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CentOS 7.0 - man page for tcl_allowexceptions (centos section 3)

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Tcl_AllowExceptions(3)		      Tcl Library Procedures		   Tcl_AllowExceptions(3)


       Tcl_AllowExceptions - allow all exceptions in next script evaluation

       #include <tcl.h>


       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 Tcl_VarEvalVA.

       However, if Tcl_AllowExceptions is invoked immediately before calling one of those a  pro-
       cedures,  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

Tcl					       7.4			   Tcl_AllowExceptions(3)
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