reorganization: first steps

1 files changed, 0 insertions, 82 deletions

diff --git a/src/shared/mem.c b/src/shared/mem.c
deleted file mode 100644
index 14dd6bd..0000000
--- a/src/shared/mem.c
+++ /dev/null
@@ -1,82 +0,0 @@
-#include <assert.h>
-#include <shared/mem.h>
-#include <stdint.h>
-
-union dualptr_const { const uintptr_t *w; const char *c; uintptr_t u; };
-union dualptr       {       uintptr_t *w;       char *c; uintptr_t u; };
-
-void *memchr(const void *s, int c, size_t n) {
-	const unsigned char *s2 = s;
-	for (size_t i = 0; i < n; i++) {
-		if (s2[i] == (unsigned char)c)
-			return (void*)&s2[i];
-	}
-	return NULL;
-}
-
-int memcmp(const void *s1, const void *s2, size_t n) {
-	const unsigned char *c1 = s1, *c2 = s2;
-	for (size_t i = 0; i < n; i++) {
-		if (c1[i] != c2[i]) {
-			if (c1[i] < c2[i])  return -1;
-			else                return 1;
-		}
-	}
-	return 0;
-}
-
-void *memcpy(void *dest, const void *src, size_t n) {
-	// TODO erms, rep movsb
-	union dualptr_const s = {.c = src};
-	union dualptr d = {.c = dest};
-	if (dest == src) return dest;
-	// assert(src >= dest || src + n < dest);
-
-	for (; (d.u & 7) && n != 0; n--) {
-		*(d.c)++ = *(s.c)++;
-	}
-	while (n >= sizeof(uintptr_t)) {
-		*(d.w)++ = *(s.w)++;
-		n -= sizeof(uintptr_t);
-	}
-	while (n-- != 0) {
-		*(d.c)++ = *(s.c)++;
-	}
-	return dest;
-}
-
-void *memmove(void *dest, const void *src, size_t n) {
-	if (src >= dest || src + n < dest)
-		return memcpy(dest, src, n);
-	for (; n; n--) /* naive reverse copy */
-		((uint8_t*)dest)[n-1] = ((uint8_t*)src)[n-1];
-	return dest;
-}
-
-void *memset(void *s, int c, size_t n) {
-	union dualptr d = {.c = s};
-
-	uintptr_t fill = (c & 0xff) * 0x0101010101010101;
-	while (n >= sizeof(uintptr_t)) {
-		*(d.w)++ = fill;
-		n -= sizeof(uintptr_t);
-	}
-	while (n-- != 0)
-		*(d.c)++ = c;
-	return s;
-}
-
-int strcmp(const char *s1, const char *s2) {
-	while (*s1 && *s1 == *s2) {
-		s1++; s2++;
-	}
-	if (*s1 == *s2) return  0;
-	if (*s1 <  *s2) return -1;
-	else            return  1;
-}
-
-size_t strlen(const char *s) {
-	size_t c = 0;
-	while (*s++) c++;
-	return c;
-}