Merge branch 'master' of https://git.cscherr.de/PlexSheep/c-basic

CMakeLists.txt

@@ -27,7 +27,7 @@ add_executable( hello-world             src/hello-world.c           )
 add_executable( options                 src/options.c               )
 add_executable( pointermagic            src/pointermagic.c          )
 add_executable( primenumbers            src/primenumbers.c          )
-add_executable( print-syste-constants  src/print-system-constants.c )
+add_executable( print-syste-constants  src/print-system-constants.c)
 add_executable( quersumme               src/quersumme.c             )
 add_executable( readfile                src/readfile.c              )
 add_executable( redefinition            src/redefinition.c          )
@@ -43,7 +43,10 @@ add_executable( tabtest                 src/tabtest.c               )
 add_executable( umlaut                  src/umlaut.c                )
 add_executable( unary-double-not        src/unary-double-not.c      )
 add_executable( warning                 src/warning.c               )
+add_executable( miniio                 	src/miniio.c               	)
+add_executable( stackoverflow           src/stackoverflow.c         )
 add_executable( pointer-arithmetic      src/pointer-arithmetic.c    )
+add_executable( while-to-do-while       src/while-to-do-while.c     )
 
 target_link_libraries(abc m)    # link libm to abc
 
@@ -56,16 +59,16 @@ add_executable( huffman                 src/huffman/src/huffman.c       )
 execute_process (
 	COMMAND bash -c "mkdir -p src/huffman/testfiles"
 	COMMAND bash -c "yes 'SAFJALJ AF OIAIFOsdp' | head -c 100KB > src/huffman/testfiles/small.txt"
-	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/1K-random.img 		count=1 bs=1KiB"
+	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/1K-random.img count=1KiB"
-	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/10K-random.img 	count=1 bs=10KiB"
+	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/10K-random.img count=10KiB"
-	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/100K-random.img 	count=1 bs=100KiB"
+	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/100K-random.img count=100KiB"
-	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/1M-random.img 		count=1 bs=1MiB"
+	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/1M-random.img count=1MiB"
-	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/10M-random.img 	count=1 bs=10MiB"
+	COMMAND bash -c "dd if=/dev/urandom of=src/huffman/testfiles/10M-random.img count=10MiB"
-	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/1K-zero.img 				count=1 bs=1KiB"
+	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/1K-zero.img count=1KiB"
-	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/10K-zero.img 				count=1 bs=10KiB"
+	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/10K-zero.img count=10KiB"
-	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/100K-zero.img 			count=1 bs=100KiB"
+	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/100K-zero.img count=100KiB"
-	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/1M-zero.img 				count=1 bs=1MiB"
+	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/1M-zero.img count=1MiB"
-	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/10M-zero.img 				count=1 bs=10MiB"
+	COMMAND bash -c "dd if=/dev/zero of=src/huffman/testfiles/10M-zero.img count=10MiB"
 	COMMAND bash -c "echo -e \"Wer\ndas\nliest\nist\ndoof\n\" > src/huffman/testfiles/tiny.txt"
 	COMMAND bash -c "yes 'lslfkpoipop iipfiasp' | head -c 1MB > src/huffman/testfiles/mid.txt"
 )

build.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+cmake . && cmake --build .

src/miniio.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <string.h>
+
+int my_strlen(const char *s) {
+  int len = 0;
+  while (s[len] != 0) {
+      len++;
+  }
+  return len;
+}
+
+int main() {
+  char word[] = "hallo\0"; // not NULL terminated
+
+  printf("word is %d long\n", my_strlen(word));
+  printf("word is actually %lu long\n", strlen(word));
+  printf("success: %b", my_strlen(word) == strlen(word));
+
+  return 0;
+}

src/stackoverflow.c

@@ -0,0 +1,11 @@
+int mem = 0x1337;
+
+void foo() {
+  int buf = 0;
+  foo();
+}
+
+int main() {
+  foo();
+  return 0;
+}

src/while-to-do-while.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main() {
+    int init = 5;
+    int i = init;
+    while (i < 10 || i == init) {
+        printf("helo %d\n", i);
+        i++;
+    } 
+    i = init;
+    do {
+        printf("ahelo %d\n", i);
+        i++;
+    } while (i < 10);
+}