Answer / achal ubbott

Raw sockets are useful when you want to inject or capture
almost anything(without IP or TCP/UDP headers and the CRC)
on to the ethernet. They operate in Data Link Layer of
TCP/IP model.
Unix/Linux have been supporting them since ages. But
Windows have recentlly stopped their support, because of
security hazards. On windows OS you would have to use
Winpcap network driver library to play with these
sockets.It bypasses the OS's network stack.

cheers

Answer / manjunath gn

Raw sockets are the sockets created at Data link layer.
They are useful in layer 2 communication

Does improper inheritance have a potential to wreck a project?

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class Alpha { public: char data[10000]; Alpha(); ~Alpha(); }; class Beta { public: Beta() { n = 0; } void FillData(Alpha a); private: int n; }; How do you make the above sample code more efficient? a) If possible, make the constructor for Beta private to reduce the overhead of public constructors. b) Change the return type in FillData to int to negate the implicit return conversion from "int" to "void". c) Make the destructor for Alpha virtual. d) Make the constructor for Alpha virtual. e) Pass a const reference to Alpha in FillData

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which is the easy way to divide any integer by 2?

2 Answers   Persistent,

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What is singleton pattern in c++?

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How do you declare a set in c++?

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which one is equivalent to multiplying by 2:Left shifting a number by 1 or Left shifting an unsigned int or char by 1?

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Any one help me plzzzz..... i have an assignment...... that is ______*********_______ Write a program that takes an equation as a string and does the following: Solve 8 parts to achieve 100% 1 - 5 are compulsory. Input: 2x^2+3x+4=0 1) read a quadratic equation 2) print its coefficients (coefficients range is 0 to 9) 3) print the solution of the equation 4) tackle imaginary solution e.g. ( (2+3i), (2-3i) ) 5) allow spaces within the input 6) after solving one equation; ask for an other, terminate on empty line. * 7) tackle negative values as well * 8) tackle more than one values of same exponent (e.g. 2x^2 + 3x^2 + 4x + 3 = 0)* 9) use strtok * 10) print the solution in fractions e.g. 1.5 should be printed as (1)1/2 * 11) coefficient can be greater than 9** 12) values on both sides of the ‘=’ sign** 13) plot the graph of the polynomial** 14) use a compiler other than Borland** 15) submit before May 25, 2009 11:59 PM ** _______******________ plz send me c++ code at sweety.alvi@gmail.com

1 Answers  

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How does java differ from c and c++?

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What are containers in c++?

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