Initial commit

kapitel19/felsok-ex1.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+
+int main(void)
+{
+    int x;
+    int y = 5;
+
+    char text[20] = "Hejsan";
+
+    for (x = 1; y < 100; x++)
+    {
+        y = (y*3)-x;
+    }
+    printf("%s\n", text);
+
+    return 0;
+}

kapitel19/felsok-ex2.c

@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+float circum(float d);
+
+int main(int argc, char *argv[])
+{
+    float di;
+    if (argc < 2)
+    {
+        fprintf(stderr, "Usage: %s diamater\n", argv[0]);
+        return 1;
+    }
+
+    di = atof(argv[1]);
+    printf ("Circumference of a circle with a diamater %.2f is"
+            " %.2f\n", di, circum(di));
+    return 0;
+}
+
+float circum(float d)
+{
+    float pi = 3.14159265;
+    return (pi*d);
+}

kapitel19/flt-fel1.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+char *say(char namn[]);
+
+int main(void)
+{
+    char *mening = say("Jack-Benny");
+    printf("%s\n", mening);
+    free(mening);
+    printf("Lisa hojtar: %s\n", mening);
+    return 0;
+}
+
+char *say(char namn[])
+{
+    char *str;
+    str = calloc(50, sizeof(char));
+    strncat(str, "Hej ", 4);
+    strncat(str, namn, 45);
+    return str;
+}

kapitel19/leak1.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void)
+{
+    char* buffer;
+    buffer = malloc(sizeof(char)*15);
+    *buffer = '\0';
+    strcpy(buffer, "Hejsan svejsan");
+    printf("%s\n", buffer);
+    free(buffer);
+    return 0;
+}

kapitel19/oinitialiserat-ex1.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void)
+{
+    char* str;
+    strcat(str, "Hej alla");
+    printf("%s\n", str);
+    return 0;
+}

kapitel19/undersoka-minne.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void)
+{
+    char *a;
+    a = malloc(10*sizeof(char));
+    *a = '\0';
+    strcpy(a, "Hej hej");
+    printf("Strängen %s\n", a);
+    *a = '\0';
+    printf("Strängen %s\n", a);
+
+    free(a);
+    return 0;
+}