------- Comment #4 from burnus at gcc dot gnu dot org 2007-09-24 19:17 ------- > We may want to hide the warning behind a -Wshort-transfer option > (or some other appropriate name). Maybe; I think having a warning by default would be more reasonable but it should be hideable.
> Afterall, if a programmer wrote 'rft = transfer(' ', 0.0)', > then s/he probably meant it. I sincerely doubt that the programmer meant that this piece of code produces different results depending on the compiler and possibly some random value in memory. For the given example, many compilers seem to initialize the result with zero; example: PROGRAM printd REAL :: rft rft = TRANSFER(' ', 0.0) print *, rft rft = TRANSFER(' '//achar(0)//achar(0)//achar(0), 0.0) print *, rft END PROGRAM printd The second transfer produces: 4.4841551E-44 g95, ifort and openf95 seem to produce the same result also for the first TRANSFER. gfortran, NAG f95 and sunf95 have, however, a different result every time. Thus, if one wants to argue that the programmer intended a certain value, I would argue that it is the one using a zero-padded SOURCE. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33544