diff options
Diffstat (limited to 'doc/gawk.texi')
| -rw-r--r-- | doc/gawk.texi | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/doc/gawk.texi b/doc/gawk.texi index 68512c2d..457a20f2 100644 --- a/doc/gawk.texi +++ b/doc/gawk.texi @@ -19375,8 +19375,12 @@ According to the POSIX standard, function parameters cannot have the same name as one of the special predefined variables (@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. +@command{gawk} always enforces the first restriction. +With @option{--posix} (@pxref{Options}), +it also enforces the second restriction. @end quotation Local variables act like the empty string if referenced where a string @@ -20094,13 +20098,13 @@ 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, the_sum, i) +function average(first, last, sum, i) @{ - the_sum = 0; + sum = 0; for (i = first; i <= last; i++) - the_sum += $i + sum += $i - return the_sum / (last - first + 1) + return sum / (last - first + 1) @} # sum --- return the sum of the values in fields $first - $last |