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Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
...al checks whether the value is missing. If the value is missing, a runtime error occurs. As a result, you should always check and unwrap an implicitly unwrapped optional yourself, unless you are sure that the value cannot be missing.
...and beyond here lay
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error: use of deleted function
...working on some C++ code that a friend has written and I get the following error that I have never seen before when compiling with gcc4.6:
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Bash tool to get nth line from a file
...00 -d$'\n' myfile.ascii
pgm_icnt = 0
real 5m12.156s
This one took 00:05:12.156 to run, which is much slower than the baseline! I'm not sure whether it read through the entire file or just up to line 50 million before stopping, but regardless this doesn't seem like a viable solution to the prob...
Compare dates in MySQL
...elow query,
select * from players
where
us_reg_date between '2000-07-05'
and
DATE_ADD('2011-11-10',INTERVAL 1 DAY)
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error: command 'gcc' failed with exit status 1 while installing eventlet
...to have "Herd" for software deployment.. but the terminal is showing a gcc error:
16 Answers
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How to compile without warnings being treated as errors?
...les well on Windows, is unable to compile on Ubuntu. Every time I get this error:
7 Answers
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Error in plot.new() : figure margins too large in R
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This error can occur in Rstudio simply because your "Plots" pane is just barely too small. Try zooming your "Files, Plots, Packages, Help, Viewer" and see if it helps!
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error: request for member '..' in '..' which is of non-class type
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Foo foo2();
change to
Foo foo2;
You get the error because compiler thinks of
Foo foo2()
as of function declaration with name 'foo2' and the return type 'Foo'.
But in that case If we change to Foo foo2 , the compiler might show the error " call of overloaded ‘Fo...
Runtime vs. Compile time
... compiler and watch it barf...
What can go wrong at compile time:
Syntax errors
Typechecking errors
(Rarely) compiler crashes
If the compiler succeeds, what do we know?
The program was well formed---a meaningful program in whatever language.
It's possible to start running the program. (The pro...
$apply already in progress error
...
You are getting this error because you are calling $apply inside an existing digestion cycle.
The big question is: why are you calling $apply? You shouldn't ever need to call $apply unless you are interfacing from a non-Angular event. The ex...