Programming Fundamentals: Library Functions in C++
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Questions and Answers

What do you need to do to use a library function like sqrt() in your program?

  • Link the source file containing the function
  • Modify the compiler settings
  • Remove the function from the library file
  • Link the library file containing the function (correct)
  • Where can functions in your source file obtain information about functions in library files?

  • Footer files
  • Main program
  • Source files
  • Header files (correct)
  • What is the purpose of a header file in C programming?

  • Contains information for a group of functions (correct)
  • Contains the actual function implementations
  • Is only used for comments and documentation
  • Is used for storing variable declarations
  • Which function returns the natural logarithm of a given number?

    <p>log(x)</p> Signup and view all the answers

    What does the function cbrt(x) do?

    <p>Returns the cube root of x</p> Signup and view all the answers

    What is the purpose of the object in the lecture notes?

    <p>All of the above</p> Signup and view all the answers

    Where are the library functions in C++ declared and defined?

    <p>In special files called 'Header Files'</p> Signup and view all the answers

    What is the required header file to use the sqrt() function?

    <p>#include</p> Signup and view all the answers

    What is the purpose of the linker when using library functions?

    <p>To extract the machine-executable code for the functions from the library files</p> Signup and view all the answers

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