Function Terminology

Transcription

1 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 1 Print Name Time Required =. Hrs. Signature (pledged) Function Terminology 1] A C_?_ is a Value that cannot be altered by the program during normal execution 2] Write a line of C/C++ code to create a constant, called TaxRate, whose assigned value is HINT there is no semicolon. 3] AV_?_ is a storage location paired with an associated symbolic name, which contains some known or unknown quantity of information referred to as a Value. 4] Write a line of C/C++ code to create an integer variable, called Major, whose known/initialized value is CS. 5] Both C & C++ are languages whose datatyping is _?_ {static/dynamic}. 6] List at least three languages whose datatyping is static. 7] List at least three languages whose datatyping is static. 8] The slides list 3 reasons we need functions. List those reasons. R D R A P tasks into smaller partitions for teams. 9] The slides provide the recommended program layout for C & C++. Assign numbers 1-5 to the following to reflect that order. Structs & Classes Include Statements Functions Define Statements Prototypes 10] {T/F} It is never appropriate to have 1 line functions. 11] Write the line of C/C++ code to clear the terminal window when using Visual Studio.

2 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 2 About Memory Maps 1] {T/F} The memory maps, in the slides includes [1] a box representing the container [2] the number of bytes required to store the container at the top [3] the symbolic name for the container at the side [4] an address where the computer has chosen to store the variable at the bottom (sometimes made up but could be determined) 2] Write the line of C/C++ code to create the64 bit Visual Studio variable represented in the memory map above. 3] What is the symbolic name stored in the memory map above? 4] Write the line of C/C++ code to increment the value stored in No1. 5] Write the line of C/C++ code to display the value stored in No1. Output format is to be: No1 = 5 6] Write the line of C/C++ code to display the address (hex) where No1 is stored in memory. Output format: &No1 = 1B2A 7] Write the line of C/C++ code to display the address (decimal) where No1 is stored in memory. Output format: &No1 = ] Write the line of C/C++ code to display the number of bytes allocated to No1. Memory Maps Assume Compiler Assigns Memory Starting At &1000 (Decimal) for each of the following char CH = 'A'; 1] Sketch the Memory Map for CH.

3 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 3 long int X; 1] Sketch the Memory Map for CH. Functions 1] Write the complete C/C++ of code for function Decrement. suppose the contents of long int container X = 5 after passing X to Decrement, the value is to be 1 less X would be 4. You may not use reference variables. There is to be no explicit return. Test your code if you are not sure. 2] Write the line of C/C++ code that you might place in main to call your function Decrement pass X to your function. 3] {T/F} You can pass the constant 5 to your Decrement function. double A = 1, B = 0, C = -25, Root1, Root2; 4-13] Write the complete C/C++ of code for function Quadratic. Pass your function A, B, C by value. Pass Root1 & Root2 by reference. When finished, Root1 & Root2 should contain the quadratic roots ( 5 & -5 this time). Display an error message if unable to set the roots. Test your solution! <If you choose to code this, you may staple a printout, that includes this function, to the back>

4 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 4 short int ExamGrade = GetShort("Enter Exam Grade", 0, 100); cout << "Your ExamGrade = " << ExamGrade << endl << endl; 14-23] You can see, in the function call above, that GetShort is passed a prompt, a low, and a high. The function will continue to prompt the user & solicit a response until the user enters a value in the range low <= x <= high. Your output is to match the example below: Don't forget flush <If you choose to code this, you may staple a printout, that includes this function, to the back>

5 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 5 long int RandNo (long int Low, long int High); 24] Both of the arguments in function RandNo are passed by _?_ {Value/Reference} 25] Function RandNo _?_ {Has/Does Not Have} an explicit return. void Quadratic (double A, double B, double C, double* Root1, double* Root2) 26] Arguments A, B, & C in function Quadratic are passed by _?_ {Value/Reference} 27] Arguments Root1 & Root2 in function Quadratic are passed by _?_ {Value/Reference} 28] Function Quadratic _?_ {Has/Does Not Have} an explicit return. Quadratic (1.0, -8.0, 15.0, &R1, &R2); 29] {T/F} When Function Quadratic is called in the line of code above, the compiler creates a double container [called A] and places 1.0 into that container. 30] {T/F} When Function Quadratic is called in the line of code above, the compiler creates a pointer to a double container [called Root1] and places the address of R1 into that container. 31] {T/F} At the end of Function Quadratic, the memory allocated for A, B, C, Root1, & Root2 is returned to the operating system for reuse. void FillIntArray (int Array[], int StartingNo, int NoElements) 32] Arguments StartingNo & NoElements in function FillIntArray are passed by _?_ {Value/Reference} 33] Argument Array in function FillIntArray is passed by _?_ {Value/Reference} 34] Function FillIntArray _?_ {Has/Does Not Have} an explicit return. 35] Arrays are always passed by _?_ {Value/Reference} void FillIntArrayRandom(int Array[], int Low, int High, int NoElements); int main (int argc, char * argv[]) { int Exams[25]; FillIntArrayRandom (Exams, 50, 100, 25);

6 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 6 36] Arguments Low, High, & NoElements in function FillIntArrayRandom are passed by _?_ {Value/Reference} 37] Argument Array in function FillIntArrayRandom is passed by _?_ {Value/Reference} 38] Function FillIntArrayRandom _?_ {Has/Does Not Have} an explicit return. printf("main--> sizeof(exams)= %ld\n", sizeof(exams)); 39] Write the output from the following line of code [main] above. printf("fillintarray--> sizeof(array)= %ld\n", sizeof(array)) 40] Write the output from the following line of code [FillIntArrayRandom] above ] Write the complete C/C++ of code for function FillIntArrayRandom. Pass your function Low, High, NoElements by value. Pass Array by reference. When finished, all of the elements of Array should contain the random numbers in the range Low <= x <= High <If you choose to code this, you may staple a printout, that includes this function, to the back> 51] Character Strings are always passed by _?_ {Value/Reference} 52-58] Write the block of C/C++ code to create a structure called Part.. Data members shall include Name 26 <If you choose to code this, you may staple a printout, that includes this function, to the back>

7 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 7 Part Mac; Set (&Mac, , "Macbook Pro", 4, 1, 'F', ); 59-68] Write the complete of C/C++ code to create function Set; when the code above is placed in main, all of the class data members will be filled. <If you choose to code this, you may staple a printout, that includes this function, to the back>

8 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 8 Part Mac; Set (&Mac, , "Macbook Pro", 4, 1, 'F', ); Display (&Mac, "My Macbook Pro:"); Display Cost 2 digits To Right Of Decimal Point 69-78] Write the complete of C/C++ code to create function Display; when the code above is placed in main, all of the class data members will be filled and then displayed exactly like the above right. <If you choose to code this, you may staple a printout, that includes this function, to the back>

9 OOP-1-Review-HW-(Part C).docx CSCI 2320 Initials P a g e 9 Part Mac, Dell; Get(&Mac, "Enter Data For The Mac:"); Get(&Dell, "Enter Data For The Dell:"); Display (&Mac, "My Macbook Pro:"); Display(&Dell, "My Dell Laptop:"); ] Write the complete of C/C++ code to create function Get; when the code above is placed in main, the user will be prompted to interactively fill the Part exactly as illustrated below. <If you choose to code this, you may staple a printout, that includes this function, to the back>