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C multi-line macro: do/while(0) vs scope block [duplicate]
...l
expand into a regular statement, not into a compound statement. This is
done in order to make the use of function-style macros uniform with the
use of ordinary functions in all contexts.
Consider the following code sketch
if (<condition>)
foo(a);
else
bar(a);
where 'foo' and 'bar' ar...
Naming cookies - best practices [closed]
... call for.
Generally I prefer camelCase for naming schemes, but whichever one pays the bills is the one I'll go with.
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FFmpeg C API documentation/tutorial [closed]
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Here is the best one I have found so far. It deals with a lot of the quirks of the API and shows you how to build a working video player using SDL and libavformat/libavcodec.
http://dranger.com/ffmpeg/
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Order a List (C#) by many fields? [duplicate]
I want to order a List of objects in C# by many fields, not just by one. For example, let's suppose I have a class called X with two Attributes, A and B, and I have the following objects, in that order:
...
How to add `style=display:“block”` to an element using jQuery?
...tion to do this work that wrote in bottom based on priority.
.css()
Set one or more CSS properties for the set of matched elements.
$("div").css("display", "block")
// Or add multiple CSS properties
$("div").css({
display: "block",
color: "red",
...
})
.show()
Display the matched elem...
Serialize object to query string in JavaScript/jQuery [duplicate]
...//api.jquery.com/jQuery.param/
Specifically, you want this:
var data = { one: 'first', two: 'second' };
var result = $.param(data);
When given something like this:
{a: 1, b : 23, c : "te!@#st"}
$.param will return this:
a=1&b=23&c=te!%40%23st
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What is $@ in Bash? [duplicate]
...is not allowed.
* Expands to the positional parameters, starting from one. When the expansion occurs within double quotes, it expands to a single word with the value of each parameter separated by the first character of the IFS special variable. That is, "$*" is equivalent to "$1c$2c.....
What does ~> mean in a gem file [duplicate]
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so it means less than one plus the second digit?!?! what is the logic behind that?! what if you wanted it to be less than one plus the third digit. or less than one plus the first digit. Also can you provide a source
– bar...
How to get a list of file names in different lines
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ls -1. From the help:
-1 list one file per line
Works on cygwin and FreeBSD, so it's probably not too GNU-specific.
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Convert the values in a column into row names in an existing data frame
...hort, no there is no alternative to reassigning.
Edit: Correcting myself, one can also do it in place: assign rowname attributes, then remove column:
R> df<-data.frame(a=letters[1:10], b=1:10, c=LETTERS[1:10])
R> rownames(df) <- df[,1]
R> df[,1] <- NULL
R> df
b c
a 1 A
b ...