#include "musl.h" /* * Copied from musl libc version 1.2.5 licensed under the MIT license * * Christian Göttsche: Added const qualifiers to retain const correctness. */ #include #include #ifdef __GNUC__ typedef __attribute__((__may_alias__)) size_t WT; #define WS (sizeof(WT)) #endif void *musl_memmove(void *dest, const void *src, size_t n) { char *d = dest; const char *s = src; if (d==s) return d; if ((uintptr_t)s-(uintptr_t)d-n <= -2*n) return musl_memcpy(d, s, n); if (d=WS; n-=WS, d+=WS, s+=WS) *(WT *)d = *(const WT *)s; } #endif for (; n; n--) *d++ = *s++; } else { #ifdef __GNUC__ 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) = *(const WT *)(s+n); } #endif while (n) n--, d[n] = s[n]; } return dest; }