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| author | Aymeric Wibo <obiwac@gmail.com> | 2022-08-24 23:20:13 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2022-08-25 00:29:03 +0000 |
| commit | 05c9a0158f6837bb3a3781e4ed75f66115f6415a (patch) | |
| tree | 4d1cd92f4537c4c34ab1de0d436bf8b3e618d518 /include | |
| parent | 465988e9fa8abb222cfda07a82c8f0bfe0f36074 (diff) | |
| download | src-05c9a0158f6837bb3a3781e4ed75f66115f6415a.tar.gz src-05c9a0158f6837bb3a3781e4ed75f66115f6415a.zip | |
libc: Add strverscmp(3) and versionsort(3)
Add a strverscmp(3) function to libc, a GNU extension I implemented by
reading its glibc manual page. It orders strings following a much more
natural ordering (e.g. "ent1 < ent2 < ent10" as opposed to
"ent1 < ent10 < ent2" with strcmp(3)'s lexicographic ordering).
Also add versionsort(3) for use as scandir(3)'s compar argument.
Update manual page for scandir(3) and add one for strverscmp(3).
Reviewed by: pstef, gbe, kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D35807
Diffstat (limited to 'include')
| -rw-r--r-- | include/dirent.h | 1 | ||||
| -rw-r--r-- | include/string.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/dirent.h b/include/dirent.h index 047206258471..751a016838c0 100644 --- a/include/dirent.h +++ b/include/dirent.h @@ -108,6 +108,7 @@ int alphasort(const struct dirent **, const struct dirent **); int dirfd(DIR *); #endif #if __BSD_VISIBLE +int versionsort(const struct dirent **, const struct dirent **); DIR *__opendir2(const char *, int); int fdclosedir(DIR *); ssize_t getdents(int, char *, size_t); diff --git a/include/string.h b/include/string.h index 15d4dc7e9701..dc5756830208 100644 --- a/include/string.h +++ b/include/string.h @@ -81,6 +81,7 @@ char *strcat(char * __restrict, const char * __restrict); char *strchr(const char *, int) __pure; #if __BSD_VISIBLE char *strchrnul(const char*, int) __pure; +int strverscmp(const char *, const char *) __pure; #endif int strcmp(const char *, const char *) __pure; int strcoll(const char *, const char *); |