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Diffstat (limited to 'doc/gawktexi.in')
-rw-r--r-- | doc/gawktexi.in | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/doc/gawktexi.in b/doc/gawktexi.in index e02cd568..81ff1aec 100644 --- a/doc/gawktexi.in +++ b/doc/gawktexi.in @@ -18624,14 +18624,43 @@ Return one of the following strings, depending upon the type of @var{x}: @item "regexp" @var{x} is a strongly typed regexp (@pxref{Strong Regexp Constants}). -@item "scalar_n" +@item "number" @var{x} is a number. -@item "scalar_s" +@item "string" @var{x} is a string. +@item "strnum" +@var{x} is a string that might be a number, such as a field or +the result of calling @code{split()}. (I.e., @var{x} has the STRNUM +attribute; @pxref{Variable Typing}.) + +@item "unassigned" +@var{x} is a scalar variable that has not been assigned a value yet. +For example: + +@example +BEGIN @{ + a[1] # creates a[1] but it has no assigned value + print typeof(a[1]) # scalar_u +@} +@end example + @item "untyped" -@var{x} has not yet been given a type. +@var{x} has not yet been used yet at all; it can become a scalar or an +array. +For example: + +@example +BEGIN @{ + print typeof(x) # x never used --> untyped + mk_arr(x) + print typeof(x) # x now an array --> array +@} + +function mk_arr(a) @{ a[1] = 1 @} +@end example + @end table @end table |