move exercises and lectures into subfolders

Lectures/LC21/Cond/cond.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/* We define one thing - we need not give it a value, but we can */
+#define BUILD1
+ 
+int main(void)
+{
+
+ 
+ printf ("\nThis code is common to all ");
+
+/* We check for the existance ob 'BUILD1' and act accordingly */
+
+#ifdef BUILD1  
+
+ printf ("\nWe had BUILD1 defined ");
+
+#else
+
+ printf ("\nBUILD1 was not defined ");
+
+#endif
+
+/* Can can see if somthing was not defined too */
+
+#ifndef BUILD2
+
+  printf ("\nBUILD2 was *NOT* defined ");
+
+#endif
+
+  printf ("\n\n");
+
+  return 0;
+
+}

Lectures/LC21/GetThem/getthem.c

@@ -0,0 +1,24 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+  int age;
+  char name[10];
+
+  /* we check the argument count is 3  ( prog name plus 2 params ) */ 
+  if ( argc != 3 )
+  {
+    printf ("\nProgram use %s name age ",argv[0]);
+    exit (0);
+  } 
+
+  /* Copy the command parameters into suitable variables */ 
+  sscanf(argv[1],"%s",name);
+  sscanf(argv[2],"%d",&age);
+
+  /* And display for all to see */ 
+  printf ("\nHello %s, you are %d ",name,age);
+  
+  return 0;
+}

Lectures/LC21/Simple/simple.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>   
+
+/* Note the new type of main */
+
+int main(int argc, char *argv[])
+{ 
+     int x; 
+     
+     /* Print the argument count */
+     printf("Arguments -> %d\n",argc); 
+     
+     /* And the arguments themselves */
+     for (x=0; x<argc; x++) 
+        printf("%s\n",argv[x]);        
+        
+     return 0;
+} 
+

Lectures/LC21/Sprints/sprints.c

@@ -0,0 +1,23 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+int main(void)
+{
+  char buffer[100];
+  int age=6;
+  char name[6];
+  
+  /* This command copies "James" into the character array 'Name' */
+
+  strcpy(name,"James");
+
+  /* Print to the string (rather than screen) */
+
+  sprintf(buffer,"Name: %s, Age %d ",name,age);
+
+  /* And output the string created */
+  printf("\n->%s\n",buffer);
+
+  return 0;
+}

Lectures/LC21/use.c

@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define BUILD1 23
+ 
+int main(void)
+{
+
+ int MyValue = 0;
+ 
+ printf ("\nThis code is common to all ");
+
+#ifdef BUILD1  
+
+ printf ("\nWe had BUILD1 defined, will adjust value accordingly  ");
+ MyValue = BUILD1;
+
+#else
+
+ printf ("\nBUILD1 was not defined, leaving MyValue alone ");
+
+#endif
+
+  printf  ("\nThe value in MyValue is %d ",MyValue);
+  printf ("\n\n");
+
+  return 0;
+
+}