Challenging Poll from Marathi Newspaper

Posted by admin on March 25, 2008 under Fun, Marathi | 2 Comments to Read

Here is the screen shot of a poll conducted by a leading Marathi Newspaper almost a year back. I find it toooooooooooooo…….. challenging ???? questioning my knowledge and intelligence. Leave your comment below – What do you think about such polls.

Digital Art of Tamil Actress Asin and Telugu Actress

Posted by admin on under Digital Art | Comments are off for this article

The effects in these images were created using Retriever and Adobe Photoshop. In fact you can use some custom photoshop actions to achieve the same effects. But I am more comfortable with Retriever.

Memory Leaks Detection in Programming

Posted by admin on March 24, 2008 under Programming | 2 Comments to Read

Books on Memory Leaks in Programming

Navigating C++ and Object-oriented Design – Page 381
by Paul Anderson, Gail Anderson – Computers – 1998 – 800 pages

To make the memory leak detector track calls properly, your system should … Here’s how to compile this program and link it with the memory leak detector. …

Expert C Programming – Page 184
by Peter Van der Linden – Computers – 1994

We use the term “memory leak” because a scarce resource is draining away in a process. The main user-visible symptom of a memory leak is that the guilty …

Pro C# 2005 and the .Net 2.0 Platform – Page 72
by Andrew W. Troelsen – Computers – 2005 – 982 pages

Is That a Memory Leak? If you have a background in C++, you may be alarmed by the previous code samples. Specifically, notice how the …

Embedded Linux System Design and Development - Page 283
by Pichai Raghavan, Amol Lad, Sriram Neelakandan – Computers – 2006 – 400 pages

leak.c:6 Thus the user is informed that while tracing was turned on, a memory leak was detected. A chunk of memory of size 19 bytes (Ox 13) that was …

Windows 2000 Performance Guide – Page 312
by Mark Friedman, Odysseas Pentakalos – Computers – 2002 – 718 pages

A program containing a memory leak bug often executes to completion and produces the correct results, so the presence of the bug is not always detected. …

Pro C# with .Net 3.0 – Page 72
by Andrew Troelsen – Computers – 2007 – 1186 pages

Is That a Memory Leak? If you have a background in C++, you may be alarmed … NET garbage collector frees the allocated memory automatically, and therefore …

Data Abstraction and Structures Using C++ - Page 319
by Mark R. Headington, David D. Riley – Computers – 1994

Figure 7.19 Example of a dangling pointer A memory leak occurs when a … A second way to create a memory leak is to leave inaccessible objects on the free …

Hardcore Java – Page 257
by Robert Simmons – Computers – 2004 – 344 pages

Garbage collection protects you from only one kind of memory leak, … In languages such as C++, a memory leak resembles a lost pointer to an allocated …

Data Abstraction and Structures Using C++ - Page 319
by Mark R. Headington, David D. Riley – Computers – 1994

Figure 7.19 Example of a dangling pointer A memory leak occurs when a … A second way to create a memory leak is to leave inaccessible objects on the free …

Code Quality: The Open Source Perspective - Page 65
by Diomidis Spinellis – Science – 2006 – 569 pages

2.6.4 Resource Leaks In Section 5.5.3, we define as a memory leak the condition whereby a program allocates memory blocks and then loses track of them. …

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Commercial Tools to Find Memory Leaks

1. Find Memory Leaks - Insure++ finds *memory* leaks and corruption in C/C++ applications. www.parasoft.com
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3. .NET Memory Profiler - Find memory leaks and optimize memory usage in any .NET program. memprofiler.com
4. Leak Testing / Detection – Leak Testers and custom machines We Test, You Produce www.ATeq.com

Useful Sites for Detecting Memory Leaks

1. Memory Leak Detection in C++
2. Memory Leak Detection in Embedded Systems
3. Just Say No to Memory Leaks

What is wstring – Discussion on wstring

Posted by admin on March 23, 2008 under Programming | Comments are off for this article

What is wstring – Discussion on wstring

Can somebody tell how much std::wstring is supported across different compilers on different platforms? AFAIK std::string is supported by almost all C++ compilers and almost all platforms, is that also the case with wstring?

Another related question that I have is, is it advisable to use wstring than string for unicode support? To be able to support Unicode build, is it that all the occurrence of std::string will need to be changed to std::wstring?

I am little new to unicode stuff so please elaborate or point me to external links for reference if need be. Not sure that if it is the right forum to post this question but I guess it is related.

std::wstring is not necesarrily unicode. On windows it will likely be the unicode-subset also used by Java, but there are now guarantees.

All conforming compilers will support std::wstring. I doubt you can find a compiler that supports std::string but not std::wstring.

libstdc++ port for Windows (as bundled with mingw compiler) does not support std::wstring, because its implementation is dependent on POSIX-style locale. But one can always use STLPort, which does support std::wstring with this compiler.

On platforms that directly support Unicode on the operating system level, wchar_t usually is some Unicode encoding (on Windows 2000 or newer it’s UTF-16). I’d say that it’s OK to use std::wstring and wchar_t to handle Unicode strings if both are true:

The standard string implementations are not designed for handling multi-character encodings – this means that they’re not designed for UTF-8 in 8 bit char derived std::string and nor are they designed for UTF-16 in 16 bit wchar_t derived std::wstring. The only safe way is to create your own char traits to use 32 bit integers in std::basic_string<> and then convert to UTF-16 and UTF-8 as needed.

