From: Mart Lubbers <mart@martlubbers.net>
Date: Mon, 23 Feb 2015 13:42:26 +0000 (+0100)
Subject: added assignment3, ex1 not working...
X-Git-Url: https://git.martlubbers.net/?a=commitdiff_plain;h=ecc7f4a8bab90d35a1939c4e0fe0cffe681498d3;p=sws1-1415.git

added assignment3, ex1 not working...
---

diff --git a/ass3/assignment3.pdf b/ass3/assignment3.pdf
new file mode 100644
index 0000000..38c7fa8
Binary files /dev/null and b/ass3/assignment3.pdf differ
diff --git a/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise1.c b/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise1.c
new file mode 100644
index 0000000..8f94702
--- /dev/null
+++ b/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise1.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+
+int main(void)
+{
+	char a = 0;
+	magic_function();
+	char b = 0;
+	printf("%p\n", &a);
+	printf("%p\n", &b);
+
+	return 0;
+}
diff --git a/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise2.c b/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise2.c
new file mode 100644
index 0000000..30ab2a4
--- /dev/null
+++ b/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise2.c
@@ -0,0 +1,37 @@
+#include <stdlib.h>
+
+typedef unsigned char uc;
+typedef unsigned __int128 uint128;
+
+void addvector(int *r, const int *a, const int *b, size_t len)
+{
+	for(int *r2 = r; r2 < r + len;r2++, a++, b++)
+		*r2 = *a + *b;
+}
+
+int memcmp(const void *s1, const void *s2, size_t n)
+{
+	for(uc *s3 = (uc*)s1, *s4 = (uc*)s2; s3 < (uc*)s1 + n; s3++, s4++)
+		if(*s3 != *s4)
+			return *s3-*s4;
+	return 0;
+}
+
+int memcmp_backwards(const void *s1, const void *s2, size_t n)
+{
+	for(uc *s3 = (uc*)s1+n, *s4 = (uc*)s2+n; s3 >= (uc*)s1; s3--, s4--)
+		if(*s3 != *s4)
+			return *s3-*s4;
+	return 0;
+}
+
+int memcmp_fast(const void *s1, const void *s2, size_t n)
+{
+	uint128 *s3 = (uint128 *)s1;
+	uint128 *s4 = (uint128 *)s2;
+	unsigned int blocks = n/sizeof(uint128);
+	for(; s3<((uint128*)s1)+blocks; s3++, s4++)
+		if(*s3 != *s4) 
+			return memcmp(s3, s4, sizeof(uint128));
+	return memcmp(s3, s4, n % sizeof(uint128));
+}
diff --git a/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise3 b/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise3
new file mode 100644
index 0000000..eaea4ef
--- /dev/null
+++ b/ass3/mart/sws1-assignment3-s4109503-s4202015/exercise3
@@ -0,0 +1,17 @@
+a) 0x7fffb3cc3b20 
+   Location of the array
+
+b) 0x7fffb3cc3b24
+   Location of first element plus sizeof(4)
+
+c) 0x7fffb3cc3b30
+   Location of array plus sizeof(4*4)
+
+d) 25
+   Value of x[0]
+
+e) 28
+   Value of x[0] plus the value of x[2]
+
+f) 151
+   Value of x[0] plus the value of x[3]
diff --git a/ass3/mart/sws1-assignment3-s4109503-s4202015/mf.c b/ass3/mart/sws1-assignment3-s4109503-s4202015/mf.c
new file mode 100644
index 0000000..a8be370
--- /dev/null
+++ b/ass3/mart/sws1-assignment3-s4109503-s4202015/mf.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+void magic_function()
+{
+	char a = 0;
+	a = a+1;
+}