Break nested loop and go to a specific line

My code has the following sturcture. Inside the nested loop I want to break the loop & want to go Statement 1 & Statement 3.

. . .

. . .

. . .

for index = values

Statement 1

Statement 2

Statement 3

Statement 4

if expression

. . .

if expression

[Go to Statement 1]

else expression

[Go to Statement 3]

. . .

. . .

. . .

I have added the lines to clarify further.

Answer 1

[Walter Roberson]

That is not possible in MATLAB, and will never be possible in MATLAB.

You need a framework something like this

repeat_1 = true;

while repeat_1
    repeat_1 = false;
    Statement 1
    Statement 2
    repeat_3 = true;
    
    while repeat_3
        repeat_3 = false;
        Statement 3
        Statement 4
        if expression1
            if expression2
                repeat_1 = true;
                break;
            else
               repeat_3 = true;
               continue;
            end
        end
        if ~repeat_3
            statements after tests that are to be skipped if you GOTO Statement 3
        end
    end
    if ~repeat_1
        statements after tests that are to be skipped if you GOTO Statement 1
    end
end

[Syed Arafun Nabi]

Thanks for your guidance.

I din not understand these portions

"if ~repeat_3

statements after tests that are to be skipped if you GOTO Statement 3

end"

I am going back to my initial structure again to understand your codes-

for index = values

Statement 1

Statement 2

Statement 3

Statement 4

if expression1

. . .

if expression2

[Go to Statement 1]

else expression3

[Go to Statement 3]

. . . Extra C

. . . Extra B

. . . Extra A

Can you please mention which lines are to be skipped if you GOTO Statement 3? Is it the addtional lines that exists in the flow chart below statemet 3 (Extra C)? If not can you mention in the inital flow chart?

[Walter Roberson]

repeat_1 = true;

while repeat_1
    repeat_1 = false;
    Statement 1
    Statement 2
    repeat_3 = true;
    
    while repeat_3
        repeat_3 = false;
        Statement 3
        Statement 4
        if expression1
            if expression2
                repeat_1 = true;
                break;
            else
               repeat_3 = true;
               continue;
            end
            Extra C
        end
        if ~repeat_3
            Extra B
        end
    end
    if ~repeat_1
        Extra A
    end
end

However this will warn you that Extra C is unreachable.

[Syed Arafun Nabi]

Thank you. It helps a lot to solve the flow chart.