perimeter.cpp File Reference

Implementations for the perimeter of various shapes. More...

#include <cassert>
#include <cmath>
#include <cstdint>
#include <iostream>

Include dependency graph for perimeter.cpp:

Go to the source code of this file.

Namespaces
namespace	math
	for assert

Functions
template<typename T >
T	math::square_perimeter (T length)
	perimeter of a square (4 * l)
template<typename T >
T	math::rect_perimeter (T length, T width)
	perimeter of a rectangle ( 2(l + w) )
template<typename T >
T	math::triangle_perimeter (T base, T height, T hypotenuse)
	perimeter of a triangle (a + b + c)
template<typename T >
T	math::circle_perimeter (T radius)
	perimeter of a circle (2 * pi * r)
template<typename T >
T	math::parallelogram_perimeter (T base, T height)
	perimeter of a parallelogram 2(b + h)
template<typename T >
T	math::cube_surface_perimeter (T length)
	surface perimeter of a cube ( 12
template<typename T >
T	math::n_polygon_surface_perimeter (T sides, T length)
	surface perimeter of a n-polygon ( n * l)
template<typename T >
T	math::cylinder_surface_perimeter (T radius, T height)
	surface perimeter of a cylinder (2 * radius + 2 * height)
static void	test ()
	Self-test implementations.
int	main ()
	Main function.

Detailed Description

Implementations for the perimeter of various shapes.

The of a shape is the amount of 2D space it takes up. All shapes have a formula for their perimeter. These implementations support multiple return types.

Author

OGscorpion

Definition in file perimeter.cpp.

Macro Definition Documentation

_USE_MATH_DEFINES

#define _USE_MATH_DEFINES

Definition at line 11 of file perimeter.cpp.

Function Documentation

main()

int main

(

void

)

Main function.

Returns

0 on exit

Definition at line 284 of file perimeter.cpp.

           {
    test();  // run self-test implementations
    return 0;
}

test()

static void test ( )

static

Self-test implementations.

Returns

void

Definition at line 120 of file perimeter.cpp.

                   {
    // I/O variables for testing
    uint16_t int_length = 0;      // 16 bit integer length input
    uint16_t int_width = 0;       // 16 bit integer width input
    uint16_t int_base = 0;        // 16 bit integer base input
    uint16_t int_height = 0;      // 16 bit integer height input
    uint16_t int_hypotenuse = 0;  // 16 bit integer hypotenuse input
    uint16_t int_sides = 0;       // 16 bit integer sides input
    uint16_t int_expected = 0;    // 16 bit integer expected output
    uint16_t int_perimeter = 0;   // 16 bit integer output
 
    float float_length = NAN;     // float length input
    float float_expected = NAN;   // float expected output
    float float_perimeter = NAN;  // float output
 
    double double_length = NAN;     // double length input
    double double_width = NAN;      // double width input
    double double_radius = NAN;     // double radius input
    double double_height = NAN;     // double height input
    double double_expected = NAN;   // double expected output
    double double_perimeter = NAN;  // double output
 
    // 1st test
    int_length = 5;
    int_expected = 20;
    int_perimeter = math::square_perimeter(int_length);
 
    std::cout << "perimeter OF A SQUARE (int)" << std::endl;
    std::cout << "Input Length: " << int_length << std::endl;
    std::cout << "Expected Output: " << int_expected << std::endl;
    std::cout << "Output: " << int_perimeter << std::endl;
    assert(int_perimeter == int_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 2nd test
    float_length = 2.5;
    float_expected = 10;
    float_perimeter = math::square_perimeter(float_length);
 
    std::cout << "perimeter OF A SQUARE (float)" << std::endl;
    std::cout << "Input Length: " << float_length << std::endl;
    std::cout << "Expected Output: " << float_expected << std::endl;
    std::cout << "Output: " << float_perimeter << std::endl;
    assert(float_perimeter == float_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 3rd test
    int_length = 4;
    int_width = 7;
    int_expected = 22;
    int_perimeter = math::rect_perimeter(int_length, int_width);
 
