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What's the difference between a file descriptor and file pointer?
...contains this file descriptor amongst other things such as end-of-file and error indicator, stream position etc.
So using fopen() gives you a certain amount of abstraction compared to open(). In general you should be using fopen() since that is more portable and you can use all the other standard C...
What do commas and spaces in multiple classes mean in CSS?
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answered Jul 27 '10 at 14:05
Alan PeabodyAlan Peabody
3,28711 gold badge1717 silver badges2525 bronze badges
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Count character occurrences in a string in C++
...ile!
– John Dibling
Oct 5 '10 at 22:05
6
@Tamas: Of course not, but I don't have my fun while "an...
How do I create a random alpha-numeric string in C++?
I'd like to create a random string, consisting of alpha-numeric characters. I want to be able to be specify the length of the string.
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Cannot run Eclipse; JVM terminated. Exit code=13
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It may just be the way the error shows (and not how it is written in the eclipse.ini file), but there is text in Eclipse.ini (Specifying the JVM) that says the following:
The -vm option and its value (the path) must be on separate lines.
The v...
How to convert a data frame column to numeric type?
...e" to numeric. If there's just one character element in vector, you'll get error when trying to convert that vector to numerical one.
And just to prove my point:
> err <- c(1, "b", 3, 4, "e")
> mode(err)
[1] "character"
> class(err)
[1] "character"
> char <- as.numeric(err)
Warni...
Installing older version of R package
I am trying to use Rpy2 and ggplot2 but I get an error. After some searching for the error online, I found that the error occurs because there are changes in the ggplot2 package that are not yet reflected in Rpy2 (for example, see this post (Edit: Link is now dead)).
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Commenting in a Bash script inside a multiline command
...re that '__' remains unset
scat <<EOF # else exit with an error
Error: the parameter __='${__}' is set, hence the
comment-idiom '\${__+ <comment text>}' will fail
EOF
${__+ (example of inline comments)
------------------------------------------------
the following inline co...
Python date string to date object
...en as 1900. The issue occurs when parsing Feb date like '2902'. I get this error ValueError: day is out of range for month. Not sure how I can set the default year while parsing.
– Shubham Naik
Apr 19 at 13:28
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What's the difference between integer class and numeric class in R
I want to preface this by saying I'm an absolute programming beginner, so please excuse how basic this question is.
4 Answ...