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Why is “while ( !feof (file) )” always wrong?
...amp;bufsiz, fp)) != -1)
{
/* Use nbytes of data in buffer */
}
free(buffer);
The result we must use is nbytes, the number of bytes up to and including the newline (or EOF if the file did not end with a newline).
Note that the function explicitly returns -1 (and not EOF!) when an error o...
Why isn't String.Empty a constant?
...nt, because the containing Y is a class" was just a little bit too context-free ;) – Leonidas Feb 3 '09 at 17:01
string.Empty is static property that returns an instance of the String class, namely the empty string, not the string class itself. – tvanfosson Feb 3 '09 at 17:01
Empty is ...
What is the difference between LR, SLR, and LALR parsers?
... said all this, it is worth knowing that GLR parsers can parse any context free language, using more complicated machinery but exactly the same tables (including the smaller version used by LALR). This means that GLR is strictly more powerful than LR, LALR and SLR; pretty much if you can write a sta...
Stopping scripters from slamming your website
...bots. This removes the
burden from people, and leaves the
comment form free of visible anti-spam
measures.
This technique is how I prevent
spambots on this site. It works. The
method described here doesn't look at
the content at all.
Some other ideas:
Create an official auto-not...
How do I detect a click outside an element?
...
@zzzzBov no i am not looking for you to write a jQuery-free version of course, i will try to do it and i guess the best is to ask a new question here if i really get stuck. Thanks a lot again.
– HendrikEng
Jan 4 '17 at 12:19
...
How do Mockito matchers work?
...true if the object matches the Matcher's criteria. They are intended to be free of side effects, and are generally used in assertions such as the one below.
/* Mockito */ verify(foo).setPowerLevel(gt(9000));
/* Hamcrest */ assertThat(foo.getPowerLevel(), is(greaterThan(9000)));
Mockito matchers ex...
How can I exclude all “permission denied” messages from “find”?
...her than permission-denied ones are passed through, to stderr.
side-effect free: find's exit code is preserved: the inability to access at least one of the filesystem items encountered results in exit code 1 (although that won't tell you whether errors other than permission-denied ones occurred (too...
Is git-svn dcommit after merging in git dangerous?
...legacy svn project.
When you become more familiar with git merging, feel free to explore other workflows: If you know what you are doing, you can mix git merges with svn merges (Using git-svn (or similar) just to help out with svn merge?)
...
How does data binding work in AngularJS?
...n, and guarantee, that only one listener runs at a time, hence any code is free to change data, and it knows that no other code runs while it is doing so.
What about performance?
So it may seem that we are slow, since dirty-checking is inefficient. This is where we need to look at real numbers ra...
Are PDO prepared statements sufficient to prevent SQL injection?
...he call to mysql_real_escape_string() inserts the backslash, and we have a free hanging ' character in our "escaped" content! In fact, if we were to look at $var in the gbk character set, we'd see:
縗' OR 1=1 /*
Which is exactly what the attack requires.
The Query
This part is just a formality, ...