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How to round to 2 decimals with Python?
...original post and it looks working as expected. Seems round() evolved over time. See below: round(1.379, 2) -> 1.38 round(1.372, 2) -> 1.37 round(1.375, 2) -> 1.38
– NightFurry
Aug 16 '18 at 6:50
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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...dr;
ipc.addr = faddr = daddr; //控制信息改成目的地址
sock_tx_timestamp(sk, ipc.sockc.tsflags, &ipc.tx_flags);
if (ipc.opt && ipc.opt->opt.srr) {//设置了源路由
if (!daddr)
return -EINVAL;
faddr = ipc.opt->opt.faddr; //需要使用ip选项中的下一跳作为目的地...
Haskell Type vs Data Constructor
...f named fields that hold various different types of data. You can also sometimes make an "enumeration", which has a (small) set of fixed possible values (e.g., your Red, Green and Blue).
In Haskell, you can combine both of these at the same time. Weird, but true!
Why is it called "algebraic"? Well...
Why use AJAX when WebSockets is available?
...s, no need for "no data" roundtrips, etc'). This was discussed a number of times.
AJAX for REST?
A better use for AJAX is REST API calls. This use simplifies the code base and prevents the Websocket connection from blocking (especially on medium sized data uploads).
There are a number of compelli...
Get environment variable value in Dockerfile
...e.
The ARG instruction defines a variable that users can pass at build-time to the builder with the docker build command using the --build-arg <varname>=<value> flag.
So your Dockerfile will have this line:
ARG request_domain
or if you'd prefer a default value:
ARG request_doma...
Determining the size of an Android view at runtime
...scale from the current size to the new size. This part must be done at runtime, since the view scales to different sizes depending on input from the user. My layout is defined in XML.
...
How to split the name string in mysql?
How to split the name string in mysql ?
16 Answers
16
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What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
.... Its internal APIs were
designed for UCS-2, which was reasonable at the time since it was
before the variable-length UTF-8 and UTF-16 encodings were
standardized. But now that they support UTF-16, they've ended up with
the worst of both worlds.
...
How to highlight and color gdb output during interactive debugging?
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Wow! Thanks! I've been looking for a long time for a nice graphical shell around gdb, and I have tried xxgdb, kgdb and ddd, but none of them worked very good for me, so I've stuck with the plain old command line interface. But this is absolutely perfect!
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Reading CSV files using C#
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Sometimes using libraries are cool when you do not want to reinvent the wheel, but in this case one can do the same job with fewer lines of code and easier to read compared to using libraries.
Here is a different approach which I...