|Related to : Read all data from stdin C|
|C - stdin to variables|
If you want to extract integers from a string,use
Where arr is the array of char containing data from which you want to
extract two integers and num1 and num2 are two int variables.
Or else you can directly scan two ints using
It is better to check if scanf (or sscanf) is successful. Both of
these will return 2(in
|Add stdin as another file to a tar archive|
I don't know a way to create a "fake" file entry in a JAR archive. I'd
create a normal file, add it to the archive and then delete it
You may want to try the option -A (or --concatenate), though. That
would allow you to create the file in /tmp, add it to the TAR archive
and then append the rest of the files in a second step. That way, you
can create arbitrary paths for the VERSION fil
|Perl dies on big XML file, using STDIN|
That's an XML error, not a Perl error. It does suggest you've got
You can trap it by eval in the parse.
But actually - thinking about it - the problem is probably that you're
only reading the first line of STDIN with your parse.
$twig -> parse ( <STDIN> );
However, for large XML files, I quite like XML::Twig, because it has a
|freopen doesn't work for C stdin|
If path, mode, or stream is a null pointer, or if filename is an
empty string, these functions invoke the invalid parameter handler, as
described in Parameter Validation. If execution is allowed to
continue, these functions set errno to EINVAL and return NULL.
In short, it looks like the MSVC++ implementation of freopen does not
|Reading input while also piping a script via stdin|
When you cat a script to bash the code to execute is coming from
Where does read read from? That's right also standard input. This is
why you can cat input to programs that take standard input (like sed,
So you are not running "a script" per-se when you do this. You are
running a series of input lines.
Where would you like read to read data from in this setup?