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| author | wollman <wollman@FreeBSD.org> | 2002-03-22 20:46:59 +0000 |
|---|---|---|
| committer | wollman <wollman@FreeBSD.org> | 2002-03-22 20:46:59 +0000 |
| commit | dc0ab814755418de5883bee3cb4a968bc6d94b5b (patch) | |
| tree | 4ca4140482980f155861067f465a11399f77507a /bin/expr | |
| parent | c1037fd271f807b973718abeb7ceedb9d2e8334b (diff) | |
| download | FreeBSD-src-dc0ab814755418de5883bee3cb4a968bc6d94b5b.zip FreeBSD-src-dc0ab814755418de5883bee3cb4a968bc6d94b5b.tar.gz | |
Add a word of caution about integer arithmetic range and overflow detection.
Diffstat (limited to 'bin/expr')
| -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 fed0d30..717f9f6 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. |
