import isneg

JuliaLang · Nov 21, 2020 · 8dac842 · 8dac842
1 parent 2a9b9da
commit 8dac842
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/base/gmp.jl b/base/gmp.jl
@@ -841,7 +841,7 @@ module MPQ
 
 # Rational{BigInt}
 import .Base: unsafe_rational, __throw_rational_argerror_zero
-import ..GMP: BigInt, MPZ, Limb
+import ..GMP: BigInt, MPZ, Limb, isneg
 
 mutable struct _MPQ
  num_alloc::Cint
@@ -885,7 +885,7 @@ end
 
 function Base.:+(x::Rational{BigInt}, y::Rational{BigInt})
  if iszero(x.den) || iszero(y.den)
- if iszero(x.den) && iszero(y.den) && signbit(x.num) != signbit(y.num)
+ if iszero(x.den) && iszero(y.den) && isneg(x.num) != isneg(y.num)
  throw(DivideError())
  end
  return iszero(x.den) ? x : y
@@ -897,7 +897,7 @@ function Base.:+(x::Rational{BigInt}, y::Rational{BigInt})
 end
 function Base.:-(x::Rational{BigInt}, y::Rational{BigInt})
  if iszero(x.den) || iszero(y.den)
- if iszero(x.den) && iszero(y.den) && signbit(x.num) == signbit(y.num)
+ if iszero(x.den) && iszero(y.den) && isneg(x.num) == isneg(y.num)
  throw(DivideError())
  end
  return iszero(x.den) ? x : -y
@@ -912,7 +912,7 @@ function Base.:*(x::Rational{BigInt}, y::Rational{BigInt})
  if iszero(x.num) || iszero(y.num)
  throw(DivideError())
  end
- return xor(signbit(x.num),signbit(y.num)) ? -one(BigInt)//zero(BigInt) : one(BigInt)//zero(BigInt)
+ return xor(isneg(x.num),isneg(y.num)) ? -one(BigInt)//zero(BigInt) : one(BigInt)//zero(BigInt)
  end
  zq = _MPQ()
  ccall((:__gmpq_mul, :libgmp), Cvoid,