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Software consulting companies do projects for their customers on a “Fixed Price basis” or on a “Time and Material basis”. Also, the projects can be either onsite or offsite. Usually, the customers specify how they want the project to be done (Fixed price or Time and Material basis, onsite or offsite). The ultimate aim of […]

Development, Marketing and Technical Support teams play a vital role in the success of a software product. Development team is of course the backbone of the product, Marketing team plays a key role in selling the product and Technical support team provides after sales support to the customers. Often, I use to think why development […]

One of the many tasks that a programmer has is taking a set of characters and breaking it down ino its discrete parts. This may be a comma delimited data file, a full directory path, or a set of program directives to perform an action verb and supply arguments. I often do this to implement […]

Environment: VC 4.0/5.0 I made this code while working on a program for analyzing mathematical expressions, and I made some classes for making things easier. See sample code: express.zip ; the programme was writen using MSVC 4.0 and compiled with MSVC 5.0 This classes can be used for evaluating expressions like : 1+4*(5+9) or 1+var1+var2*(5+b5), […]

In my first year university programming project one of my missions is to write a parser. (Just in case you do not know what a parser is: a parser reads user input that has a complicated structure- such as a mathematical expression or even a programming language- and make sense of it for the computer. […]

When you are writing a lexical analyzer it would be helpful to have a class like the StreamTokenizer class from Sun’s Java, so I’ve done something like that and here it is the CStringTokenizer class, the usage of this class is the same as by the StreamTokenizer from Java, there are a few additional functionality’s […]

Environment: Win98, VC 5.0 This article describes classes to zip and unzip files.  The classes use the gzip GNU source code (gzip-1.2.4a).  This is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License.  See the file COPYING included in the source code. The target DLL exports […]

. // SortableObArray.h ///////////////////////////////////////////////////////////////////// class CSortableObArray : public CObArray { public: void Sort(int(*CompareFunc)(CObject* pFirst, CObject* pSecond)); void Sort(int iStartPos, int iElements, int(*CompareFunc)(CObject* pFirst, CObject* pSecond)); }; template< class TYPE > class CTypedSortableObArray : public CSortableObArray { public: // Accessing elements TYPE GetAt(int nIndex) const { return (TYPE)CSortableObArray::GetAt(nIndex); } TYPE& ElementAt(int nIndex) { return (TYPE&)CSortableObArray::ElementAt(nIndex); } […]

. When using containers in a program, I declare a class which represents an item in a container: // Can also be a struct class CMyClass : public CObject {     // Program specific     … }; typedef CTypedPtrList TMyList; Separate class (container) has the actual container object: class CMyClassList : public CObject {     […]

. // SortableObList.h ///////////////////////////////////////////////////////////////////// class CSortableObList : public CObList { public: CSortableObList(int nBlockSize = 10) : CObList(nBlockSize) { } void Sort(int(*CompareFunc)(CObject* pFirstObj, CObject*pSecondObj)); void Sort(POSITION posStart, int iElements, int (*CompareFunc)(CObject* pFirstObj, CObject* pSecondObj)); }; template< class TYPE > class CTypedSortableObList : public CSortableObList { public: // Construction CTypedSortableObList(int nBlockSize = 10) : CSortableObList(nBlockSize) { } […]

Environment: Win98, VC 5.0 Description: For quite a long time now, I’m using the exception class I’m presenting in this article and for a reason I can’t figure out, I don’t see any equivalent anywhere in specialized web sites or in class libraries.  Actually, I have no idea how far this exception class is clever, […]

Class CNumericFormat was developed to provide user customizable numeric formatting to display any numeric data in your application. Format information for displaying numbers is described by format string. Format string can contain following information: Decimal point position and number of digits after decimal point Rules for displaying significant and insignificant digits Scaling a number by […]