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Diffstat (limited to 'doc/coreutils.texi')
| -rw-r--r-- | doc/coreutils.texi | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index fd1e79e09..f5a2e41a1 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -11066,8 +11066,21 @@ may be used for grouping in the usual manner. You must quote parentheses and many operators to avoid the shell evaluating them, however. -The only options are @option{--help} and @option{--version}. @xref{Common -options}. Options must precede operands. +By default, @command{expr} performs operations using native arithmetic +types, but if a numeric overflow occurs and @command{expr} was built +with support for the GNU MP library, @command{expr}, it will switch to +using arbitrary-precision arithmetic. + +Apart from @option{--help} and @option{--version} (@pxref{Common +options}), the following options are supported: + +@table @samp +@item --bignum +Forces the use of the GNU MP library. +@item --no-bignum +Forces the use of native operations only. In the event of a numeric +overflow, @command{expr} will fail, even if GNU MP is available. +@end table @cindex exit status of @command{expr} Exit status: |