大约有 40,000 项符合查询结果（耗时：0.0344秒） [XML]
Waiting on a list of Future
...uppose instead that you would like to use the first non-null result of the set of tasks, ignoring any that encounter exceptions, and cancelling all other tasks when the first one is ready:
void solve(Executor e, Collection<Callable<Result>> solvers) throws InterruptedException {
Co...
Does Haskell require a garbage collector?
...tic memory management is necessary because manual memory management is unsafe; dynamic memory management is necessary because for some programs, the lifetime of an object can only be determined at runtime.
For example, consider the following program:
main = loop (Just [1..1000]) where
loop :: M...
How to loop through a directory recursively to delete files with certain extensions
... if there are spaces in filenames. You can work around this by temporarily setting the IFS (internal field seperator) to the newline character. This also fails if there are wildcard characters \[?* in the file names. You can work around that by temporarily disabling wildcard expansion (globbing).
I...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
... <stdio.h>
struct str{
int len;
char s[0];
};
struct foo {
struct str *a;
};
int main(int argc, char** argv) {
struct foo f={0};
if (f.a->s) {
printf( f.a->s);
}
return 0;
}
你编译一下上面的代码，在...
IntelliJ shortcut to show a popup of methods in a class that can be searched
I'm switching over from Eclipse to IntelliJ. In Eclipse, if you do Ctrl + O in the editor, it will show a hover popup that allows you to search for a method in the class you're editing.
...
C++ static virtual members?
Is it possible in C++ to have a member function that is both static and virtual ? Apparently, there isn't a straightforward way to do it ( static virtual member(); is a compile error), but is there at least a way to achieve the same effect?
...
How can I specify a branch/tag when adding a Git submodule?
... Consider a tag a human readable alias to a commit. And a commit is a set of specific state for each file. A branch is essentially the same thing except you can make changes to it.
– deadbabykitten
Feb 2 '16 at 0:13
...
Synchronizing a local Git repository with a remote one
...
These steps will do it:
git reset --hard HEAD
git clean -f -x -d -n
then without -n
This will take care of all local changes. Now the commits...
git status
and note the line such as:
Your branch is ahead of 'xxxx' by N commits.
Take a note of num...
How to remove the lines which appear on file B from another file A?
...one line for each mail. I also have another file B that contains another set of mails.
9 Answers
...
See what's in a stash without applying it [duplicate]
I see here you can apply/unapply a stash and even create a new branch off of a stash. Is it possible to simply see what is inside the stash without actually applying it?
...