大约有 16,000 项符合查询结果（耗时：0.0238秒） [XML]
Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplic
... you send the argument by reference. Did you mean
void copyVecFast(vec<int> original) // no reference
{
vector<int> new_;
new_.swap(original);
}
That would work, but an easier way is
vector<int> new_(original);
...
Is there a fixed sized queue which removes excessive elements?
...s with an exception. It would be best ( and quite simple ) to wrap a Queue into a class of your own for having the functionality you need.
Once again, because all queues are children of AbstractQueue, simply use that as your internal data type and you should have a flexible implementation running ...
Value Change Listener to JTextField
...Update(DocumentEvent e) {
warn();
}
public void warn() {
if (Integer.parseInt(textField.getText())<=0){
JOptionPane.showMessageDialog(null,
"Error: Please enter number bigger than 0", "Error Message",
JOptionPane.ERROR_MESSAGE);
}
}
});
...
Getting a structural type with an anonymous class's methods from a macro
...ame(c.freshName)
val tree = q"""
class $anon {
def $A(i: Int): Int = 2 * i
}
val $dmmy = 0
new $anon
"""
// other ploys
//(new $anon).asInstanceOf[{ def $A(i: Int): Int }]
// reference the member
//val res = new $anon
//val $dmmy ...
Inline functions in C#?
...
Finally in .NET 4.5, the CLR allows one to hint/suggest1 method inlining using MethodImplOptions.AggressiveInlining value. It is also available in the Mono's trunk (committed today).
// The full attribute usage is in mscorlib.dll,
// so should not need to include extr...
How do you sort a dictionary by value?
... }
);
Since you're targeting .NET 2.0 or above, you can simplify this into lambda syntax -- it's equivalent, but shorter. If you're targeting .NET 2.0 you can only use this syntax if you're using the compiler from Visual Studio 2008 (or above).
var myList = aDictionary.ToList();
myList.Sort...
Programmatically shut down Spring Boot application
...Example.class, args);
// ...determine it's time to stop...
int exitCode = SpringApplication.exit(ctx, new ExitCodeGenerator() {
@Override
public int getExitCode() {
// no errors
return 0;
}
});
// or...
SQL Server insert if not exists best practice
...nd the new competitors by filtering the distinct records that don´t match int the join:
INSERT Competitors (cName)
SELECT DISTINCT cr.Name
FROM CompResults cr left join
Competitors c on cr.Name = c.cName
where c.cName is null
New syntax MERGE also offer a compact, elegant and effic...
Should we pass a shared_ptr by reference or by value?
...pdate to this discussion has happened during GoingNative 2012 conference's Interactive Panel: Ask Us Anything! which is worth watching, especially from 22:50.
share
|
improve this answer
|
...
hash function for string
...nsigned long
hash(unsigned char *str)
{
unsigned long hash = 5381;
int c;
while (c = *str++)
hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
return hash;
}
share
|
...