Index: fusl/src/string/memmove.c |
diff --git a/fusl/src/string/memmove.c b/fusl/src/string/memmove.c |
index 27f670e1a31fe860ff6ce17a453559ef42706aeb..03aae1ce9e0486e934c3c0731fd448f394d52cd7 100644 |
--- a/fusl/src/string/memmove.c |
+++ b/fusl/src/string/memmove.c |
@@ -4,33 +4,40 @@ |
#define WT size_t |
#define WS (sizeof(WT)) |
-void *memmove(void *dest, const void *src, size_t n) |
-{ |
- char *d = dest; |
- const char *s = src; |
+void* memmove(void* dest, const void* src, size_t n) { |
+ char* d = dest; |
+ const char* s = src; |
- if (d==s) return d; |
- if (s+n <= d || d+n <= s) return memcpy(d, s, n); |
+ if (d == s) |
+ return d; |
+ if (s + n <= d || d + n <= s) |
+ return memcpy(d, s, n); |
- if (d<s) { |
- if ((uintptr_t)s % WS == (uintptr_t)d % WS) { |
- while ((uintptr_t)d % WS) { |
- if (!n--) return dest; |
- *d++ = *s++; |
- } |
- for (; n>=WS; n-=WS, d+=WS, s+=WS) *(WT *)d = *(WT *)s; |
- } |
- for (; n; n--) *d++ = *s++; |
- } else { |
- if ((uintptr_t)s % WS == (uintptr_t)d % WS) { |
- while ((uintptr_t)(d+n) % WS) { |
- if (!n--) return dest; |
- d[n] = s[n]; |
- } |
- while (n>=WS) n-=WS, *(WT *)(d+n) = *(WT *)(s+n); |
- } |
- while (n) n--, d[n] = s[n]; |
- } |
+ if (d < s) { |
+ if ((uintptr_t)s % WS == (uintptr_t)d % WS) { |
+ while ((uintptr_t)d % WS) { |
+ if (!n--) |
+ return dest; |
+ *d++ = *s++; |
+ } |
+ for (; n >= WS; n -= WS, d += WS, s += WS) |
+ *(WT*)d = *(WT*)s; |
+ } |
+ for (; n; n--) |
+ *d++ = *s++; |
+ } else { |
+ if ((uintptr_t)s % WS == (uintptr_t)d % WS) { |
+ while ((uintptr_t)(d + n) % WS) { |
+ if (!n--) |
+ return dest; |
+ d[n] = s[n]; |
+ } |
+ while (n >= WS) |
+ n -= WS, *(WT*)(d + n) = *(WT*)(s + n); |
+ } |
+ while (n) |
+ n--, d[n] = s[n]; |
+ } |
- return dest; |
+ return dest; |
} |