = 3
1.2999999999999999e-11

No problem with Julia 0.5.

Note that the first one isn't tested in test/ExecutionTests.jl.

BTW, isn't 1.3e-11 a bit too low as elapsed time? On Julia 0.5, same machine (a laptop equipped with an Intel i7 CPU) time is of the order 1.2e-8, which looks more reasonable.

[giordano]

I'm starting to think that @belapsed is a bit broken on Julia 0.7:

julia> @belapsed sleep(0.5) evals = 3
1.2999999999999999e-11

julia> @btime sleep(0.5) evals = 3
  501.583 ms (5 allocations: 192 bytes)

[giordano]

@belapsed was probably broken by JuliaLang/julia#21746. I'm not sure how to fix this in a backward compatible way.

[StefanKarpinski]

I'm not sure how to fix this in a backward compatible way.

The nuclear option is a conditional definition based on VERSION.

[jrevels]

closed by #77