Chapter 01 in progress

01-chapter/CelsiusToFahr.c

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+/*
+ * =====================================================================================
+ *
+ *       Filename:  CelsiusToFahr.c
+ *
+ *    Description:  
+ *
+ *        Version:  1.0
+ *        Created:  10/06/26 10:26:44 PM IST
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  YOUR NAME (), 
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+
+#include <stdio.h>
+
+/*
+ * NEW IMPORTANT LEARNING:
+ *
+ *  '\t' character don't print same number
+ *  of white-space.
+ */
+
+/* print Celsius-Fahrenheit table
+ * for celsius = 0, 20, ...., 300 */
+
+int
+main (  ) {
+
+    float fahr, celsius;
+    int lower, upper, step;
+
+    lower = 0;      /* lower limit of temperature table */
+    upper = 300;    /* upper limit */
+    step = 20;      /* step size */
+
+    celsius = lower;
+
+    const char celsius_string [  ]    = "Celsius";
+    const char fahr_string [  ]       = "Fahrenheit";
+
+    printf ( "=============================" );
+    putchar ( '\n' );
+    printf ( "     Temperature table " );
+    putchar ( '\n' );
+    printf ( "=============================" );
+    putchar ( '\n' );
+    printf ( "%s\t%s", celsius_string, fahr_string );
+    putchar ( '\n' );
+    printf ( "=============================" );
+    putchar ( '\n' );
+
+    while ( celsius <= upper ) {
+        fahr = ( 9.0 / 5.0 ) * celsius + 32.0; 
+        printf ( "%7.0f\t%10.1f\n", celsius, fahr );
+        celsius = celsius + step;
+    }
+
+    return 0;
+}

01-chapter/fahrToCelsius.c

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+/*
+ * =====================================================================================
+ *
+ *       Filename:  temp_conversion.c
+ *
+ *    Description:  
+ *
+ *        Version:  1.0
+ *        Created:  10/06/26 10:03:10 PM IST
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  YOUR NAME (), 
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+
+
+#include <stdio.h>
+
+/* print Fahrenheit-Celsius table
+ * for fahr = 0, 20, ...., 300 */
+
+int
+main (  ) {
+
+    float fahr, celsius;
+    int lower, upper, step;
+
+    lower = 0;      /* lower limit of temperature table */
+    upper = 300;    /* upper limit */
+    step = 20;      /* step size */
+
+    fahr = lower;
+
+    const char fahr_string [  ]       = "Fahrenheit";
+    const char celsius_string [  ]    = "Celsius";
+
+    printf ( "=============================" );
+    putchar ( '\n' );
+    printf ( "     Temperature table " );
+    putchar ( '\n' );
+    printf ( "=============================" );
+    putchar ( '\n' );
+    printf ( "%s\t%s", fahr_string, celsius_string );
+    putchar ( '\n' );
+    printf ( "=============================" );
+    putchar ( '\n' );
+
+    while ( fahr <= upper ) {
+        celsius = 5.0 * ( fahr - 32.0 ) / 9.0;
+        printf ( "%10.0f\t%6.1f\n", fahr, celsius );
+        fahr = fahr + step;
+    }
+
+    return 0;
+}

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;
+}

01-chapter/hello.c

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+/*
+ * =====================================================================================
+ *
+ *       Filename:  hello.c
+ *
+ *    Description:  
+ *
+ *        Version:  1.0
+ *        Created:  14/05/26 03:03:56 PM IST
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  YOUR NAME (), 
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+
+#include <stdio.h>
+
+int
+main ( ) {
+    
+    printf ( "hello, " );
+    printf ( "world" );
+    printf ( "\n" );
+
+    return 0;
+}