I am working with the time difference calculation using the function To_Duration; but it is producing errors, as To_Duration is not in region of Real_Time. Pplease find the code snippet as below and Error shown below:
function Since_Start(Start_time: in Ada.Real_Time.Time;
End_time: in Ada.Real_Time.Time) return String is
begin
return Duration'Image(Ada.Real_Time.To_Duration(End_time - Start_time));
end Since_Start;
Error is as below:
To_Duration was not found in the region of Real_Time, Ignored future references.
Please let me know if any idea why this is not working. If I put the same code on online tools it is working fine.
Related
I am new to sage and have got a code (link to code) which should run.
I am still getting an error message in the decoding part. The error trace looks like this:
in decode(y)
--> sigma[i+1+1] = sigma[i+1]*(z)\
-(delta[i+1]/delta[mu+1])*z^(i-mu)*sigma[mu+1]*(z);
in sage.structure.element.Element.__mul__
if BOTH_ARE_ELEMNT(cl):
--> return coercion_model.bin_op(left, right, mul)
in sage.structure.coerce.CoercionModel_cache_maps.bin_op
--> action = self.get_action(xp,yp,op,x,y)
...... some more traces (don't actually know if they are important)
TypeError: positive characteristics not allowed in symbolic computations
Does anybody know if there is something wrong in this code snipped? Due to previous errors, I changed the following to get to where I am at the moment:
.coeffs() changed to .coefficients(sparse=False) due to a warning message.
in the code line sigma[i+1+1] = sigma[i+1](z)\
-(delta[i+1]/delta[mu+1])*z^(i-mu)*sigma[mu+1](z); where the error occurs, i needed to insert * eg. sigma[i+1]*(z)
I would be grateful for any guess what could be wrong!
Your issue is that you are multiplying things not of characteristic zero (like elements related to Phi.<x> = GF(2^m)) with elements of symbolic computation like z which you have explicitly defined as a symbolic variable
Phi.<x> = GF(2^m)
PR = PolynomialRing(Phi,'z')
z = var('z')
Basically, the z you get from PR is not the same one as from var('z'). I recommend naming it something else. You should be able to access this with PR.gen() or maybe PR(z).
I'd be able to be more detailed, but I encourage you next time to paste a fully (non-)working example; trying to slog through a big worksheet is not the easiest thing to track all this down. Finally, good luck, hope Sage ends up being useful for you!
If I use a built-in Sass function that returns an error, it will display the path of where it is used.
Using a built-in Sass function:
Code from _test.scss.
.foo {
color: darken(blue, s);
}
Will result in:
error _test.scss (Line 2: $amount: "s" is not a number for `darken')
Now, if I use a custom function that returns an error, it will display the path of where it is defined instead of where it is used.
Using a custom function:
Code from _test.scss.
.foo {
color: example(string);
}
Code from _functions.scss.
#function example($string) {
#error 'error message';
}
Will result in:
error core/utils/_functions.scss (Line 2: error message)
Is there any solution for solving this "issue"?
Your examples are similar only visually, underlying logic is completely different:
For built-in function Sass throws error by itself because code is not valid from Sass point of view.
Into second example you're throwing error because code is not valid from your point of view. Code itself if valid from Sass point of view in this case.
In both cases Sass displays same information about error location - a point into your codebase where error occurs. But in a case of your own, intentional error throwing actual point where error occurs actually matches a place where you're generating this error - exactly at a place where you have your #error directive. So there is no mistake into Sass behavior because it knows nothing about reasons why did you decide to throw an error.
You can always analyze stack trace that is displayed (at least by node-sass) along with error message to decide where did you get to point of error from. You can also use #debug to display context that may be useful for error analysis.
I apologize that I can not tell you what these functions are form the start.
I have a function CheckOutCell. It takes one argument and that is the number 764. So every time I run the function it looks like this in it's entirety: CheckOutCell(764).
