Tcl_AllowExceptions(3)Tcl Library ProcedureTcl_AllowExceptions(3)_________________________________________________________________NAMETcl_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 evalu-
ated.
_________________________________________________________________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 arbi-
trary 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 1
