大约有 23,000 项符合查询结果（耗时：0.0323秒） [XML]
Intel SMID指令集编译错误: inlining failed in call to always_inline \'x...
...CPU指令集优化代码的时候，编译出错，报错如下： usr lib64 gcc x86_64-suse-linux 7 include avx2intrin h:252:1: error: inlining failed in call to always_i 最近在使用CPU指令集优化代码的时候，编译出错，报错如下：
/usr/lib64/gcc/x86_64-suse-linux/7/includ...
SQL SELECT speed int vs varchar
...
Some rough benchmarks:
4 million records in Postgres 9.x
Table A = base table with some columns
Table B = Table A + extra column id of type bigint with random numbers
Table C = Table A + extra column id of type text with random 16-char ASCII strings
Results on 8GB RAM, i7, SSD laptop:
Siz...
When are you truly forced to use UUID as part of the design?
...dom - there are major components of the UUID that are time and/or location-based. So to have any real chance at a collision, the colliding UUIDs need tobe generated at the exact same time from different UUID generators. I'd say that while there is a reasonable chance that several UUID's might be ge...
How do I determine the current operating system with Node.js
...
On Mac the variable returns darwin. On Windows, it returns win32 (even on 64 bit).
Current possible values are:
aix
darwin
freebsd
linux
openbsd
sunos
win32
I just set this at the top of my jakeFile:
var isWin = process.platform === "win32";
...
FormsAuthentication.SignOut() does not log the user out
...de caching in the Page_Load event of each page, or in the OnLoad() of your base page:
Response.Cache.SetCacheability(HttpCacheability.NoCache);
You might also like to call:
Response.Cache.SetNoStore();
share
|
...
What is the maximum possible length of a .NET string?
...
Based on my highly scientific and accurate experiment, it tops out on my machine well before 1,000,000,000 characters. (I'm still running the code below to get a better pinpoint).
UPDATE:
After a few hours, I've given up. Fi...
Strings in a DataFrame, but dtype is object
...ndarray. Every element in a ndarray must has the same size in byte. For int64 and float64, they are 8 bytes. But for strings, the length of the string is not fixed. So instead of save the bytes of strings in the ndarray directly, Pandas use object ndarray, which save pointers to objects, because of ...
Maximum length of HTTP GET request
...--------------------------------
Chrome 32779 >64k
Android 8192 >64k
Firefox >64k >64k
Safari >64k >64k
Internet Explorer 11 2047 5120
Edge 16 2047 ...
Convert from ASCII string encoded in Hex to plain ASCII?
...his, here's one of the shortest, using only python-provided stuff:
import base64
hex_data ='57696C6C20796F7520636F6E76657274207468697320484558205468696E6720696E746F20415343494920666F72206D653F2E202E202E202E506C656565656173652E2E2E212121'
ascii_string = str(base64.b16decode(hex_data))[2:-1]
print (a...
What is the optimal algorithm for the game 2048?
... well.
Since the game is a discrete state space, perfect information, turn-based game like chess and checkers, I used the same methods that have been proven to work on those games, namely minimax search with alpha-beta pruning. Since there is already a lot of info on that algorithm out there, I'll j...