From 9bc8a11afeed3569736b89754012e3ca22ee10f6 Mon Sep 17 00:00:00 2001 From: pommicket Date: Sun, 20 Feb 2022 13:18:21 -0800 Subject: conclusion --- 05/musl-0.6.0/src/string/memset.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 05/musl-0.6.0/src/string/memset.c (limited to '05/musl-0.6.0/src/string/memset.c') diff --git a/05/musl-0.6.0/src/string/memset.c b/05/musl-0.6.0/src/string/memset.c new file mode 100644 index 0000000..20e47c4 --- /dev/null +++ b/05/musl-0.6.0/src/string/memset.c @@ -0,0 +1,21 @@ +#include +#include +#include +#include + +#define SS (sizeof(size_t)) +#define ALIGN (sizeof(size_t)-1) +#define ONES ((size_t)-1/UCHAR_MAX) + +void *memset(void *dest, int c, size_t n) +{ + unsigned char *s = dest; + c = (unsigned char)c; + for (; ((uintptr_t)s & ALIGN) && n; n--) *s++ = c; + if (n) { + size_t *w, k = ONES * c; + for (w = (void *)s; n>=SS; n-=SS, w++) *w = k; + for (s = (void *)w; n; n--, s++) *s = c; + } + return dest; +} -- cgit v1.2.3