diff options
Diffstat (limited to 'Doc/Zsh/arith.yo')
| -rw-r--r-- | Doc/Zsh/arith.yo | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/Doc/Zsh/arith.yo b/Doc/Zsh/arith.yo index 80c023301..bb91b6fe9 100644 --- a/Doc/Zsh/arith.yo +++ b/Doc/Zsh/arith.yo @@ -7,12 +7,11 @@ cindex(arithmetic evaluation) cindex(evaluation, arithmetic) findex(let, use of) The shell can perform integer arithmetic, either using the builtin tt(let), -or via a substitution of the form tt($((...))). Usually arithmetic is -performed with em(long) integers; however, on certain systems where a -em(long) has 4-byte precision, zsh may be compiled to use 8-byte precision -instead. This can be tested, for example, by giving the command -`tt(print - $(( 12345678901 )))'; if the number appears unchanged, the -precision is at least 8 bytes. +or via a substitution of the form tt($((...))). The shell is usually +compiled to use 8-byte precision where this is available, otherwise +precision is 4 bytes. This can be tested, for example, by giving the +command `tt(print - $(( 12345678901 )))'; if the number appears unchanged, +the precision is at least 8 bytes. The tt(let) builtin command takes arithmetic expressions as arguments; each is evaluated separately. Since many of the arithmetic operators, as well @@ -85,7 +84,7 @@ Named parameters and subscripted arrays can be referenced by name within an arithmetic expression without using the parameter expansion syntax. For example, -example((((val2 = val1 * 2)))) +example(((val2 = val1 * 2))) assigns twice the value of tt($val1) to the parameter named tt(val2). |