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* fileio.c (Fverify_visited_file_modtime): Avoid time overflow

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if b->modtime has its maximal value.
This commit is contained in:
Paul Eggert 2011-06-01 23:23:20 -07:00
parent 76118f10b0
commit 6f9028d2dc
2 changed files with 4 additions and 1 deletions
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src/ChangeLog
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@ -1,5 +1,8 @@
2011-06-02 Paul Eggert <eggert@cs.ucla.edu>
* fileio.c (Fverify_visited_file_modtime): Avoid time overflow
if b->modtime has its maximal value.
* dired.c (Ffile_attributes): Don't assume EMACS_INT has >32 bits.
* lisp.h: Include <intprops.h>, as it'll useful in later changes.

2
src/fileio.c
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@ -4960,7 +4960,7 @@ See Info node `(elisp)Modification Time' for more details. */)
if ((st.st_mtime == b->modtime
/* If both are positive, accept them if they are off by one second. */
|| (st.st_mtime > 0 && b->modtime > 0
&& (st.st_mtime == b->modtime + 1
&& (st.st_mtime - 1 == b->modtime
|| st.st_mtime == b->modtime - 1)))
&& (st.st_size == b->modtime_size
|| b->modtime_size < 0))