http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50105
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-08-17 06:22:20 UTC --- Actually, I think that this bug is invalid - but wait for the answers at the J3 mailing list. The reason I think that I think that 6 asterisks should be produced are stated below. However, it would not be the first time that I missed something. We have (refs = F2008): R1007 data-edit-desc is ... or G w [ . d [ E e ] ] such that for G6.5, one has "w = 6". And thus, I expect 6 "*" as: if the "characters produced exceeds the field width, the processor shall fill the entire field of width w with asterisks" Full quote: 10.7.2 Numeric editing, 10.7.2.1 General rules states: "(5) On output, if an exponent exceeds its specified or implied width using the E, EN, ES, D, or G edit descriptor, or the number of characters produced exceeds the field width, the processor shall fill the entire field of width w with asterisks. However, the processor shall not produce asterisks if the field width is not exceeded when optional characters are omitted."