Ceiling fix (#432)

* fix ceil

* version bump

Project.toml

@@ -1,6 +1,6 @@
 name = "SymPy"
 uuid = "24249f21-da20-56a4-8eb1-6a02cf4ae2e6"
-version = "1.0.48"
+version = "1.0.49"
 
 
 [deps]

src/mathfuns.jl

@@ -8,7 +8,7 @@ Base.min(x::Sym, a) = sympy.Min(x, a)
 
 
 Base.cbrt(x::Sym) = x^(1//3)
-Base.ceil(x::Sym) = ceiling(x)
+Base.ceil(x::Sym) = sympy.ceiling(x)
 
 ## Trig
 Base.asech(z::Sym) = log(sqrt(1/z-1)*sqrt(1/z+1) + 1/z)
@@ -101,7 +101,7 @@ Base.:~(lhs::SymbolicObject, rhs::SymbolicObject) = Eq(lhs, rhs)
 """
     solve
 
-Use `solve` to solve algebraic equations. 
+Use `solve` to solve algebraic equations.
 
 Examples:
 
@@ -172,7 +172,7 @@ julia> eqn = y'(x) - y(x);
 julia> dsolve(eqn, y(x), ics=(y,0,1)) |> string # technical to avoid  parsing issue with doctesting
 "Eq(y(x), exp(x))"
 
-julia> eqn = y''(x) - y(x) - exp(x); 
+julia> eqn = y''(x) - y(x) - exp(x);
 
 julia> dsolve(eqn, y(x), ics=((y,0,1), (y, 1, 1//2))) |> string
 "Eq(y(x), (x/2 + (-exp(2) - 2 + E)/(-2 + 2*exp(2)))*exp(x) + (-E + 3*exp(2))*exp(-x)/(-2 + 2*exp(2)))"

test/tests.jl

@@ -501,20 +501,20 @@ end
 @testset "Syms macro" begin
     @syms u
     @test isa(u, Sym)
-    
+
     ret = @syms a, b, c
     @test isa(ret, Tuple{Sym, Sym, Sym})
 
     @syms x::(real,positive)=>"x₀", y, z::complex, n::integer
     @test isa(x, Sym)
     @test ask(And(𝑄.real(x), 𝑄.positive(x)))
     @test string(x) == "x₀"
-    
+
     @test isa(y, Sym)
 
     @test isa(z, Sym)
     @test ask(𝑄.complex(z))
-    
+
     @test isa(n, Sym)
     @test ask(𝑄.integer(n))
 
@@ -801,5 +801,8 @@ end
     A = sympy.MatrixSymbol("A", n, n)
     @test inv(A) == A.I
 
-
+    # ceil broken
+    @syms x
+    @test limit(ceil(x), x=>0, dir="+") != limit(ceil(x), x=>0, dir="-")
+    @test limit(floor(x), x=>0, dir="+") != limit(floor(x), x=>0, dir="-")
 end