Convert C++ Code to Matlab Code with MATLAB 2019a

I have large files that I would like to convert from C++ to Matlab code. Previous responses on MATLAB Answers indicate that this must be done manually, but is this still the case for the most recent version of MATLAB?

Answer 1

[David Fink]

If your overall goal is to convert C++ code to MATLAB code, yes, manual conversion is still required in R2019a.

However, if you only need to call the C++ code from MATLAB, simpler solutions are possible (in older releases as well as R2019a):

Option A: create a MEX file via MATLAB Coder (using MATLAB Coder on a simple M file that just calls the C++ function using coder.cinclude and coder.ceval) - see the last comment on a similar question.

Option B: create a MEX file via the MEX command (you will need to write a MEX wrapper for the C++ code). More information can be found on this documentation page.

Answer 2

[Venkatesh Khemlapure]

#include <iostream>

using namespace std;

int getMax(int arr[], int n)

{

int mx = arr[0];

for (int i = 1; i < n; i++)

if (arr[i] > mx)

mx = arr[i];

return mx;

}

void countSort(int arr[], int n, int exp)

{

int output[n];

int i, count[10] = { 0 };

for (i = 0; i < n; i++)

count[(arr[i] / exp) % 10]++;

for (i = 1; i < 10; i++)

count[i] += count[i - 1];

for (i = n - 1; i >= 0; i--) {

output[count[(arr[i] / exp) % 10] - 1] = arr[i];

count[(arr[i] / exp) % 10]--;

}

for (i = 0; i < n; i++)

arr[i] = output[i];

}

void radixsort(int arr[], int n)

{

int m = getMax(arr, n);

for (int exp = 1; m / exp > 0; exp *= 10)

countSort(arr, n, exp);

}

void print(int arr[], int n)

{

for (int i = 0; i < n; i++)

cout << arr[i] << " ";

}

int main()

{

int arr[] = { 170, 45, 75, 90, 802, 24, 2, 66 };

int n = sizeof(arr) / sizeof(arr[0]);

radixsort(arr, n);

print(arr, n);

return 0;

}

Answer 3

[Asad]

#include <stdio.h>


int main(int argc, char const *argv[])
{
    
int M1x, M1y, M2x, M2y;

printf("Enter Matrix 1 x and y with a space in between: ");
scanf("%d %d", &M1x, &M1y);
printf("Enter Matrix 2 x and y with a space in between: ");
scanf("%d %d", &M2x, &M2y);

int M1[M1x][M1y];
int M2[M2x][M2y];
int MatOut[50][50];

for (int x1 = 0; x1 < M1x; x1++)
    {
        for (int y1 = 0; y1 < M1y; y1++)
        {
            printf("Enter Matrix 1[%d][%d]: ", x1 + 1, y1 + 1);
            scanf("%d", &M1[x1][y1]);
            }
        }
        printf("\nMatrix 1 is:\n");
        for (int x1 = 0; x1 < M1x; x1++)
            {
                for (int y1 = 0; y1 < M1y; y1++)
                {
                    printf("%d ", M1[x1][y1]);
                    }
                printf("\n");
                }
                printf("\n");
                
                for (int x2 = 0; x2 < M2x; x2++)
                    {
                        for (int y2 = 0; y2 < M2y; y2++)
                        {
                            printf("Enter Matrix 2[%d][%d]: ", x2 + 1, y2 + 1);
                            scanf("%d", &M2[x2][y2]);
                            }
                        }
                        printf("\nMatrix 2 is:\n");
                        for (int x2 = 0; x2 < M2x; x2++)
                            {
                                for (int y2 = 0; y2 < M2y; y2++)
                                {
                                    printf("%d ", M2[x2][y2]);
                                    }
                                printf("\n");
                                }
                                printf("\n");
                                
                                
                                
                                return 0;
                                }

[Walter Roberson]

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