Tcl_AllowExceptions

Tcl_AllowExceptions(3)      Tcl Library Procedures      Tcl_AllowExceptions(3)



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NAME
       Tcl_AllowExceptions - allow all exceptions in next script evaluation

SYNOPSIS
       #include <tcl.h>

       Tcl_AllowExceptions(interp)

ARGUMENTS
       Tcl_Interp   *interp      (in)      Interpreter in which script will be
                                           evaluated.
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DESCRIPTION
       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_CONTINUE or
       TCL_RETURN, then Tcl normally converts this into a TCL_ERROR return
       with an appropriate message.

       However, if Tcl_AllowExceptions is invoked immediately before calling a
       procedure such as Tcl_Eval, 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.


KEYWORDS
       continue, break, exception, interpreter



Tcl                                   7.4               Tcl_AllowExceptions(3)