Structure of C++ Program
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Questions and Answers

What is the main advantage of separate compilation with multiple C++ source files?

  • Faster compilation of the entire project
  • Smaller executable file size
  • Easier debugging of the code
  • Ability to work on the project in parallel (correct)

What is the main purpose of the linking step in a C++ project with multiple source files?

  • To resolve external references and assign final memory addresses (correct)
  • To optimize the performance of the compiled code
  • To combine the object code files into a single executable
  • To check for syntax errors in the source code

How does the preprocessor modify the source code before compilation?

  • It optimizes the code for better performance
  • It checks the code for syntax errors
  • It removes all comments and whitespace
  • It expands macros and includes header files (correct)

What is the main benefit of only recompiling changed files in a large C++ project?

<p>Faster overall build times (A)</p> Signup and view all the answers

What is the purpose of the $main$ function in a C++ program with multiple source files?

<p>It is the entry point of the program (B)</p> Signup and view all the answers

What is the role of the preprocessor instruction $#include$ in a C++ program?

<p>It is used to include external header files (C)</p> Signup and view all the answers

What is the purpose of #include directive in C++?

<p>Include header files for declarations (D)</p> Signup and view all the answers

What type of information is contained in header files in C++?

<p>Function prototypes and data types (D)</p> Signup and view all the answers

What do library files in C++ typically consist of?

<p>Machine code function implementations (C)</p> Signup and view all the answers

Which file type is used for header files in C++?

<p>.h (D)</p> Signup and view all the answers

What is contained in a standard header file for input and output streams in C++?

<p>Function prototypes and data types (B)</p> Signup and view all the answers

Which type of files use the #insert directive in C++?

<p>Library files (B)</p> Signup and view all the answers

What is the relationship between C and C++?

<p>C++ evolved from C and is based on it (B)</p> Signup and view all the answers

How did Bjarne Stroustrup contribute to the development of C language?

<p>He added Object Oriented Programming features to C (C)</p> Signup and view all the answers

Why is Separate Compilation important in C++ for large programs?

<p>It helps in reducing compilation time and avoids compiler conflicts with team members (B)</p> Signup and view all the answers

What are the consequences of using Single File Programs for large C++ programs?

<p>Compilation times can be extended to minutes, hours, or days, leading to potential compiler issues (A)</p> Signup and view all the answers

Which of the following tools are commonly used for writing C++ programs?

<p>Visual Studio, Eclipse, emacs editor (D)</p> Signup and view all the answers

Why did Bjarne Stroustrup add Object Oriented Programming features to C++?

<p>To enhance the capabilities of the language with OOP features (A)</p> Signup and view all the answers

What was the primary purpose of creating the C programming language?

<p>To develop the Unix operating system (B)</p> Signup and view all the answers

In what year was the C++ programming language first developed?

<p>1979 (B)</p> Signup and view all the answers

Which of the following statements about C++ is not true?

<p>C++ is an interpreted language (C)</p> Signup and view all the answers

What is the relationship between C and C++?

<p>C++ is a superset of the C programming language with added OOP functionality (D)</p> Signup and view all the answers

What is the significance of the PDP-11 computer in the history of C?

<p>C was first implemented on the PDP-11 in 1972 (B)</p> Signup and view all the answers

What is the primary purpose of a header file in C++?

<p>To serve as a reference or guide for using libraries and their components (C)</p> Signup and view all the answers

What is the role of the using namespace std; directive in C++?

<p>It allows the programmer to use identifiers from the standard library without the <code>std::</code> prefix (C)</p> Signup and view all the answers

What is the purpose of the int main() function in a C++ program?

<p>It defines the entry point of the program where execution begins (B)</p> Signup and view all the answers

What does the :: operator represent in C++?

<p>It is used to access members of a namespace (C)</p> Signup and view all the answers

What is the purpose of the cout object in C++?

<p>It is a standard output stream for printing to the console (A)</p> Signup and view all the answers

Why are namespaces important in C++?

<p>They allow for better organization and separation of code (B)</p> Signup and view all the answers

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