https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98384
--- Comment #17 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Patrick Palka from comment #16) > (In reply to r...@cebitec.uni-bielefeld.de from comment #14) > > > --- Comment #13 from Patrick Palka <ppalka at gcc dot gnu.org> --- [..] > > Which according to ISO C 2017, p.228, is allowed: "trailing zeros may > > be omitted". > > Ack. Darwin also produces the trailing zeros. For the #c13 test with Jakub's correction (x86_64-darwin16): 0x8p-3 1.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 52125389249491778072998734723901065658344854339911180645920036689145962141728255198944006625782458697361398052188320725945500187466736263651898402197281418601194866666114137406392103946594069442529773439118695632979327870214580049152501161485502649632222947505166386519043250141814251625491416037224583585022738137785584320282641248955105327838594556002939771000202665231335009645885816784092727359474711102827146567529583202954627003333796860257717072319132149129951852089814871685652019158129352457876413077731822944690893023783688156197557228348257706445069058168217860984489364449216192153697464386313372616125802493006313011849107453714600675828600445923171763793130115636080004121099460216359522049035859262314715833943305021976057857853126510419437495501816388939228067001371011547274042754738463678560481977277814562542528910043287233881513857018892008936293030725951345023187328378120620598203530289119602404678381135515657024501288339144721058539176378789830725427845326462393386911535328986994985182586470400.000000