Tcl/Tk Documentation > TclLib > SetRecLmt
- Tcl_Interp *interp (in)
- Interpreter whose recursion limit is to be set. Must be greater than zero.
- int depth (in)
- New limit for nested calls to Tcl_Eval for interp.
Tcl_SetRecursionLimit may be used to change the maximum allowable nesting depth for an interpreter. The depth argument specifies a new limit for interp, and Tcl_SetRecursionLimit returns the old limit. To read out the old limit without modifying it, invoke Tcl_SetRecursionLimit with depth equal to 0.
The Tcl_SetRecursionLimit only sets the size of the Tcl call stack: it cannot by itself prevent stack overflows on the C stack being used by the application. If your machine has a limit on the size of the C stack, you may get stack overflows before reaching the limit set by Tcl_SetRecursionLimit. If this happens, see if there is a mechanism in your system for increasing the maximum size of the C stack.nesting depth, recursion