Initial commit of lecture code

LC8/complex_if.c

@@ -0,0 +1,35 @@
+/* EEEE1001/H61CAE Chapter 8 */
+
+/* Example of a simple if statements */
+
+
+#include <stdio.h>	/* Standard include files */
+#include <stdlib.h>
+#include <conio.h>
+
+
+int main( void )
+{
+
+    int a = 1, b = 6;	// Define and intialise variables
+
+
+    if ( (a == 1 ) && ( b == 6 ) )
+    {
+        printf("a is 1 AND b is 6\n" );
+    }
+
+	if ( (a == 1 ) || ( b == 99 ) )
+    {
+        printf("a is 1 OR b is 99\n" );
+    }
+
+    if (( b < a ) || ( a == 7 ) )
+    {
+        printf ("The value of b is less than a  OR a is 7\n");
+    }
+
+
+    return 0;
+
+}

LC8/if_else_if_else.c

@@ -0,0 +1,35 @@
+/* Chapter 8 */
+
+/* Example of a simple if statements */
+
+
+#include <stdio.h>	/* Standard include files */
+#include <stdlib.h>
+#include <conio.h>
+
+
+int main( void )
+{
+
+    int x = 55;	// Define and intialise variable
+
+
+    if ( x == 2 )
+    {
+        printf ("The value of x was 2\n");
+        printf ("I will now do something\n");
+    }
+    else if ( x == 3 )
+    {
+        printf ("The value of x was 3\n");
+        printf ("I will now do something else\n");
+    }
+    else
+    {
+        printf ("x is neither 2 or 3; I will do this instead!\n");
+    }
+
+
+    return 0;
+
+}

LC8/if_equals_example.c

@@ -0,0 +1,37 @@
+/* EEEE1001/H61CAE Chapter 8 */
+
+/* Incorrect use of a single equals sign in an if statement */
+
+
+#include <stdio.h>	/* Standard include files */
+#include <stdlib.h>
+#include <conio.h>
+
+
+int main( void )
+{
+
+    int c = 6;	// Define variable as initialise with value
+
+	printf ("\nThe current value in c is %d\n",c);		// Display value in c
+
+	// This is correct
+    if ( c == 1 )
+    {
+        printf("\nThe value of c is 1\n" );
+    }
+
+	printf ("\nThe current value in c is %d\n",c);		// Display value in c
+
+	// This is WRONG - it is setting c to one, this value is then tested
+	// and, as non-zero, is considered to be TRUE
+    if ( c = 1 )
+    {
+        printf("\nThe value of c is 1\n" );
+    }
+
+	printf ("\nThe current value in c is %d\n",c);		// Display value in c
+
+    return 0;
+
+}

LC8/if_examples.c

@@ -0,0 +1,34 @@
+/* Chapter 8 */
+
+/* Example of a simple if statements */
+
+
+#include <stdio.h>	/* Standard include files */
+#include <stdlib.h>
+#include <conio.h>
+
+
+int main( void )
+{
+
+    int a = 1, b = 6;	// Define and intialise variables
+
+
+    if ( a == 1 )
+    {
+        printf("\nThe value of a is 1\n" );
+    }
+
+    if ( a < b )
+    {
+        printf ("The value of a is less than b\n");
+    }
+
+    if ( b < a )
+    {
+        printf ("The value of b is less than a\n");
+    }
+
+    return 0;
+
+}

LC8/switch_1.c

@@ -0,0 +1,31 @@
+/* EEEE1001/H61CAE Chapter 8 */
+
+/* Example of a simple if statements */
+
+
+#include <stdio.h>	/* Standard include files */
+#include <stdlib.h>
+
+int main( void )
+{
+
+    int a;									/* Define an int */
+    scanf ("%d",&a);						/* Get value */
+    switch (a)								/* Start of switch */
+    {
+        case 1:
+            printf("Hi");  		/* Case 1 */
+            break;
+
+        case 2:
+            printf("Bye"); 		/* Case 2 */
+            break;
+
+        default :
+            printf("Err"); 		/* Default */
+            break;
+    }
+
+    return 0;
+
+}

LC8/switch_2.c

@@ -0,0 +1,34 @@
+/* Chapter 8 */
+
+/* Example of a simple if statements */
+
+
+#include <stdio.h>	/* Standard include files */
+#include <stdlib.h>
+
+#include <conio.h>	/* Required for getch() */
+
+int main( void )
+{
+
+    char c;									/* Define an char */
+    c = getch();						    /* Get value - no return required*/
+
+    switch (c)								/* Start of switch */
+    {
+        case '1':
+            printf("Hi");  		/* Case 1 */
+            break;
+
+        case '2':
+            printf("Bye"); 		/* Case 2 */
+            break;
+
+        default :
+            printf("Err"); 		/* Default */
+            break;
+    }
+
+    return 0;
+
+}

LC8/switch_3.c

@@ -0,0 +1,33 @@
+/* EEEE1001/H61CAE Chapter 8 */
+
+/* Example of a simple if statements */
+
+
+#include <stdio.h>	/* Standard include files */
+#include <stdlib.h>
+
+#include <conio.h>	/* Required for getch() */
+
+int main( void )
+{
+
+    char c;									/* Define an char */
+    c = getch();						    /* Get value - no return required*/
+
+    switch (c)								/* Start of switch */
+    {
+        case '1':
+            printf("Hi");  		/* Case 1 */            
+
+        case '2':
+            printf("Bye"); 		/* Case 2 */
+            break;
+
+        default :
+            printf("Err"); 		/* Default */
+            break;
+    }
+
+    return 0;
+
+}