Bugfixes

base/div.jl

@@ -202,8 +202,21 @@ end
 # generic signature also
 div(a::T, b::T, ::typeof(RoundToZero)) where {T<:Union{BitSigned, BitUnsigned64}} = div(a, b)
 div(a::Bool, b::Bool, r::RoundingMode) = div(a, b)
+# Prevent ambiguities
+for rm in (RoundUp, RoundDown, RoundToZero)
+    @eval div(a::Bool, b::Bool, r::$(typeof(rm))) = div(a, b)
+end
+function div(x::Bool, y::Bool, rnd::Union{typeof(RoundNearest),
+                                        typeof(RoundNearestTiesAway),
+                                        typeof(RoundNearestTiesUp)})
+    div(x, y)
+end
 fld(a::T, b::T) where {T<:Union{Integer,AbstractFloat}} = div(a, b, RoundDown)
 cld(a::T, b::T) where {T<:Union{Integer,AbstractFloat}} = div(a, b, RoundUp)
+div(a::Int128, b::Int128, ::typeof(RoundToZero)) = div(a, b)
+div(a::UInt128, b::UInt128, ::typeof(RoundToZero)) = div(a, b)
+rem(a::Int128, b::Int128, ::typeof(RoundToZero)) = rem(a, b)
+rem(a::UInt128, b::UInt128, ::typeof(RoundToZero)) = rem(a, b)
 
 # These are kept for compatibility with external packages overriding fld/cld.
 # In 2.0, packages should extend div(a,b,r) instead, in which case, these can

base/int.jl

@@ -175,6 +175,17 @@ div(x::Unsigned, y::BitSigned) = unsigned(flipsign(signed(div(x, unsigned(abs(y)
 rem(x::BitSigned, y::Unsigned) = flipsign(signed(rem(unsigned(abs(x)), y)), x)
 rem(x::Unsigned, y::BitSigned) = rem(x, unsigned(abs(y)))
 
+function divrem(x::BitSigned, y::Unsigned)
+    q, r = divrem(unsigned(abs(x)), y)
+    flipsign(signed(q), x), flipsign(signed(r), x)
+end
+
+function divrem(x::Unsigned, y::BitSigned)
+    q, r = divrem(x, unsigned(abs(y)))
+    unsigned(flipsign(signed(q), y)), r
+end
+
+
 """
     mod(x, y)
     rem(x, y, RoundDown)