大约有 46,000 项符合查询结果（耗时：0.0398秒） [XML]
How to convert CFStringRef to NSString?
...n objects with +1 reference counts, meaning that they need to be released (all CF[Type]Create format functions do this).
The nice thing is that in Cocoa you can safely use autorelease or release to free them up.
share
...
Why do people say there is modulo bias when using a random number generator?
...AND_MAX is 10 and I decide to generate a random number between 0 and 2 by calling rand()%3. However, rand()%3 does not produce the numbers between 0 and 2 with equal probability!
When rand() returns 0, 3, 6, or 9, rand()%3 == 0. Therefore, P(0) = 4/11
When rand() returns 1, 4, 7, or 10, rand()%3 ...
How to easily map c++ enums to strings
...xtra syntactic sugar, here's how to write a map_init class. The goal is to allow
std::map<MyEnum, const char*> MyMap;
map_init(MyMap)
(eValue1, "A")
(eValue2, "B")
(eValue3, "C")
;
The function template <typename T> map_init(T&) returns a map_init_helper<T>.
map...
Is gcc's __attribute__((packed)) / #pragma pack unsafe?
...
Yes, __attribute__((packed)) is potentially unsafe on some systems. The symptom probably won't show up on an x86, which just makes the problem more insidious; testing on x86 systems won't reveal the problem. (On the x86, misaligned accesses are handled in hardwa...
Should operator
That's basically the question, is there a "right" way to implement operator<< ?
Reading this I can see that something like:
...
Get Android Phone Model programmatically
...uld like to know if there is a way for reading the Phone Model programmatically in Android.
16 Answers
...
What is 'YTowOnt9'?
...e64 encoded PHP-serialized values do too, but when they are empty they are all the same. It makes it look as if a lot of very different PHP scripts have this random string in common.
share
|
improve...
How do I copy an entire directory of files into an existing directory using Python?
...is answer.
– Sun Bear
Aug 27 '19 at 11:59
...
ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
To allocate() or to allocateDirect() , that is the question.
4 Answers
4
...
Using GPU from a docker container?
...the following environment:
Ubuntu 14.04
CUDA 6.5
AWS GPU instance.
Install nvidia driver and cuda on your host
See CUDA 6.5 on AWS GPU Instance Running Ubuntu 14.04 to get your host machine setup.
Install Docker
$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D786...