(1) Set-up and implementation code for a value-returning bool function Equals Yo
ID: 3937800 • Letter: #
Question
(1) Set-up and implementation code for a value-returning bool function Equals
You are not required to write a complete C++ program but must write your responses to the specific function related questions below:
QA1: Write the heading for a value-returning bool function called Equals that has two value float parameters, x and y. Document the data flow of the parameters with appropriate comments*.
QA2: Write the function prototype for the function in QA1.
QA3: Write the function definition of the function in QA1 so that it compares x and y, returning true if their difference is less than 0.000000001, and false otherwise.
QA4: Add comments to the function definition* you wrote in QA3 that also states its precondition and postcondition.
Explanation / Answer
QA1 : bool Equals(float x, float y)
Above is the function header . Data flow is pass by values that means even after calling above function ,values of actual parameters in calling function are unchanged.
QA2: bool Equals(float x, float y);
QA4:
/*
function name: Equals
parameters : float x, float y
description:
This function compares value of x and y . if their difference is less than 0.000000001 then return 1(true) or 0(false).
return type: bool
*/
Q3:
bool Equals(float x, float y) {
if ( ((x - y) < 0.000000001) || ((y - x) < 0.000000001))
return TRUE;
else
return FALSE;
}
QA2:
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