searchsorted corner case

[jw3126]

Today I hit the following corner case of searchsorted and friends:

julia> searchsorted(1:2.0, -Inf) # works
1:0

julia> searchsorted([1,2], -Inf) # works
1:0

julia> searchsorted(1:2, -Inf) # throws
ERROR: InexactError: trunc(Int64, Inf)

[inkydragon]

julia/base/sort.jl

Lines 254 to 261 in 3af96bc

	function searchsortedfirst(a::AbstractRange{<:Integer}, x::Real, o::DirectOrdering)
	has_offset_axes(a) && throw(ArgumentError("range must be indexed starting with 1"))
	if step(a) == 0
	lt(o, first(a), x) ? length(a)+1 : 1
	else
	clamp(-fld(floor(Integer, -x) + first(a), step(a)) + 1, 1, length(a) + 1)
	end
	end

julia> searchsortedfirst(1:2, Inf, ord(isless,identity,nothing,Forward))
ERROR: InexactError: trunc(Int64, -Inf)
Stacktrace:
 [1] trunc at .\float.jl:696 [inlined]
 [2] trunc at .\float.jl:351 [inlined]
 [3] floor at .\float.jl:355 [inlined]
 [4] searchsortedfirst(::UnitRange{Int64}, ::Float64, ::ForwardOrdering) at .\sort.jl:259
 [5] top-level scope at none:0

julia> floor(Integer, Inf)
ERROR: InexactError: trunc(Int64, Inf)
Stacktrace:
 [1] trunc at .\float.jl:696 [inlined]
 [2] trunc at .\float.jl:351 [inlined]
 [3] floor(::Type{Integer}, ::Float64) at .\float.jl:355
 [4] top-level scope at none:0

julia> versioninfo()
Julia Version 1.0.5
Commit 3af96bcefc (2019-09-09 19:06 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-6.0.0 (ORCJIT, broadwell)