add missing u2i function (thanks @TheCedarPrince)

JuliaBerry · Dec 23, 2024 · 8c2cbf1 · 8c2cbf1
1 parent ea8de28
commit 8c2cbf1
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diff --git a/src/pi.jl b/src/pi.jl
@@ -64,6 +64,7 @@ function tickDiff(t1, t2)
    return tDiff
 end
 
+u2i(x::UInt32) = signed(x)
 
 """
 Converts a 32 bit unsigned number to signed.  If the number
@@ -81,6 +82,7 @@ function _u2i(x::UInt32)
 end
 
 
+
 struct InMsg
     cmd::Cuint # a bits type
     p1::Cuint # an array of bits types

diff --git a/test/runtests.jl b/test/runtests.jl
@@ -1,6 +1,15 @@
 using PiGPIO
 using Test
 
+using PiGPIO: u2i
+
+
+@testset "utility functions" begin
+    # https://github.com/joan2937/pigpio/blob/c33738a320a3e28824af7807edafda440952c05d/pigpio.py#L989
+
+    @test u2i(UInt32(4294967272)) == -24
+    @test u2i(UInt32(37)) == 37
+end
 
 @testset "aqua checks" begin
     include("test_aqua.jl")