diff options
Diffstat (limited to 'doc/error.n')
| -rw-r--r-- | doc/error.n | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/doc/error.n b/doc/error.n index 77391e5..d61bd7b 100644 --- a/doc/error.n +++ b/doc/error.n @@ -37,18 +37,21 @@ with the \fBcatch\fR command: if a caught error cannot be handled successfully, \fIinfo\fR can be used to return a stack trace reflecting the original point of occurrence of the error: +.PP .CS -\fBcatch {...} errMsg +catch {...} errMsg set savedInfo $::errorInfo \&... -error $errMsg $savedInfo\fR +\fBerror\fR $errMsg $savedInfo .CE +.PP When working with Tcl 8.5 or later, the following code should be used instead: +.PP .CS -\fBcatch {...} errMsg options +catch {...} errMsg options \&... -return -options $options $errMsg\fR +return -options $options $errMsg .CE .PP If the \fIcode\fR argument is present, then its value is stored @@ -58,15 +61,18 @@ of the error in cases where such information is available; see the \fBreturn\fR manual page for information on the proper format for this option's value. .SH EXAMPLE +.PP Generate an error if a basic mathematical operation fails: +.PP .CS if {1+2 != 3} { \fBerror\fR "something is very wrong with addition" } .CE - .SH "SEE ALSO" catch(n), return(n) - .SH KEYWORDS -error +error, exception +'\" Local Variables: +'\" mode: nroff +'\" End: |