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Tcl File Error


Training, Open Source Programming Languages Perl • Learning to Program in Perl Perl Programming Special Perl subjects / courses PHP • Learning to Program in PHP PHP Programming Special PHP subjects The -ttystatus option can only be queried. Finally, it's generally good practice to put the conditions in if statements within braces {...}; that will defer evaluation until the if statement is executed; as written, the condition will be A BREAK is sometimes used to reset the communications line or change the operating mode of communications hardware. have a peek here

Not the answer you're looking for? catch.html • PAGE BUILT: Sat Jun 11 12:16:26 2016 • BUILD SYSTEM: WomanWithCat NAME SYNOPSIS DESCRIPTION COMMAND PIPELINES SERIAL COMMUNICATIONS SERIAL PORT SIGNALS ERROR CODES DTR(output) Data Terminal Ready: This signal tells the modem that the workstation is ready to establish a link. Otherwise it is 1.

Tcl Catch Example

If the file does not exist, create a new empty file. This behavior occurs whether the command pipeline is executing 16-bit or 32-bit applications. This affects the time interval between checking for events throughout the Tcl interpreter (the smallest value always wins).

The baud rate is a simple integer that specifies the connection speed. Description editcatch is used to intercept the return code from the evaluation of script, which otherwise would be used by the interpreter to decide how to proceed: Whether an error occurred, finally ...kbk 2000-12-14: A pure-Tcl implementation of a Java-style try construct, along with a worked example of catching break, continue, error, return.ucatchDeunicodifies the error message. Tcl Throw Error catch returns a different non-zero numeric code for each of them.

The break condition, generated by the break command. Tcl Error Handling Proving integral is zero How do I politely decline a research grant? The exact behavior of this flag is system- and device-dependent; its use is discouraged (it is better to use the fconfigure command to put a file in nonblocking mode). Command pipelines that do not execute 16-bit DOS applications run asynchronously and can be opened for both reading and writing.

Truncate it if it exists. Tcl Errorinfo current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. If info or code are provided, the errorInfo and errorCode variables are initialized with these values. This error should practically not happen, because Tcl cares about the output buffer status.

Tcl Error Handling

So commenting out this set_property won't harm anything provided you don't change the extension from .bmm.Again, my apologies - I hope this will be corrected for you in 2014.3 Greg DaughtryVivado Signal 1 (SIGHUP) is the hangup signal, sent when a dial up or network connection is dropped. Tcl Catch Example catch { timeout 30 { lassign [server_open $host $port] read write } } Keith WaclenaThe University of Chicago Library This page last updated: Thu Aug 25 13:28:18 CDT 1994 This page Tcl Error Command The result is unpredictable.

If it is 0, it's because the file couldn't be opened on any of the servers, so I will just treat the call as if it's a working (non-holiday) day. http://colinmeldrum.com/tcl-error/tcl-error-f5.html Also see UNIX only exec wrapper.On comp.lang.tcl, Ulrich Schoebel shows this as an example of how to get at the exit code of a command being exec'd in Tcl:if {[catch {exec APPEND Set the file pointer to the end of the file prior to each write. Your cache administrator is webmaster. Tcl Try Catch Example

w+ Open the file for reading and writing. You can turn off the stack trace with the -n argument to the megatcl (or Extended Tcl) interpreter: $ megatcl -n -c "while 1 {if 1 {set foo}}" Error: can't read The continue condition, generated by the continue command. http://colinmeldrum.com/tcl-error/tcl-error-in-file-eggdrop-conf.html Are two standard normal random variables always independent?

Data is the number of data bits and should be an integer from 5 to 8, while stop is the number of stop bits and should be the integer 1 or Tcl Catch Exec Example proc errorproc {x} { if {$x > 0} { error "Error generated by error" "Info String for error" $x } } catch errorproc puts "after bad proc call: ErrorCode: $errorCode" Here is the modified code which does the same:set resource [some allocator] if {[set result [catch {some code with $resource} resulttext resultoptions]]} { # free the resource, ignore nested errors catch

proc myset {var value} { uplevel set $var $value } uplevel is used to create new control structures; most Tcl commands that take a Tcl scipt as an argument need to

Evaluates and executes script. This option cannot be queried. -ttycontrol {signal boolean signal boolean ...} (Windows and Unix). For software handshake xonxoff the handshake characters can be redefined with -xchar. Tcl Error Code arg ...

Andrew Message 1 of 6 (6,548 Views) Reply 0 Kudos Accepted Solutions daughtry Xilinx Employee Posts: 160 Registered: ‎03-24-2008 Re: Error when sourcing generated project tcl file with BMM file Options Should I make a procedure and return values like -1? Description editGenerates an error with the specified message. this contact form An attempt to open a serial port that does not exist or has a number greater than 9 will fail.

The external device may have been switched off, the data lines may be noisy, system buffers may overrun or your mode settings may be wrong. EXCL If CREAT is also specified, an error is returned if the file already exists. Generated Wed, 07 Dec 2016 23:08:49 GMT by s_hp84 (squid/3.5.20) This problem only occurs because both Tcl and the child application are competing for the console at the same time.

Thanks. Generates a return exception condition. Most useful knowledge from the 30's to understand current state of computers & networking? PORTABILITY ISSUES Windows (all versions) Valid values for fileName to open a serial port are of the form comX:, where X is a number, generally from 1 to 4.

How can you distinguish them? timeout uses the SIGALRM alarm signal. You can program with Unix signals via the Extended Tcl signal command. Advanced configuration options are only supported for serial ports when Tcl is built to use the POSIX serial interface.

If supplied, info is used to seed the errorInfo value, and code becomes the errorCode, which is otherwise NONE.error is short for return -level 0 -code error, which is not the Where is it established that Hikaru Sulu was born in San Francisco? All the same, OP would be the one who would know what kind of error would be caught, so I won't put it in the answer, but OP can always use Normally the operating system default should be DC1 (0x11) and DC3 (0x13) representing the ASCII standard XON and XOFF characters. -pollinterval msec (Windows only).

idlist The Extended Tcl kill command allows you to send Unix signals to other processes (including yourself). even in the middle of a program running. Unix Signals Unix signals are similar to Tcl exceptions, in that they are received asynchronously and can be trapped or allowed to have their default behavior. command is executed in the global context; an occurrence of the string %S in command will be replaced with the signal name (use %% to get a percent sign); get, which

The data comes faster than the system driver receives it. Catching Errors In addition to generating errors, you can also catch, or trap, them. The -handshake option cannot be queried. -queue (Windows and Unix). This can help you find exactly where the error occurred: $ megatcl -c "while 1 {if 1 {set foo}}" Error: can't read "foo": no such variable can't read "foo": no such