大约有 40,000 项符合查询结果（耗时：0.0542秒） [XML]
How to remove from a map while iterating it?
...begin(); it != m.cend() /* not hoisted */; /* no increment */)
{
if (must_delete)
{
m.erase(it++); // or "it = m.erase(it)" since C++11
}
else
{
++it;
}
}
Note that we really want an ordinary for loop here, since we are modifying the container itself. The range-based loop sh...
Functional programming - is immutability expensive? [closed]
...
Rex KerrRex Kerr
160k2323 gold badges302302 silver badges398398 bronze badges
...
JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object
...
It seems that for a 64 bit architecture you have to install both the 32-bit version and the 64-bit version of jre (architecture independent files as rt.jar are distributed only in the 32-bit version).
Remember then to pay attention to include the correct java executable on the global PATH env...
Delete column from SQLite table
...trate how this could be done:
BEGIN TRANSACTION;
CREATE TEMPORARY TABLE t1_backup(a,b);
INSERT INTO t1_backup SELECT a,b FROM t1;
DROP TABLE t1;
CREATE TABLE t1(a,b);
INSERT INTO t1 SELECT a,b FROM t1_backup;
DROP TABLE t1_backup;
COMMIT;
...
What are some uses of template template parameters?
...ive an example. Let's pretend that std::vector doesn't have a typedef value_type.
So how would you write a function which can create variables of the right type for the vectors elements? This would work.
template <template<class, class> class V, class T, class A>
void f(V<T, A> ...
Maximum call stack size exceeded error
...ay into a string using the following:
String.fromCharCode.apply(null, new Uint16Array(bytes))
bytes contained several million entries, which is too big to fit on the stack.
share
|
improve this a...
Cost of len() function
...rtelli
724k148148 gold badges11251125 silver badges13241324 bronze badges
20
...
Cannot kill Python script with Ctrl-C
... Jon Clements♦Jon Clements
118k2929 gold badges213213 silver badges250250 bronze badges
add a comment
...
Does Java have something like C#'s ref and out keywords?
...mulate reference with wrappers.
And do the following:
void changeString( _<String> str ) {
str.s("def");
}
void testRef() {
_<String> abc = new _<String>("abc");
changeString( abc );
out.println( abc ); // prints def
}
Out
void setString( _<String> re...
Performance of Find() vs. FirstOrDefault() [duplicate]
...ject an anonmyous data item just for compilation
List<\u003C\u003Ef__AnonymousType0<string>> source = Enumerable.ToList(Enumerable.Select(Enumerable.Range(0, 1000000), i =>
{
var local_0 = new
{
Name = Guid.NewGuid().ToString()
};
return local_...