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kandi X-RAY | toot Summary
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QUESTION
I am trying to run a function, int testfn
below, which should assign a complex number to the pointer (to a complex number), double _Complex *foo
below, that it is fed. The minimal (non-working) example .c file is test.c
below.
When I call testfn
through main
, instead of returning the assigned value 1.0 + 0.5*I
, it returns 0.0 + 0.0*I
. I do not understand why, or how to fix it.
ANSWER
Answered 2021-Dec-30 at 13:42Test1
Two problems.
foo
is a local variable. When you assign it it only will be valid in the function scope.foobar
is a local variable and it cannot be accessed after the function return (as it stops to exist)
You need to make foobar
exist after the function return and pass the reference to the pointer.
QUESTION
So to make it simple i want to make a responsive nav-bar using only html and css but ive encountered a problem, i trying to use a checkbox to make a hamburger menu so when i click it it will display the nav bar below it but when i click the checked state apparently dont work
HTML
...ANSWER
Answered 2021-Nov-06 at 02:11try adding !important
QUESTION
How to find the nearest square root of number?
- If square root present then I need the exact square toot, otherwise the previous of square root.
Example is below:
squre_root(101) = 10
squre_root(100) = 10
Approach
- Find the mid number of square root to find
- for
101
: find the mid, that is51
- since
51 * 51 <= 101
then51
will be divided by half - Like at last by binary search I will get
10
Sample Code :
...ANSWER
Answered 2021-Aug-17 at 03:11I have translated the psuedo-code from here
QUESTION
I'm trying to perform bulk extracts/loads from Oracle to MySQL using cx_Oracle and SQL Alchemy.
I found this example online and it works well for most data types, but fails from Blob data types:
https://vbaoverall.com/transfer-data-from-oracle-to-mysql-using-sqlalchemy-python/
I have about 43 tables and about 12 of them have BLOB
data types.
ANSWER
Answered 2021-Jun-09 at 18:11Thanks to @Gord Thompson, I found out I just needed to specify dtype=
QUESTION
I am trying to update my laravel project by replacing image with a new one, but for some reason it is not working. When i make a new posts, images that i added show up, but when i update image it does not change. Image file also does not show up in laravel folder when i update my image post. I am using laravel 8.
PRODUCTSCONTROLLER.PHP
...ANSWER
Answered 2021-Feb-28 at 18:37You have to add the enctype
attribute to your update form
with the value of multipart/form-data
to allow files upload (images in your case), you'll have something like
...
QUESTION
I have an class:
...ANSWER
Answered 2020-Jul-02 at 10:07You don't.
(because it is not possible to do it reliably, the answer in your link is nice, but it only works with pointers which is quite a restriction)
Either you want the derived method to be the same as the one in the base, then you don't declare it as virtual, or...
If you want the derived classes to extend a base class methods functionality then you can use the so-called Template Method Pattern:
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