A sort-of-bug has been found by Kameril with the SetFormattedText command in World of Warcraft. Kameril observed that the command has inconsistencies in rounding.

Kameril gave an example of the inconsistency:

local function print(msg)

DEFAULT_CHAT_FRAME:AddMessage(msg)

end

local fs = CreateFrame("Frame"):CreateFontString()

fs:SetFontObject("GameFontNormal")

function TestFormats(float)

print(format("%d", float)/0

fs:SetFormattedText("%d", float)

print(fs:GetText())

end

TestFormats(.4) => 0, 0 as expected

TestFormats(.6) => 0, 1 SetFormattedText rounds up