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Get current time in seconds since the Epoch on Linux, Bash
...e , but in seconds since 1970 instead of the current date, hours, minutes, and seconds.
7 Answers
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What exactly do “u” and “r” string flags do, and what are raw string literals?
...no "escape sequences" to represent newlines, tabs, backspaces, form-feeds, and so on. In normal string literals, each backslash must be doubled up to avoid being taken as the start of an escape sequence.
This syntax variant exists mostly because the syntax of regular expression patterns is heavy w...
How to send SMS in Java
What are the possible ways to send and receive sms from Java application?
16 Answers
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Are there any disadvantages to always using nvarchar(MAX)?
...when you store it to a VARCHAR(MAX) column, behind the screen the data is handled as a TEXT value. So there is some additional processing needed when dealing with a VARCHAR(MAX) value. (only if the size exceeds 8000)
VARCHAR(MAX) or NVARCHAR(MAX) is considered as a 'large value type'. Large value ty...
Core dump file analysis [duplicate]
...ular stack frame.
You can then use list to see code around that function, and info locals to see the local variables. You can also use print name_of_variable (replacing "name_of_variable" with a variable name) to see its value.
Typing help within GDB will give you a prompt that will let you see ad...
Javascript switch vs. if…else if…else
...le states that there is a negligible performance difference between switch and if/then statements in JS. The article states this is due to spotty switch optimization and the different ways different JS engines function. Quote: Since most JavaScript engines don’t have such optimizations, performanc...
List submodules in a Git repository
...lf, namely, look at .gitmodules. This files enumerates each submodule path and the URL it refers to.
For example, from root of repository, cat .gitmodules will print contents to the screen (assuming you have cat).
Because .gitmodule files have the Git configuration format, you can use git config t...
Why does “split” on an empty string return a non-empty array?
...
For the same reason that
",test" split ','
and
",test," split ','
will return an array of size 2. Everything before the first match is returned as the first element.
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ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...L正则表达式库使用ATL中，由于ATL Server的需要，需要对Client发送过来的地址、命令等复杂文字字段信息解码，而正则表达式是公认的最强大的文字解析工具，所...ATL中，由于ATL Server的需要，需要对Client发送过来的地址、命令等复...
Why is Github asking for username/password when following the instructions on screen and pushing a n
I'm the owner of an organization on github and just created a repo and tried pushing but I'm running into an issue where it's asking me for my username even though I can SSH just fine:
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