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Diffstat (limited to 'manual/argp.texi')
| -rw-r--r-- | manual/argp.texi | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/manual/argp.texi b/manual/argp.texi index f28a87afc6..c049d0e1b6 100644 --- a/manual/argp.texi +++ b/manual/argp.texi @@ -271,13 +271,15 @@ group); in this usage, it's conventional to end the string with a The group this option is in. In a long help message, options are sorted alphabetically within each -group, and the groups presented in the order @math{0, 1, 2, @dots{}, @var{n}, --@var{m}, @dots{}, -2, -1}. Every entry in an options array with this +group, and the groups presented in the order @math{0, 1, 2,} @dots{}, +@math{@var{n}, -@var{m},} @dots{}, @math{-2, -1}. Every entry in an +options array with this field 0 will inherit the group number of the previous entry, or zero if it's the first one, unless its a group header (@code{name} and -@code{key} fields both zero), in which case, the previous entry @math{+ 1} is +@code{key} fields both zero), in which case, the previous entry +@math{@w{} + 1} is the default. Automagic options such as @samp{--help} are put into group ---1. +@math{-1}. Note that because of C structure initialization rules, this field often need not be specified, because 0 is the right value. |