The standard way of handling all input and output is done with streams in C programming regardless of where input is coming from or where output is going to. This approach has definite advantages for the programmer. A library package has been evolved which is known as known as the Standard I/O Library which is used in any C program by using stdio.h header. First, however, we need to understand exactly what the terms input and output mean in context of C.
C programs are executed in a sequence, but we can control the execution of program by using any control mechanism by which we can compare things and come to a decision. This involves using some operations called Relational Operators, conditional statements called if-else and loops. We have fundamental operators to compare two values.
This is an automated software system written in C programming language for Bank Management which can handle accounts for customers. It uses files to handle the daily transactions, account management and user management. Its not a complete accounting software just like implemented in the banks, but still it can manage the accounts of the customers using the files at back end. It has a nice graphical layout written in C Language.
In a lot of programs my gensort-utility turned out to be very useful. It consists simply of the header file
LibGD is an open source Graphics library for the creation of images dynamically by programmers. GD is written in C, and “wrappers” are available for Perl, PHP and other languages. GD is commonly used to generate charts, graphics, thumbnails, and most anything else, on the fly. While not restricted to use on the web, the most common applications of GD involve website development. It allows to quickly draw images complete with lines, arcs, text, multiple colors, cut and paste from other images, and flood fills, and write out the result as a PNG or JPEG file. Â
The SFL (Standard Function Library) is an open source portable function library for C/C++ programs. Written by iMatix, the SFL provides about 450 functions for compression, encryption, encoding, datatype conversion and formatting, dates, times, calendars, internet programming (MIME, CGI) and many more.
Truecrypt is an Open Source utility written in C that allows you to encrypt files or disk volumes on Windows or Linux and is very secure. It creates a virtual encrypted dist within a file and mounts it as a real disk.
Ubiqx is a collection of ANSI C compatible modules for implementing linked lists, binary trees, caching and spare arrays. The goal of the ubiqx project is to develop a set of clean, small, re-usable code modules which implement fundamental constructs and mechanisms, and to make them available under the terms of the GNU Library General Public License (LGPL).
Adobe Source Libraries (ASL) provides peer-reviewed and portable C++ source libraries. The libraries are intended to be widely useful, leveraging and extending both the C++ Standard Library and the Boost Libraries.
This is a better String Library which is superior to the existing C String library i.e. char string type, or C++’s std::string. It is safer with regard to buffer overflows, simpler than C string manipulation, works ok for ‘\0’ terminated strings and generally faster for common string operations.
FLIB2C is a tool to create header files that provide a simple and easy-to-use interface between FORTRAN (library) routines and C. The differences between the FORTRAN and C calling sequences are hidden in a header file that has to be created for every FORTRAN library. FLIB2C simplifies the task of creating a header file.
To configure the program, edit the file “jsconfig.h”. Since this is a general configuration file, not all settings may apply to this package. If in doubt, use grep or anything else to find out if a specific configuration symbol is used somewhere.
