#include #pragma warning(disable : 4996) // needed in VS

#define subtract2(x) (-(x + x + x))

#define combMacro(a, b) (4 * a - b * a * a * b)

int combFunc(int a, int b) { return (4 * a - b * a * a * b); }

// Part 1: // We want to pass the value of 2 to Subtract2 and expect the result to be -2, why is the result 0? Correct the error (5 points) void part1(int x) { int result; result = subtract2(--x);

printf("subtract2(2) = %d ", result);

// Why did this error occur? Please provide the answer in your own words below. printf("Explanation: the subtract2 macro was not defined correctly. "); // (2.5 points) }

// Part 2: // We want to pass decremented values of x and y to the macro and function to compare their outputs in VS and GCC. // Run this program in Visual Studio(VS) and then again in GCC. Fill the blanks below with the output values for combFunc and combMacro. // Then correct/edit this function so that combFunc and combMacro produce same correct output of -28. // (5 points) // void part2(int x, int y) { int copy_x = x, copy_y = y; printf("combFunc(x, y) = %d combMacro(x, y) = %d ", combFunc(--x, --y), combMacro(--copy_x, --copy_y));

// Replace the 4 blank spaces below with the actual output observed when running the code in VS and GCC. // The blanks should have the answers of unedited program. Keep the answers in blanks as they were, after editing the program. printf("In VS : the result of combFunc = -28 and combMacro = __ "); // (5 points) printf("In GCC: the result of combFunc = -28 and combMacro = __ "); // (5 points)

// Explain in a short sentence why VS and GCC could possibly produce a different value for the same program and for the same input. printf("Explanation: _____ "); // (2.5 points) }

// Do not edit main() int main() { int x = 3, y = 4;

printf("Part 1: "); part1(x); printf("Part 2: "); part2(x, y);

while (1); // needed to keep console open in VS return 0; }

I just need help on part two!