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Diffstat (limited to 'doc/gawktexi.in')
| -rw-r--r-- | doc/gawktexi.in | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/doc/gawktexi.in b/doc/gawktexi.in index 7fd947a5..0723a4c2 100644 --- a/doc/gawktexi.in +++ b/doc/gawktexi.in @@ -18457,10 +18457,15 @@ the call. A function cannot have two parameters with the same name, nor may it have a parameter with the same name as the function itself. -In addition, according to the POSIX standard, function parameters + +@quotation CAUTION +According to the POSIX standard, function parameters cannot have the same name as one of the special predefined variables -(@pxref{Built-in Variables}). Not all versions of @command{awk} enforce -this restriction. +(@pxref{Built-in Variables}), nor may a function parameter have the +same name as another function. +Not all versions of @command{awk} enforce +these restrictions. +@end quotation Local variables act like the empty string if referenced where a string value is required, and like zero if referenced where a numeric value @@ -19177,13 +19182,13 @@ using indirect function calls: @c file eg/prog/indirectcall.awk # average --- return the average of the values in fields $first - $last -function average(first, last, sum, i) +function average(first, last, the_sum, i) @{ - sum = 0; + the_sum = 0; for (i = first; i <= last; i++) - sum += $i + the_sum += $i - return sum / (last - first + 1) + return the_sum / (last - first + 1) @} # sum --- return the sum of the values in fields $first - $last |