Now many times the function will give me an error:
Error in checkInCell(764) :
The function is currently locked; try again in a minute.
Which is a custom error message and the details are not important to this question.
Now this function could be locked from anywhere from 30 seconds to an hour. I want to be able to automatically run CheckOutCell(764) till it goes through, and then stop running it. That is, run it till I do not get an error, then stop.
I think a start would be using
while(capture.output(checkInCell(764)) == "Error in checkInCell(764) :
The function is currently locked; try again in a minute."){
do something}
However this just produces
Error in checkInCell(764) :
The function is currently locked; try again in a minute.
because the function is still locked, so no output can be captured.
How would I test for while(error = T)
Assume the source code of the function cannot be modified.
Even is.error(CheckInCell(764)) will just produce the same error message
So it seems that this code works in a way
wrapcheck <- function(x){
repeatCheck =tryCatch(checkOutCell(764),
error = function(cond)"skip")
SudoCheck = ifelse(repeatCheck=="skip",repeatCheck, checkOutCell(764))
while(SudoCheck == "skip"){
repeatCheck
}
}
wrapcheck(764)
Basically this checks for an error and then keeps running the function till the error is not produced. In fact I am fairly confident that this would work with any funciton you wanted to put in place of CheckOutCell.
The main problem is that when the function is locked, that it not really an error, it is locked. Therefore this above block will not work. This above block will work when errors other than a lock are produced.
I have a problem with my code. It doesn't print out an error, it works but it doesn't do what I actually need it to do. I won't be posting all of the code because it is not needed, I will just post the line we need.
So I have this line of code:
TIME1=$( { time awkfun ; } 2>&1 >/dev/null);
Where awkfun is a function that should print 500 integers, and TIME1 is a variable to store the time that the function will need to run and print. Problem is that normally as I said the function would print around 500 integers in this occasion though that I am using this, it just runs and does the calculations but is not printing. So it actually runs the awkfun function but doesn't let it print, in the time output for this function I also need the time it needs to print everything.
How to do that?
I hope I explained it as good as possible, if any questions arise please don't hesitate to comment, thanks in advance!
P.S
Running in ksh in oracle solaris.
Here is the correct sequence. Adjust as needed:
TIME1=`time (awkfun > /dev/tty) 2>&1`
I'm creating an application with Google Closure Library and its Compiler. To debug values I use console.log(). Compiling this will throw the following exception JSC_UNDEFINED_VARIABLE. variable console is undeclared at .... To solve this error, I just had to use window.console.log() instead.
I also want to measure the time that a function takes. Firebug has two nice functions console.time(name) and console.timeEnd(name) to do that very easily. Unfortunately the Closure Compiler does not support these functions throwing the following warning JSC_INEXISTENT_PROPERTY. Property time never defined on Window.prototype.console at .... Unfortunately you cannot solve this warning with prepending window.
I also had a look at the library, but goog.debug.Console has not the function that I need.
Another solution I have used before was something like the following
var start = new Date();
// do something
var end = new Date();
// do some calculation to get the ms for both start and end
var startMS = ....;
var endMS = .....;
// get the difference and print it
var difference = (endMS - startMS) / 1000;
console.log('Time taken for something: ' + difference);
This is a little bit too much code, if you use it very often, and the version with the two functions would be great:
window.console.time("timeTaken");
// do something
window.console.timeEnd("timeTaken");
This prints out the MS between start and end. But as mentioned above, this doesn't work with the closure compiler. Does anyone have a solution for this, how I can use these two functions window.console.time() and window.console.timeEnd()? Or maybe another solution that goog.closure provides, but I haven't found?
You just need to added them to the externs you are using.
If you don't want to/can't use externs, you can easily reference "undeclared" objects with the string-based properties:
window['console']['log']('Hello Console!');
window['console']['time']('timeTaken');
...
But you have to be careful, because the second line might throw an error if the time property does not exist or it's not a function.