Having said that though, you can use std::string and std::wstring (assuming char is 8 bit and wchar_t is 16 bit) so long as you’re careful. Remember that length() will return the number of UTF-8 or UTF-16 encoded characters and that functions like substr() are liable to chop within a single code point as a single Unicode code point can be up to four UTF-8 chars and two UTF-16 wchar_ts.

You can not use std::wstring as a generic unicode string in Windows as the representation is encoded using the same principle as for utf-8. Thus, s[i] might not necesarrily return the i’th character of s. If you are aware of this (or only process characters in the basic plane), you are safe.

Common Questions About wstring

• wstring to CString conversion : cstring, wstring
• CString to wstring : wstring, cstring
• BSTR to wstring : wstring, bstr, convert
• char ptr to wstring – Urgent! : wstring, char
• How do I convert wstring variable to LCPWSTR? : convert, wstring …
• How do I initilize a “vector <wstring> vtws” variable? : vector
• wide char array to wstring : wstring, char, assign
• How do I get the Variant result to wstring variable? : messagebox …
• CopyFile : wchar_t, wstring
• Loading a File into an array or vector of wstring’s : vector, wstrings
• Convert from wstring to string? : wstring, string, convert
• What’s the safe and best way to assing the VARIANT to wstring?
• std::wstring wont work with overloaded std::operator<< : error …
• How to convert from wstring to string? : convert, wstring, string
• How to convert from wstring to string? : convert, wstring, string
• Writing wstring to text file : wstring, wchar_t
• wstring(char *Text) constructor ?? or how to handle ? : wstring
  

Books That talk about wstring

C++ In a Nutshell – Page 672 by Ray Lischner

The string and wstring types are therefore much easier to use and offer greater safety (see the at member function), while still offering ease-of-use with …

C++ Cookbook – Page 468 by D. Ryan Stephens – Computers – 2005 – 592 pages

The exact implementation of wchar_t is implementation defined, but it is often UTF-32. The class wstring, defined in <string>, is a sequence of …

Handbook of Object Technology by Saba Zamir – Computers – 1999 – 1168 pages

There are three main template types: • string and wstring – string and wide-character string types; both bounded string/wstring and unbounded string/wstring …

Effective STL: 50 Specific Ways to Improve Your Use of the Standard Template … - Page 4 by Scott Meyers, Michael Peirce, Hitesh Tewari – Standard template library. (Computer file) – 2001 – 260 pages

Similarly, any time I refer to the relationship between string and char or char*, the same is true of the relationship between wstring and wchar_t or

Chemical Reaction Engineering Notes Books

Posted by admin on March 20, 2008 under Engineering | Comments are off for this article

Aim of CRE – Chemical Reaction Engineering Course: Fundamentals of Chemical Kinetics, Catalysis and Chemical Reactors. Contents

1 – Chemical Kinetics

Classification of chemical reactions. Fundamentals of chemical kinetics and reaction mechanisms (overview). Chemical processes and catalysis: homogeneous and heterogeneous catalysis.

2 – Heterogeneous Catalysis

Definition of basic concepts and historical landmarks. Activity, selectivity and stability of catalysts. General mechanism of catalytic reactions. Chemisorption and Langmuir’s equation. Kinetics and mechanisms of heterogeneous catalytic reactions. Catalyst types and activity correlations: metals, non-stoichiometric oxides and acids. Bi- functional catalysts. Zeolites and shape selectivity. Components of a catalyst: supports, active phases and promoters. Methods of preparation. Deactivation mechanisms and catalysts regeneration.

3 – Introduction to Chemical Reactors: Ideal Models

Classification of chemical reactors. Material balances. Ideal models: the batch reactor, the plug flow reactor and the stirred tank reactor. Design of chemical reactors. Kinetic analysis of experimental data. Reactor associations.

4 – Examples of Catalytic Processes

Detailed study of some selected catalytic processes, emphasizing the relationships between process chemistry and engineering.

Reference Books for Chemical Reaction Engineering Course

• Elements of Chemical Reaction Engineering, H.S. Fogler, 3rd edition, Prentice-Hall, 1999.
• Chemical Reaction Engineering, O. Levenspiel, 3rd edition, John Wiley, 1999.
• Chemistry of Catalytic Processes, B.C.Gates, J.R.Katzer, G.C.A.Schuit, McGraw-Hill, 1979.

Sonika Gill – Forgotten Bollywood Actress Sonica Gill

Posted by admin on March 19, 2008 under Bollywood | Comments are off for this article

Thought of starting articles on yesteryears forgotten actresses. The name flashed into my mind to start with is Sonica Gill (Sonika Gill). (Seen movie Ram Lakhan recently on some TV channel). She was Mallika Sherawat of nineties.

Sonica Gill – Born on 20 September

Major Movies of SoniKa Gill

• Bhai Bhai (1997)
• Ghar Ki Izzat (1994)
• Jeena Marna Tere Sang (1992)
• Tirangaa (1992)
• First Love Letter (1991)
• Maut Ki Sazaa (1991)
• Sau Crore (1991)
• Ghar Ho To Aisa (1990)
• Clerk (1989)
• Ram Lakhan (1989)
• Paanch Fauladi (1988)
• Halaal Ki Kamai (1988)
• Kachchi Kali (1987)
• Kalyug Aur Ramayan (1987)