Tcl_AllowExceptions - allow all exceptions in next script evaluation
- Tcl_Interp *interp (in)
- Interpreter in which script will be evaluated.
If a script is evaluated at top-level (i.e. no other scripts are pending
evaluation when the script is invoked), and if the script terminates with a
completion code other than TCL_OK, TCL_ERROR or
TCL_RETURN, then Tcl normally converts this into a TCL_ERROR
return with an appropriate message. The particular script evaluation
procedures of Tcl that act in the manner are Tcl_EvalObjEx,
Tcl_EvalObjv, Tcl_Eval, Tcl_EvalEx,
Tcl_GlobalEval, Tcl_GlobalEvalObj, Tcl_VarEval and
However, if Tcl_AllowExceptions is invoked immediately
before calling one of those a procedures, then arbitrary completion codes
are permitted from the script, and they are returned without modification.
This is useful in cases where the caller can deal with exceptions such as
TCL_BREAK or TCL_CONTINUE in a meaningful way.
continue, break, exception, interpreter