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std::string to char*
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It won't automatically convert (thank god). You'll have to use the method c_str() to get the C string version.
std::string str = "string";
const char *cstr = str.c_str();
Note that it returns a const char *; you aren't all...
Using Java 8's Optional with Stream::flatMap
...or some very concise java code, but I have come across a seemingly-simple situation that is tricky to do concisely.
12 Answ...
How do I pause my shell script for a second before continuing?
I have only found how to wait for user input. However, I only want to pause so that my while true doesn't crash my computer.
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Is it possible to make an HTML anchor tag not clickable/linkable using CSS?
...;a style="" href="page.html" class="inactiveLink">page link</a>
It makes the link not clickeable and the cursor style an arrow, not a hand as the links have.
or use this style in the html:
<a style="pointer-events: none; cursor: default;" href="page.html">page link</a>
but...
How do I pass a string into subprocess.Popen (using the stdin argument)?
...nd data to
the process’s stdin, you need to
create the Popen object with
stdin=PIPE. Similarly, to get anything
other than None in the result tuple,
you need to give stdout=PIPE and/or
stderr=PIPE too.
Replacing os.popen*
pipe = os.popen(cmd, 'w', bufsize)
# ==>
p...
How to efficiently concatenate strings in go
In Go, a string is a primitive type, which means it is read-only, and every manipulation of it will create a new string.
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What does “:=” do?
I've seen := used in several code samples, but never with an accompanying explanation. It's not exactly possible to google its use without knowing the proper name for it.
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Eclipse - “Workspace in use or cannot be created, chose a different one.” [duplicate]
I'm trying to create a workspace in the /Users/Shared/ directory with the thought that I can share that workspace between users. The problem is that after I create the workspace and change the permission on it, I encounter the error below (image) without even switching to a different user.
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Co-variant array conversion from x to y may cause run-time exception
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What it means is this
Control[] controls = new LinkLabel[10]; // compile time legal
controls[0] = new TextBox(); // compile time legal, runtime exception
And in more general terms
string[] array = new string[10];
object[] obj...
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
My problem started off with me not being able to log in as root any more on my mysql install. I was attempting to run mysql without passwords turned on... but whenever I ran the command
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