Home > Tcl Error > Tcl Error Invalid Bareword# Tcl Error Invalid Bareword

## Tcl Expr

## Tcl Convert String To Number

## true : false invalid bareword "abc" % expr {$a eq "foo" ?

## Contents |

Resources Join | **Indeed Jobs | Advertise Copyright ©** 1998-2016 ENGINEERING.com, Inc. asked 1 year ago viewed 183 times active 1 year ago Linked 10 Why do Tcler suggest to brace your `expr`essions? 1 Why does expr “i==i” fail with “invalid bareword”? Related 1how to use the global string value in tcl expression10Why do Tcler suggest to brace your `expr`essions?1Why does expr “i==i” fail with “invalid bareword”?0TCL : why expr not evaluating the DebuggingExprCalls explains how to wrap expr to help with these cases.double substitutionexprlex and funclexSplit expressions and functions into their lexical components.Floating-point formattingincluding how to format a floating point value without causing Source

If expr has to concatenate its arguments (i.e. because code is being evaluated outside the scope in which it was created. I wonder what is going on? Testing includes both checking that the code runs at all, that it runs correctly under all circumstances, and that it runs the same way it did before you made changes.

You can examine variables, define and run procedures and more, as shown below. Embed tkcon You can embed tkcon into your application regardless of the run-time platform. Who sent the message?

eq ne Since Tcl 8.4, these are string-comparison operators. "6" and "06", as well as 1 and 1.0, will compare unequal. ** exponential. A bit is set in the result when the corresponding bit is set in both the arguments. ^ Bit-wise exclusive OR. Floating-Point Arithmetic editexpr uses floating point arithmetic, so strings representing decimal fractions that don't have a precise floating-point representation will be given to a close-enough representation. Tcl Integer Functions editSee the mathfunc man page.The following is a list of builtin functions:abs(x)Absolute value (negate if negative).acos(x)Inverse cosine (result in radians).asin(x)Inverse sine (result in radians).atan(x)Inverse tangent (result in radians).atan2(y,x)Inverse tangent.

true : false} false Brace Your Expressions for Performance editWhen exactly one unconcatenated value is passed to expr, the argument can be compiled to bytecode, which is much more efficient. "Unconcatenated" Tcl Convert String To Number asked 3 years ago viewed 1181 times active 1 year ago Get the weekly newsletter! Precision editdavou: What is the precision of functions in expr, and how can it be expanded upon?Lars H: That's generally determined by the C library functions that implement them. x?y:z If-then-else, as in C.

See below for more details.expr expressions differ from C expressions in the way that operands are specified. Tcl Math Functions For real numbers, that means doubles, which are floating-point numbers of typically about 17 decimal digits precision (but how many of these are correct varies between functions and platforms). This is two operands ($a and $b) and an operator (eq): expr can work with this. Where Tcl seems not to be behaving as describe here, see double substitution.

Use the source command to load a modified procedure and repeat whatever caused the error. http://www.cwflynt.com/CS146SecLab/debug/Debug.htm Join them; it only takes a minute: Sign up ‘Invalid bare word “regexp”’ in Tcl script up vote 0 down vote favorite proc mulval { addr } { if {regexp {^([2][2-3][0-9])\.+(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-])\.+(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.+(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])$} Tcl Expr Tcl optimizations always favor correctness over speed, so this shortcut is not available.Here's the above again, but with local variables which provide a large speed boost by avoiding looking up the Tcl Modulo Related 10Why do Tcler suggest to brace your `expr`essions?0TCL : Why expr manipulating the numbers bigger than 0xffffffff without telling to the interpretor it is a long?0expr is giving unexpected results0Why

Page Authors editAMGPYKArts and crafts of Tcl-Tk programmingTcl syntaxCategory CommandCategory MathematicsTcl HomeRecent changesHelpWhoAmI/LogoutCreate new pageRandom pagePrevious pageNext pageAdd commentsEditHistoryEdit summaryReferences Page contents SeeAlso Documentation Synopsis Description Usage Operators Functions MathematicalExpressions OrderofPrecedence If there is a string that isn't a boolean value or the name of an operator in an expr expression, it should be part of a variable substitution ($abc), or the I had to apply scan $var %d to get rid of the leading zeroes - as would be explicitly necessary in every typed language... separate [commands] (Tcl 8.4 and older) 32-bit integer limitations editAddition% expr (1<<31)-1 2147483647 % expr 2147483647 + 2147483647 -2Multiplication% expr sqrt((1<<31)-1) 46340.9500011 expr 46341*46341 -2147479015These are results of Tcl 8.4 and Tcl Addition

This is most often caused by mis-typing a command name, or forgetting to source or package require the Tcl code that defines a command or procedure. You seem to have CSS turned off. Isn't that the condition expression in if command same as the expression in expr command? have a peek here However, for date arithmetic, nothing beats clock.# adding a delta to a time set h1 12; set m1 45 set h2 3; set m2 30 clock format [clock add [clock scan

However, older versions of dot seemed to produce this ordering in their output files. Tcl Modulus x to the power of y.rand()Random number. OK. [09:45:34] mEL 2.0 - mel exists and is a directory...

kimo · May 24, 2013 at 11:54 PM 0 Share There is no output attribute from WordWrap, "wrapped" does not appear. And Tcl doesn't do complex math, so the input had better be positive).srand(x)Seeds the random number generator with the given value. But you shouldn't use regular expressions to validate IP numbers. Tcl Float To Int set x {[exec format C:\\]} set j {[puts Sucker!]} #C:\ get formatted in the next command set k [expr $x / $j.]On the other hand,set k [expr { $x / double($j)

and then repeat it for the hours. It's a Tcl syntax problem. asked 1 year ago viewed 458 times active 1 year ago Get the weekly newsletter! You see $a eq $b, expr sees abc eq abcd.

Each argument is itself a complete expression.Each argument is itself a Tcl expression. IA bit more work is required to make it general enough to replace WordWrap in the store I did try to read in a published parameter to avoid hardcoding the width The following commands both result in correct expressions:expr {$color eq $color2} ;# -> 1 expr {$color1} eq {$color2} ;# -> 1But if the arguments are not bracketed, there's a syntax error:Another Cancel Red Flag SubmittedThank you for helping keep Tek-Tips Forums free from inappropriate posts.The Tek-Tips staff will check this out and take appropriate action.

What register size did early computers use What's most important, GPU or CPU, when it comes to Illustrator? Join UsClose Spinroot A forum for Spin users Index User list Rules Search Register Login You are not logged in. I cannot see a way of escaping the substring. Limited by the size of long in C.isqrt(x)Compute the integer part of the square root of x.log(x)Natural logarithm.log10(x)Logarithm with respect to base 10.max(x,...)The argument with the greatest value.min(x,...)The argument with the

Last edit: Zangune 2015-08-20 If you would like to refer to this comment somewhere else in this project, copy and paste the following link: SourceForge About Site Status @sfnet_ops Powered by Was the term "Quadrant" invented for Star Trek Separate namespaces for functions and variables in POSIX shells Pythagorean Triple Sequence Why does Deep Space Nine spin? Nevertheles...With unbraced expressions, . (\x2e) can be appended to a variable to get expr to interpret the value as a float, but double() is a better alternative:set x 1; set j The pressure-volume work in thermodynamics Number sets symbols in LaTeX Why is the size of my email so much bigger than the size of its attached files?

This operation is a short-circuiting operation, and will only evaluate its second argument when the first argument is zero. can be used directly, without enclosing it in quotes or braces.The operators permitted in Tcl expressions include most of the operators permitted in C expressions and a few additional ones. Which towel will dry faster?

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