    std::cout << "perimeter OF A RECTANGLE (int)" << std::endl;
    std::cout << "Input Length: " << int_length << std::endl;
    std::cout << "Input Width: " << int_width << std::endl;
    std::cout << "Expected Output: " << int_expected << std::endl;
    std::cout << "Output: " << int_perimeter << std::endl;
    assert(int_perimeter == int_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 4th test
    double_length = 2.5;
    double_width = 5.7;
    double_expected = 16.4;
    double_perimeter = math::rect_perimeter(double_length, double_width);
 
    std::cout << "perimeter OF A RECTANGLE (double)" << std::endl;
    std::cout << "Input Length: " << double_length << std::endl;
    std::cout << "Input Width: " << double_width << std::endl;
    std::cout << "Expected Output: " << double_expected << std::endl;
    std::cout << "Output: " << double_perimeter << std::endl;
    assert(double_perimeter == double_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 5th test
    int_base = 10;
    int_height = 3;
    int_hypotenuse = 5;
    int_expected = 18;
    int_perimeter =
        math::triangle_perimeter(int_base, int_height, int_hypotenuse);
 
    std::cout << "perimeter OF A TRIANGLE" << std::endl;
    std::cout << "Input Base: " << int_base << std::endl;
    std::cout << "Input Height: " << int_height << std::endl;
    std::cout << "Expected Output: " << int_expected << std::endl;
    std::cout << "Output: " << int_perimeter << std::endl;
    assert(int_perimeter == int_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 6th test
    double_radius = 6;
    double_expected =
        37.69911184307752;  // rounded down because the double datatype
                            // truncates after 14 decimal places
    double_perimeter = math::circle_perimeter(double_radius);
 
    std::cout << "perimeter OF A CIRCLE" << std::endl;
    std::cout << "Input Radius: " << double_radius << std::endl;
    std::cout << "Expected Output: " << double_expected << std::endl;
    std::cout << "Output: " << double_perimeter << std::endl;
    assert(double_perimeter == double_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 7th test
    int_base = 6;
    int_height = 7;
    int_expected = 26;
    int_perimeter = math::parallelogram_perimeter(int_base, int_height);
 
    std::cout << "perimeter OF A PARALLELOGRAM" << std::endl;
    std::cout << "Input Base: " << int_base << std::endl;
    std::cout << "Input Height: " << int_height << std::endl;
    std::cout << "Expected Output: " << int_expected << std::endl;
    std::cout << "Output: " << int_perimeter << std::endl;
    assert(int_perimeter == int_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 8th test
    double_length = 5.5;
    double_expected = 66.0;
    double_perimeter = math::cube_surface_perimeter(double_length);
 
    std::cout << "SURFACE perimeter OF A CUBE" << std::endl;
    std::cout << "Input Length: " << double_length << std::endl;
    std::cout << "Expected Output: " << double_expected << std::endl;
    std::cout << "Output: " << double_perimeter << std::endl;
    assert(double_perimeter == double_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 9th test
    int_sides = 7;
    int_length = 10;
    int_expected = 70;
    int_perimeter = math::n_polygon_surface_perimeter(int_sides, int_length);
 
    std::cout << "SURFACE perimeter OF A N-POLYGON" << std::endl;
    std::cout << "Input Sides: " << int_sides << std::endl;
    std::cout << "Input Length: " << int_length << std::endl;
    std::cout << "Expected Output: " << int_expected << std::endl;
    std::cout << "Output: " << int_perimeter << std::endl;
    assert(int_perimeter == int_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
 
    // 10th test
    double_radius = 4.0;
    double_height = 7.0;
    double_expected = 22.0;
    double_perimeter =
        math::cylinder_surface_perimeter(double_radius, double_height);
 
    std::cout << "SURFACE perimeter OF A CYLINDER" << std::endl;
    std::cout << "Input Radius: " << double_radius << std::endl;
    std::cout << "Input Height: " << double_height << std::endl;
    std::cout << "Expected Output: " << double_expected << std::endl;
    std::cout << "Output: " << double_perimeter << std::endl;
    assert(double_perimeter == double_expected);
    std::cout << "TEST PASSED" << std::endl << std::endl;
}