MATLAB Function Reference    

Prevent M-file clearing



mlock locks the currently running M-file in memory so that subsequent clear functions do not remove it.

Use the munlock function to return the M-file to its normal, clearable state.

Locking an M-file in memory also prevents any persistent variables defined in the file from getting reinitialized.


The function testfun begins with an mlock statement.

When you execute this function, it becomes locked in memory. This can be checked using the mislocked function.

Using munlock, you unlock the testfun function in memory. Checking its status with mislocked shows that it is indeed unlocked at this point.

See Also

mislocked, munlock, persistent

  mkpp mod