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Diffstat (limited to 'doc/gawk.texi')
| -rw-r--r-- | doc/gawk.texi | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/doc/gawk.texi b/doc/gawk.texi index e5f263b1..08fc7faf 100644 --- a/doc/gawk.texi +++ b/doc/gawk.texi @@ -527,6 +527,7 @@ particular records in a file and perform operations upon them. * I/O Functions:: Functions for files and shell commands. * Time Functions:: Functions for dealing with timestamps. * Bitwise Functions:: Functions for bitwise operations. +* Type Functions:: Functions for type information. * I18N Functions:: Functions for string translation. * User-defined:: Describes User-defined functions in detail. * Definition Syntax:: How to write definitions and what they @@ -12710,6 +12711,12 @@ The parent process ID of the current process. @item PROCINFO["uid"] The value of the @code{getuid()} system call. +@item PROCINFO["sorted_in"] +If this element exists in @code{PROCINFO}, +@emph{no matter what its value}, +then @command{gawk} will cause @samp{for(i in arr) @dots{}} loops +to traverse the array indices in sorted order. + @item PROCINFO["strftime"] The default time format string for @code{strftime()}. Assigning a new value to this element changes the default. @@ -14031,6 +14038,7 @@ but are summarized here for your convenience. * I/O Functions:: Functions for files and shell commands. * Time Functions:: Functions for dealing with timestamps. * Bitwise Functions:: Functions for bitwise operations. +* Type Functions:: Functions for type information. * I18N Functions:: Functions for string translation. @end menu @@ -16182,6 +16190,19 @@ results of the @code{compl()}, @code{lshift()}, and @code{rshift()} functions. @c ENDOFRANGE xor @c ENDOFRANGE opbit +@node Type Functions +@subsection Getting Type Information + +@command{gawk} provides a single function that lets you distinguish +an array from a scalar variable. This is necessary for writing code +that traverses every element of a multidimensional array. + +@table @code +@cindex @code{isarray()} function (@command{gawk}) +@item isarray(@var{x}) +Return a true value if @var{x} is an array. Otherwise return false. +@end table + @node I18N Functions @subsection String-Translation Functions @cindex @command{gawk}, string-translation functions |