[PATCH, libgfortran] Remove generate_error from mem_alloc_w_at and clean up

[Jerry DeLisle]

Revised patch attached.

Revised ChangeLog:

2005-10-07  Jerry DeLisle  <jvdelisle@verizon.net>

         * io/transfer.c (write_block): Add test for end-of-file condition,
         removed from mem_alloc_w_at. (next_record_w): Clean up checks for
         NULL pointer returns from s_alloc_w.
         * io/unix.c (mem_alloc_w_at): Remove call to generate_error end-of-file.
         * io/write.c (write_float): Add checks for NULL pointer returns from
         write_block calls. (write_integer): Same.

OK for mainline after retesting?

Regards,

Jerry
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