Tcl_AllowExceptions - allow all exceptions in next script evaluation
#include <tcl.h> Tcl_AllowExceptions(interp)
Tcl_AllowExceptions(3tcl) Tcl Library Procedures Tcl_AllowExceptions(3tcl)
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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 pend-
ing evaluation when the script is invoked), and if the script termi-
nates 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 proce-
dures 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 procedures, then arbitrary completion codes are permit-
ted 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
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | runtime/tcl-8 |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from http://prdownloads.sourceforge.net/tcl/tcl-
core8.6.7-src.tar.gz.
Further information about this software can be found on the open source
community website at https://www.tcl.tk/.
Tcl 7.4 Tcl_AllowExceptions(3tcl)