C Programming Tutorial

 
 
 

Advanced Programming

Array

One dimensional array Two dimensional Array Two dimensional array pointers Array of pointers Print array Print Array - for loop Print array in reverse Print address array - for loop Multidimentional array - function Print address array - pointers Print reverse string of array Print array ascii value-without atoi Character array - upper case Multiplication table - 2D array Passing array to function Max or greatest value in array Merge sorted array Array of structure Array of pointers to string Array within a structure

String Programs

Copy string Substring of string String concatination Vowel in string Swap char in string Palindrome string Rotate string Bubble sort of strings Sorting of words Encode decode string Compress string

File Programs

Read write in 2 files Add,edit,delete,search in file Add,search using structure Append in file Merge file Count word,line,char in file Count record - struct fread() example fwrite() example fopen() example fclose() example fscanf() and fprintf() fseek() example Error handling in file op Find odd,even num Odd even numbers in file Max, min age in class Random numbers file Preprocessor in 2 files Encode decode in file

Bios Programming

biosequip( ) - sys confi biosdisk( ) - partition tbl info Pc type-bios data area File allocation table Telephone directory

TSR Programming

Interchange letters Interchange letters on screen Unload TSR on key press-keyboard Unload TSR - timer interrupt Activate, deactivate TSR Print alphabet from printer Repeat key press Keep caps on Make ctrl, alt key pressed

Interrupt Programming

Restart computer Conventional memory of sys Save IVT in file Print string-interrupt 21h Read char-interrupt 21h Read char with echo-interrupt 21h Delete file-interrupt 21h Delete directory-interrupt 21h Get set system date Show system configuration Search, delete file in dir Display multiple file in dir

Mouse Programming

Text mode mouse handling Graphics mode mouse handling Double click of mouse
 

ERROR HANDLING IN FILE OPERATIONS

 
#include  <stdio.h>                                             

    main()                                                          
    {                                                               
       char  *filename;                                            
        FILE  *fp1, *fp2;                                           
        int   i, number;                                            

        fp1 = fopen(\"TEST\", \"w\");                                   
        for(i = 10; i <= 100; i += 10)                              
           putw(i, fp1);                                            

        fclose(fp1);                                                

        printf(\"\\nInput filename\\n\");                               

    open_file:                                                      
        scanf(\"%s\", filename);                                      

        if((fp2 = fopen(filename,\"r\")) == NULL)                     
        {                                                           
           printf(\"Cannot open the file.\\n\");                       
           printf(\"Type filename again.\\n\\n\");                      
           goto open_file;                                          
        }                                                           
        else                                                        

        for(i = 1; i <= 20; i++)                                    
        {  number = getw(fp2);                                      
           if(feof(fp2))                                            
           {                                                        
              printf(\"\\nRan out of data.\\n\");                       
              break;                                                
           }                                                        
           else                                                     
              printf(\"%d\\n\", number);                               
        }                                                           

        fclose(fp2);                                                
    }                                                               







Output                                                           

   Input filename                                                   
   TETS                                                             
   Cannot open the file.                                            
   Type filename again.                                             

   TEST                                                             
   10                                                               
   20                                                               
   30                                                               
   40                                                               
   50                                                               
   60                                                               
   70                                                               
   80                                                               
   90                                                               
   100                                                            

   Ran out of data.

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