diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | wcsmbs/wcpncpy.c | 57 |
2 files changed, 8 insertions, 52 deletions
@@ -1,5 +1,8 @@ 2019-02-27 Adhemerval Zanella <adhemerval.zanella@linaro.org> + * wcsmbs/wcpncpy.c (__wcpcpy): Rewrite using wcslen, wmemcpy, and + wmemset. + * sysdeps/m68k/wcpcpy.c: Remove file. * wcsmbs/wcpcpy.c (__wcpcpy): Rewrite using wcslen and wmemcpy. diff --git a/wcsmbs/wcpncpy.c b/wcsmbs/wcpncpy.c index 7568f3b..74f22c2 100644 --- a/wcsmbs/wcpncpy.c +++ b/wcsmbs/wcpncpy.c @@ -27,59 +27,12 @@ wchar_t * __wcpncpy (wchar_t *dest, const wchar_t *src, size_t n) { - wint_t c; - wchar_t *const s = dest; - - if (n >= 4) - { - size_t n4 = n >> 2; - - for (;;) - { - c = *src++; - *dest++ = c; - if (c == L'\0') - break; - c = *src++; - *dest++ = c; - if (c == L'\0') - break; - c = *src++; - *dest++ = c; - if (c == L'\0') - break; - c = *src++; - *dest++ = c; - if (c == L'\0') - break; - if (--n4 == 0) - goto last_chars; - } - n -= dest - s; - goto zero_fill; - } - - last_chars: - n &= 3; - if (n == 0) + size_t size = __wcsnlen (src, n); + __wmemcpy (dest, src, size); + dest += size; + if (size == n) return dest; - - for (;;) - { - c = *src++; - --n; - *dest++ = c; - if (c == L'\0') - break; - if (n == 0) - return dest; - } - - zero_fill: - while (n-- > 0) - dest[n] = L'\0'; - - return dest - 1; + return wmemset (dest, L'\0', (n - size)); } #ifndef WCPNCPY |