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mktime: merge another wrapv change from gnulib

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* time/mktime.c (TYPE_MAXIMUM): Rework slightly to avoid diagnostics
from some compilers.
This commit is contained in:
Paul Eggert 2012-03-16 03:04:42 -07:00
parent 6860543348
commit 72a22e596c
2 changed files with 5 additions and 1 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2012-05-23 Paul Eggert <eggert@cs.ucla.edu>
mktime: merge another wrapv change from gnulib
* time/mktime.c (TYPE_MAXIMUM): Rework slightly to avoid diagnostics
from some compilers.
mktime: remove incorrect attempt at unusual arithmetics
* time/mktime.c (TYPE_ONES_COMPLEMENT, TYPE_SIGNED_MAGNITUDE): Remove.
The code didn't really work on such machines anyway.

2
time/mktime.c
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@ -121,7 +121,7 @@ verify (long_int_is_wide_enough, INT_MAX == INT_MAX * (long_int) 2 / 2);
#define TYPE_MAXIMUM(t) \
((t) (! TYPE_SIGNED (t) \
? (t) -1 \
: ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
: ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
#ifndef TIME_T_MIN
# define TIME_T_MIN TYPE_MINIMUM (time_t)