diff options
| -rw-r--r-- | ChangeLog | 2 | ||||
| -rw-r--r-- | wcsmbs/wcsnlen.c | 22 |
2 files changed, 6 insertions, 18 deletions
@@ -1,5 +1,7 @@ 2019-02-27 Adhemerval Zanella <adhemerval.zanella@linaro.org> + * wcsmbs/wcsnlen.c (__wcsnlen): Rewrite using wmemchr. + * wcsmbs/wcsncpy.c (__wcsncpy): Rewrite using wcsnlen, wmemset, and wmemcpy. diff --git a/wcsmbs/wcsnlen.c b/wcsmbs/wcsnlen.c index f3d5fc1fba..d38c7e4953 100644 --- a/wcsmbs/wcsnlen.c +++ b/wcsmbs/wcsnlen.c @@ -26,24 +26,10 @@ size_t __wcsnlen (const wchar_t *s, size_t maxlen) { - size_t len = 0; - - while (maxlen > 0 && s[len] != L'\0') - { - ++len; - if (--maxlen == 0 || s[len] == L'\0') - return len; - ++len; - if (--maxlen == 0 || s[len] == L'\0') - return len; - ++len; - if (--maxlen == 0 || s[len] == L'\0') - return len; - ++len; - --maxlen; - } - - return len; + const wchar_t *ret = __wmemchr (s, L'\0', maxlen); + if (ret) + maxlen = ret - s; + return maxlen; } #ifndef WCSNLEN weak_alias (__wcsnlen, wcsnlen) |