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Why are #ifndef and #define used in C++ header files?
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Those are called #include guards.
Once the header is included, it checks if a unique value (in this case HEADERFILE_H) is defined. Then if it's not defined, it defines it and continues to the rest of the page.
When the code is included again...
Get a list of all git commits, including the 'lost' ones
...enced any more- git fsck --unreachable will do this for you- but that will include commits that you threw away after a git commit --amend, old commits on branches that you rebased etc etc. So seeing all these commits at once is quite likely far too much information to wade through.
So the flippant ...
Decode Base64 data in Java
...is the best way to decode that in Java? Hopefully using only the libraries included with Sun Java 6.
20 Answers
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Is JavaScript supported in an email message?
... issue dire warnings when you try to turn it off!) Do modern email agents include internal html interpreters and, if so, is the javascript turned on or off? I've checked documentation on Thunderbird and find that javascript seems to be turned on by default but can be turned off: http://codeverge....
How can I add (simple) tracing in C#? [closed]
...rial with reference qualities to check up on every now and then. It should include:
2 Answers
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What do helper and helper_method do?
...elper :all
For Rails > 3.1
# application.rb
config.action_controller.include_all_helpers = true
# This is the default anyway, but worth knowing how to turn it off
makes all helper modules available to all views (at least for all controllers inheriting from application_controller.
# home_con...
Retaining file permissions with Git
...merge them together. For example, here's a post-checkout script that also includes the git-lfs commands:
#!/usr/bin/env bash
echo -n "Restoring file permissions... "
cd "$(git rev-parse --show-toplevel)"
. .permissions
echo "done."
command -v git-lfs >/dev/null 2>&1 || { echo >&a...
text-overflow:ellipsis in Firefox 4? (and FF5)
......";
if( $('#limitedWidthTextBox').val().length > limit) {
// -4 to include the ellipsis size and also since it is an index
var trimmedText = $('#limitedWidthTextBox').val().substring(0, limit - 4);
trimmedText += ellipsis;
$('#limitedWidthTextBox').val(trimmedText);
}
I understan...
Calculating frames per second in a game
... you calculated for the last frame. This way, all previous frames will be included, with the most recent frames weighted the most heavily.
– j_random_hacker
May 23 '13 at 20:37
1
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Can I have an onclick effect in CSS?
...eractivity is beyond the scope of CSS' purpose), I'll update the answer to include it. As it stands, the "2017 answer" headline is to let people know that this answer is the most up-to-date one, so at a glance they won't look at the fact the answer was posted in 2015 and go "oh, I wonder if a new fe...