[Bug libfortran/40330] [4.5 Regression] incorrect IO

jvdelisle at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Thu Jul 9 01:20:00 GMT 2009

------- Comment #34 from jvdelisle at gcc dot gnu dot org  2009-07-09 01:20 -------
Subject: Bug 40330

Author: jvdelisle
Date: Thu Jul  9 01:20:23 2009
New Revision: 149398

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149398
2009-07-08  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libfortran/40330
        PR libfortran/40662
        * io/io.h (st_parameter_dt): Define format_not_saved bit used to signal
        whether the parsed format data was previously saved. Used to determine
        if the current format data should be freed or not.
        * io/transfer.c (st_read_done): Use the format_not_saved bit.
        (st_write_done): Likewise.
        * io/format.c (parse_format_list): Add boolean pointer to arg list.
        pointer is used to return status to the caller regarding whether it is
        safe to cache the parsed format data.  Currently, if a FMT_STRING token
        is encounetered, it is not safe to cache. Also, added a local boolean
        variable to hold this information as recursive calls to
        parse_format_list are made.  Remove previous save_format logic.
        (parse_format): Do not use the format caching facility if the current
        unit is an internal unit or if it is not safe to save parsed format




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