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[Space Lua] Guarantee that math.modf returns integer and tagged float

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Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
This commit is contained in:
Matouš Jan Fialka
2026-02-20 09:36:10 +01:00
parent 77d37090ca
commit f93a306a66
2 changed files with 13 additions and 2 deletions
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client/space_lua/stdlib/math_test.lua
+10
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@@ -81,12 +81,22 @@ end
-- modf
do
local i, f = math.modf(3.5)
assertEquals(math.type(i), "integer", "modf int part is integer")
assertEquals(math.type(f), "float", "modf frac part is float")
assertEquals(i, 3, "modf(3.5) int")
assertClose(f, 0.5, 1e-12, "modf(3.5) frac")
local i2, f2 = math.modf(-3.5)
assertEquals(math.type(i2), "integer", "modf neg int part is integer")
assertEquals(math.type(f2), "float", "modf neg frac part is float")
assertEquals(i2, -3, "modf(-3.5) int")
assertClose(f2, -0.5, 1e-12, "modf(-3.5) frac")
local i3, f3 = math.modf(4.0)
assertEquals(math.type(i3), "integer", "modf whole int part is integer")
assertEquals(math.type(f3), "float", "modf whole frac is float")
assertEquals(i3, 4, "modf(4.0) int")
assertEquals(f3, 0.0, "modf(4.0) frac")
end
-- sqrt/exp/log/pow