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Diffstat (limited to 'manual/filesys.texi')
| -rw-r--r-- | manual/filesys.texi | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/manual/filesys.texi b/manual/filesys.texi index afe072c594..5ddd8a20a7 100644 --- a/manual/filesys.texi +++ b/manual/filesys.texi @@ -455,8 +455,8 @@ value are selected. Finally the entries in the @var{namelist} are sorted using the user supplied function @var{cmp}. The arguments of the @var{cmp} function are of type @code{struct dirent **}. I.e., one cannot directly use the -@code{strcmp} or @code{strcoll} function; see the function -@code{alphasort} below. +@code{strcmp} or @code{strcoll} function; see the functions +@code{alphasort} and @code{versionsort} below. The return value of the function gives the number of entries placed in @var{namelist}. If it is @code{-1} an error occurred and the global @@ -465,7 +465,7 @@ variable @code{errno} contains more information on the error. As said above the fourth argument to the @code{scandir} function must be a pointer to a sorting function. For the convenience of the programmer -the GNU C library contains an implementation of a function which is very +the GNU C library contains implementations of functions which are very helpful for this purpose. @deftypefun int alphasort (const void *@var{a}, const void *@var{b}) @@ -478,6 +478,11 @@ Return value of is less than, equal to, or greater than zero depending on the order of the two entries @var{a} and @var{b}. @end deftypefun +@deftypefun int versionsort (const void *@var{a}, const void *@var{b}) +The @code{versionsort} function is like @code{alphasort}, excepted that it +uses the @code{strverscmp} function internally. +@end deftypefun + @node Simple Directory Lister Mark II @subsection Simple Program to List a Directory, Mark II |