大约有 15,640 项符合查询结果（耗时：0.0319秒） [XML]
Best Practice for Exception Handling in a Windows Forms Application?
... as simple as wrapping Main() in a try/catch, failing fast with a graceful error message to the user. This is the "last resort" exception handler.
Preemptive checks are always correct if feasible, but not always perfect. For example, between the code where you check for a file's existence and the n...
No Persistence provider for EntityManager named
...emoved it once I solved the problem, just to make sure). I was getting the error finally because persistence.xml was not in the src/META-INF folder, even though it had been in a folder in the Eclipse source path for the project. I'm thinking somewhere it's hard-wired to be on src/*
...
Tainted canvases may not be exported
... file or url to get a cross domain issue. Then why it is resulting in this error?
– Sajith
Feb 25 '15 at 5:19
...
Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?
...llowing is how eof can be used (and even, be more reliable than fail() for error checking):
while( !(in>>std::ws).eof() ) {
int data;
in >> data;
if ( in.fail() ) /* handle with break or throw */;
// now use data
}
(Thanks Tony D for the suggestion to highlight the ...
Type or namespace name does not exist [closed]
...
+1 to this. Horribly misleading error message. Probably saved me hours of trying to figure it out. Hey Microsoft how about "unable to import namespace BLAH because BLAH is an incompatible version" but then I guess it would have robbed Nathan of 184 upvote...
Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
I want to use my Amazon ec2 instance but faced the following error:
29 Answers
29
...
Enforcing the type of the indexed members of a Typescript object?
... [key: string]: string; } = {};
stuff['a'] = ''; // ok
stuff['a'] = 4; // error
// ... or, if you're using this a lot and don't want to type so much ...
interface StringMap { [key: string]: string; }
var stuff2: StringMap = { };
// same as above
...
VIM + JSLint?
...cter"] + 1) + ":" + obj["reason"] );
This makes in mylintrun.js output a error list that can be used with the VIM quickfix window (:copen).
Now set the following in VIM:
set makeprg=cat\ %\ \\\|\ /my/path/to/js\ /my/path/to/mylintrun.js\ %
set errorformat=%f:%l:%c:%m
where you have to change /...
Stop setInterval
I want to stop this interval in the error handler from running repeatedly. Is that possible, and if so, how?
6 Answers
...
What is the use of having destructor as private?
... //
}
int main ()
{
myclass m; // error: ctor and dtor are private
myclass* mp = new myclass (..); // error: private ctor
myclass* mp = myclass::create(..); // OK
delete mp; // error: private dtor
myclass::destroy...