大约有 39,000 项符合查询结果（耗时：0.0568秒） [XML]
Difference between HashSet and HashMap?
...
151
They are entirely different constructs. A HashMap is an implementation of Map. A Map maps key...
What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?
...
156
A key-value store provides the simplest possible data model and is exactly what the name sugges...
FixedThreadPool vs CachedThreadPool: the lesser of two evils
I have a program that spawns threads (~5-150) which perform a bunch of tasks. Originally, I used a FixedThreadPool because this similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the thr...
multiple definition of template specialization when using different objects
...
answered Dec 15 '10 at 0:51
Stuart GolodetzStuart Golodetz
18.6k33 gold badges4242 silver badges7979 bronze badges
...
What is the “FS”/“GS” register intended for?
...
5 Answers
5
Active
...
Restore file from old commit in git
...
answered Jul 8 '11 at 11:57
sehesehe
311k4040 gold badges395395 silver badges533533 bronze badges
...
What are the differences between .gitignore and .gitkeep?
...
3583
.gitkeep isn’t documented, because it’s not a feature of Git.
Git cannot add a completely...
How to frame two for loops in list comprehension python
...swered Aug 31 '13 at 18:28
user2555451user2555451
add a comment
...
Is gcc std::unordered_map implementation slow? If so - why?
...on: it is a Problem of gcc-4.7!!
With gcc-4.7
inserts: 37728
get : 2985
With gcc-4.6
inserts: 2531
get : 1565
So std::unordered_map in gcc-4.7 is broken (or my installation, which is an installation of gcc-4.7.0 on Ubuntu - and another installation which is gcc 4.7.1 on debian testing)....