diff options
Diffstat (limited to 'doc/AddErrInfo.3')
| -rw-r--r-- | doc/AddErrInfo.3 | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/doc/AddErrInfo.3 b/doc/AddErrInfo.3 index d6580be..53f134a 100644 --- a/doc/AddErrInfo.3 +++ b/doc/AddErrInfo.3 @@ -119,7 +119,7 @@ retrieve the stack trace when script evaluation returns \fBTCL_ERROR\fR, like so: .PP .CS -int code = Tcl_Eval(interp, script); +int code = Tcl_EvalEx(interp, script, -1, 0); if (code == TCL_ERROR) { Tcl_Obj *options = \fBTcl_GetReturnOptions\fR(interp, code); Tcl_Obj *key = Tcl_NewStringObj("-errorinfo", -1); @@ -247,6 +247,9 @@ record instead of a value. Otherwise, it is similar to .PP \fBTcl_SetErrorCodeVA\fR is the same as \fBTcl_SetErrorCode\fR except that instead of taking a variable number of arguments it takes an argument list. +Interfaces using argument lists have been found to be nonportable in practice. +This function is deprecated and will be removed in Tcl 9.0. + .PP The procedure \fBTcl_GetErrorLine\fR is used to read the integer value of the \fB\-errorline\fR return option without the overhead of a full @@ -305,6 +308,22 @@ The global variables \fBerrorInfo\fR and \fBerrorCode\fR are not modified by \fBTcl_ResetResult\fR so they continue to hold a record of information about the most recent error seen in an interpreter. +.SH "REFERENCE COUNT MANAGEMENT" +.PP +The result of \fBTcl_GetReturnOptions\fR will have at least one +reference to it from the Tcl interpreter. If not using it immediately, +you should use \fBTcl_IncrRefCount\fR to add your own reference. +.PP +The \fIoptions\fR argument to \fBTcl_SetReturnOptions\fR will have a +reference added by the Tcl interpreter; it may safely be called with a +zero-reference value. +.PP +\fBTcl_AppendObjToErrorInfo\fR only reads its \fIobjPtr\fR argument; +it does not modify its reference count at all. +.PP +The \fIerrorObjPtr\fR argument to \fBTcl_SetObjErrorCode\fR will have a +reference added by the Tcl interpreter; it may safely be called with a +zero-reference value. .SH "SEE ALSO" Tcl_DecrRefCount(3), Tcl_IncrRefCount(3), Tcl_Interp(3), Tcl_ResetResult(3), Tcl_SetErrno(3), errorCode(n), errorInfo(n) |