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| author | Garrett Wollman <wollman@FreeBSD.org> | 2002-03-22 20:46:59 +0000 |
|---|---|---|
| committer | Garrett Wollman <wollman@FreeBSD.org> | 2002-03-22 20:46:59 +0000 |
| commit | 7316a9465e22d1517913f33f964dcadf9dfb21c9 (patch) | |
| tree | 4ca4140482980f155861067f465a11399f77507a /bin/expr/expr.1 | |
| parent | f477880a4fc51bf79f1ceaf4cb67e99b51e90b00 (diff) | |
| download | src-7316a9465e22d1517913f33f964dcadf9dfb21c9.tar.gz src-7316a9465e22d1517913f33f964dcadf9dfb21c9.zip | |
Add a word of caution about integer arithmetic range and overflow detection.
Notes
Notes:
svn path=/head/; revision=92983
Diffstat (limited to 'bin/expr/expr.1')
| -rw-r--r-- | bin/expr/expr.1 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/bin/expr/expr.1 b/bin/expr/expr.1 index fed0d30dd90a..717f9f6435b2 100644 --- a/bin/expr/expr.1 +++ b/bin/expr/expr.1 @@ -217,3 +217,9 @@ The .Nm utility conforms to .St -p1003.1-2001 . +.Tn POSIX +does not specify whether arithmetic overflow is detected, nor does it specify +the possible range of integer arguments to +.Nm , +so a portable application must assume that the range is small and that +overflow may not be detected. |