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Diffstat (limited to 'doc/gawk.texi')
| -rw-r--r-- | doc/gawk.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/gawk.texi b/doc/gawk.texi index f3c54551..6c41c99a 100644 --- a/doc/gawk.texi +++ b/doc/gawk.texi @@ -30923,6 +30923,13 @@ An extension can look up the value of @command{gawk}'s special variables. However, with the exception of the @code{PROCINFO} array, an extension cannot change any of those variables. +@quotation NOTE +It is possible for the lookup of @code{PROCINFO} to fail. This happens if +the @command{awk} program being run does not reference @code{PROCINFO}; +in this case @command{gawk} doesn't bother to create the array and +populate it. +@end quotation + @node Symbol table by cookie @subsubsection Variable Access and Update by Cookie |