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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
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Link to the PEP discussing the new bool type in Python 2.3: http://www.python.org/dev/peps/pep-0285/.
When converting a bool to an int, the integer value is always 0 or 1, but when converting an int to a bool, the boolean value is True for all integers except 0.
>>> int(Fal...
Passing base64 encoded strings in URL
...ximum length, browsers, servers, libraries and other software working with HTTP protocol may define its' own limits. You may take a look at this article: WWW FAQs: What is the maximum length of a URL?
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PostgreSQL: insert from another table
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Dealing with commas in a CSV file
...s (CRLF), double quotes, and commas should be enclosed in double-quotes.
http://tools.ietf.org/html/rfc4180
So, to have values foo and bar,baz, you do this:
foo,"bar,baz"
Another important requirement to consider (also from the spec):
If double-quotes are used to enclose fields, then a dou...
bool to int conversion
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Authorize Attribute with Multiple Roles
...erry Finegan (using "System.Web.Mvc.AuthorizeAttribute and NOT System.Web.Http.AuthorizeAttribute")
– RJB
Sep 16 '19 at 18:20
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修改centos字符集导致桌面进不去的一系列问题 - 更多技术 - 清泛网 - 专注C...
...RACLE 的字符集一致怎么修改WINDOWS下的 PL SQL 字符集请参看http: user.qzone.qq.com 587...为了使 WINDOWS –PL/SQL-LINUX –ORACLE 的字符集一致
怎么修改WINDOWS下的 PL/SQL 字符集请参看 http://user.qzone.qq.com/58740020/blog/1407983208
修改
[root@cento...
Naming convention - underscore in C++ and C# variables
...hey are using the same one.
I found the reference for what I was saying :
http://10rem.net/articles/net-naming-conventions-and-programming-standards---best-practices
Camel Case with Leading Underscore. In
VB.NET, always indicate "Protected" or
"Private", do not use "Dim". Use of
"m_" is d...
How do I globally configure RSpec to keep the '--color' and '--format specdoc' options turned on
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If you use rake to run rspec tests then you can edit spec/spec.opts
http://rspec.info/rails/runners.html
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How to print register values in GDB?
...nd f (float) can be found with:
maint print reggroups
as documented at: https://sourceware.org/gdb/current/onlinedocs/gdb/Registers.html#Registers
Tips:
xmm0 ~ xmm15, are 128 bits, almost every modern machine has it, they are released in 1999.
ymm0 ~ ymm15, are 256 bits, new machine usually ha...