no early termination; keep symengine#225

jverzani · Mar 3, 2025 · 627e5bb · 627e5bb
1 parent 821db78
commit 627e5bb
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diff --git a/src/calculus.jl b/src/calculus.jl
@@ -20,7 +20,6 @@ diff(b1::SymbolicType, b2::BasicType) =
 function diff(b1::SymbolicType, b2::SymbolicType, n::Integer=1)
     n < 0 && throw(DomainError("n must be non-negative integer"))
     n==0 && return b1
-    iszero(b1) && return b1
     n==1 && return diff(b1, BasicType(b2))
     n > 1 && return diff(diff(b1, BasicType(b2)), BasicType(b2), n-1)
 end

diff --git a/test/runtests.jl b/test/runtests.jl
@@ -94,7 +94,6 @@ ex = sin(x*y)
 @test diff(ex, x, 2, y, 3) == diff(ex, x,x,y,y,y)
 @test diff(ex, x, n, y, 3) == diff(ex, x,x,y,y,y)
 @test diff(ex, x, 2, y, x) == diff(ex, x,x,x,y)
-(@allocated diff(x^10, x,12)) , (@allocated diff(x^10, x, 120))
 @test series(sin(x), x, 0, 2) == x
 @test series(sin(x), x, 0, 3) == x - x^3/6