How to implement a continue/return/skip current step in simulink?

How do I emplement equivalent of the following matlab in simulink

if(b == 0)
    return % Skip Current Step and output previous value of c
else
    c = a / b;  % Output New value of c
end

if(v < 0 | i < 0)
    return % Skip Current Step if voltage is negative
else
    p = v / i;  % Output New value of c
end

[Murali Sriram]

You can try out the If-Then-Else block of simulink along with enabled subsystem block.

For your reference : https://www.mathworks.com/help/simulink/slref/if-then-else-blocks.html

https://www.mathworks.com/help/simulink/slref/enabledsubsystem.html

[Ishaan]

Thanks your suggestion worked.