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What's the best way to check if a file exists in C?
...ion, found in unistd.h. You can replace your function with
if( access( fname, F_OK ) != -1 ) {
// file exists
} else {
// file doesn't exist
}
You can also use R_OK, W_OK, and X_OK in place of F_OK to check for read permission, write permission, and execute permission (respectively) rathe...
Is there a cross-browser onload event when clicking the back button?
...w).bind("unload", function() { // ...
By default, it does nothing. But somehow this seems to trigger a reload in Safari, Opera and Mozilla -- no matter what the event handler contains.
[edit(Nickolay): here's why it works that way: webkit.org, developer.mozilla.org. Please read those articles (or...
How can I create a keystore?
...n in the title, you create a keystore with the Java Keytool utility that comes with any standard JDK distribution and can be located at %JAVA_HOME%\bin. On Windows this would usually be C:\Program Files\Java\jre7\bin.
So on Windows, open a command window and switch to that directory and enter a comm...
Passing a function with parameters as a parameter?
Is it possible to pass a javascript function with parameters as a parameter?
7 Answers
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Removing MySQL 5.7 Completely [closed]
...
Confirmed that this also works to remove MySQL 5.6 (just change the version number in the relevant commands in this answer).
– Dan Nissenbaum
Oct 9 '15 at 8:34
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Can vim monitor realtime changes to a file
My question is similar to this how to monitor a text file in realtime
but I want to do it in vim. I know I can read an opened file use tail -f sample.xml file, and when new content is written to the file, it'll also write the new content to my screen. Can I have vim automatically fill the new da...
Difference between require, include, require_once and include_once?
...ill stop.
The answer to 2 can be found here.
The require_once() statement is identical to require() except PHP will check if the file has already been included, and if so, not include (require) it again.
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How does Trello access the user's clipboard?
...s the user's clipboard", instead we help the user out a bit by selecting something useful when they press Ctrl+C.
Sounds like you've figured it out; we take advantage of the fact that when you want to hit Ctrl+C, you have to hit the Ctrl key first. When the Ctrl key is pressed, we pop in a textare...
What's the opposite of chr() in Ruby?
...r() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() .
10 Answ...
In a Bash script, how can I exit the entire script if a certain condition occurs?
I'm writing a script in Bash to test some code. However, it seems silly to run the tests if compiling the code fails in the first place, in which case I'll just abort the tests.
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