https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114304
--- Comment #19 from Tobias Burnus <burnus at gcc dot gnu.org> --- Regarding the LAPACK issue: Actually, I am inclined to * regard it as LAPACK bug * that was also fixed upstream, see comment 6, to make g95 happy. as ';' is not a value separator - while ' ;' is fine, where the blank is a value separator. My testcase of comment 4 therefore always used a space before the ',' / ';'. * * * I have now created an extended testcase, attached to PR105473 as attachment 57695. (Only testing integer/real parsing, not reading the char afterward as in comment 4.) The same testcase can also be found at https://godbolt.org/z/14h48167W and shows the result with gfortran, ifort, ifx and flag. I used this result to add comments to the testcases. * * * For some F2023 wording, see comment 14 above. And I have to admit that I am rather confused by the results as there does not seem to be any consistent pattern; there are cases where I agree with gfortran's error even though neither ifort nor flang show one, while for others, I think gfortran gets it wrong. In particular, I think for the following cases: call t('point', ';') ! gfortran: no error, others: error → IMHO invalid: not a value separator and not an integer. call t('point', '5;') ! gfortran: no error shown, others: error → This is the LAPACK example but for integers. I think ';' is invalid as it is not part of the integer but also not a value separator. call t('comma', '7 ,') ! gfortran: error; others: no error → IMHO valid - I think the ' ' as value separator is sufficient. call t('point', '3.3,', .true.) ! gfortran/flag: error shown; ifort: no error → What's wrong with a comma as value separator? call t('comma', '3,3;', .true.) ! gfortran: error shown; others: no error → Same, except that ';' is now the value separator But in the following cases, I think gfortran is *right*: call t('point', '5.') ! gfortran/flang: Error shown, ifort: no error → '.' is not part of an integer nor a value separator call t('comma', '5,') ! gfortran: error; others: no error → Likewise for ',' - the ',' is not part of an integer nor a value separator Disclaimer: I might have easily overlooked some fine print.
