Chapter 01 in progress

01-chapter/file_copying.c

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+/*
+ * =====================================================================================
+ *
+ *       Filename:  file_copying.c
+ *
+ *    Description:  
+ *
+ *        Version:  1.0
+ *        Created:  10/06/26 11:03:43 PM IST
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  YOUR NAME (), 
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+
+#include <stdio.h>
+
+/*
+ *  NEW IMPORTANT LEARNING
+ *   
+ *  1. 
+ *   EOF value is bigger than
+ *   what can be stored in a variable
+ *   with char data-type.
+ *
+ *  2.
+ *   for example,
+ *      c = getchar (  ) is an expression
+ *      which evaluates and return a value
+ *      of c variable after the assignment.
+ *      This is, hence, used in much larger
+ *      expression.
+ */
+
+/* copy input to output */
+
+int
+main (  ) {
+    
+    /* int c; */
+
+    /* while ( ( c = getchar (  ) ) != EOF ) */ 
+    /*     putchar ( c ); */
+    
+
+    int a = EOF;
+    
+    printf ( "%d\n", a );
+
+    return 0;
+}