大约有 15,564 项符合查询结果（耗时：0.0447秒） [XML]
Non-static method requires a target
...uery in the constructor of a child controller and throwing this mysterious error!
– Shawson
Oct 3 '17 at 16:43
3
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Why should I avoid std::enable_if in function signatures
...use now the function signature aren't unique causing ambiguous overloading errors.
– Paul Fultz II
Mar 3 '13 at 17:05
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Default template arguments for function templates
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The following code fails to compile, with errors like error: invalid conversion from ‘int’ to ‘int*’, any idea why: ` #include <array> #include <algorithm> #include <functional> template<typename Iterator, typename Comp ...
Why should casting be avoided? [closed]
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Casting errors are always reported as run-time errors in java. Using generics or templating turns these errors into compile-time errors, making it much easier to detect when you have made a mistake.
As I said above. This isn't to sa...
Fetch frame count with ffmpeg
... number. See Edit lists below.
ffprobe: Query the container
ffprobe -v error -select_streams v:0 -show_entries stream=nb_frames -of default=nokey=1:noprint_wrappers=1 input.mp4
This is a fast method.
Not all formats (such as Matroska) will report the number of frames resulting in the output o...
Show just the current branch in Git
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Getting the error fatal: ref HEAD is not a symbolic ref when running this as a part of a TravisCI build
– kmanzana
Sep 21 '17 at 16:50
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pip install mysql-python fails with EnvironmentError: mysql_config not found
This is the error I get
21 Answers
21
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What is the difference between const int*, const int * const, and int const *?
... this side effect.
int var0 = 0;
const int &ptr1 = var0;
ptr1 = 8; // Error
var0 = 6; // OK
Constant pointers
Once a constant pointer points to a variable then it cannot point to any other variable.
int var1 = 1;
int var2 = 0;
int *const ptr2 = &var1;
ptr2 = &var2; // Error
Pointe...
Why are my PowerShell scripts not running?
I wrote a simple batch file as a PowerShell script, and I am getting errors when they run.
9 Answers
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How to change position of Toast in Android?
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If you get an error indicating that you must call makeText, the following code will fix it:
Toast toast= Toast.makeText(getApplicationContext(),
"Your string here", Toast.LENGTH_SHORT);
toast.setGravity(Gravity.TOP|Gravity.CENTER_HORIZ...