What is optimization in c++?
when using volatile.optimization is not possible..what does
this mean?



What is optimization in c++? when using volatile.optimization is not possible..what does this mean..

Answer / sindhu

In C, the keyword Volatile tells the compiler that the value
of that variable may change unexpectedly(not using the code
that is found nearby).So the optimizer must do nothing to
the variable to make the code efficient.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More C++ General Interview Questions

Consider a c++ template funtion template<class T> T& Add(T a, T b){return a+b ;} if this function is called as T c = Add("SAM", "SUNG"); what will happen? What is the problem in the template declaration/ How to solve the problem.

7 Answers   LG, Samsung,


What are static type checking?

0 Answers  


What is a .lib file in c++?

0 Answers  


What are the benefits of c++?

0 Answers  


Which software is best for programming?

0 Answers  


How do I tokenize a string in c++?

0 Answers  


What is :: operator in c++?

0 Answers  


What is vector pair in c++?

0 Answers  


What is scope resolution operator in c++ with example?

0 Answers  


Explain container class.

0 Answers  


What is encapsulation in C++? Give an example.

0 Answers   HAL, Honeywell, Zomato,


can any one help to find a specific string between html tags which is changed to a sting.. weather.html looks (for location) is <location>somewhere</location> #include <iostream> #include <fstream> #include <string> using namespace std; string find_field(string myPage,string); int main (void) { string page, line, location, temperature; ifstream inputFile("weather.xml"); while(getline(inputFile, line)) { page.append(line); line.erase(); } // Now page is a string that contains the whole xml page // Here you need to write something that finds and // extracts location and temperature from the XML // data in the string page and stores them in // the strings location and temperature respectively location=find_field(page,"location"); temperature=find_field(page,"temp_c"); cout << "Location: "<<location << endl; cout << "Temperature: " << temperature << endl; system("pause"); } string find_field(string myPage,string find_string){ int temp=myPage.find(find_string); if(temp!=string::npos) { cout << "Match found at " << temp << endl; } return "found?"; } ///

0 Answers  


Categories