Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.

sdk/lib/crt/mem/memchr.c

@@ -0,0 +1,19 @@
+
+#include <string.h>
+
+#if defined(_MSC_VER) && defined(_M_ARM)
+#pragma function(memchr)
+#endif /* _MSC_VER */
+
+void* __cdecl memchr(const void *s, int c, size_t n)
+{
+    if (n)
+    {
+        const char *p = s;
+        do {
+            if (*p++ == c)
+                return (void *)(p-1);
+        } while (--n != 0);
+    }
+    return 0;
+}