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Throwing exceptions from constructors
...body who creates the object of mutex has to remember that init() has to be called. I feel it goes against the RAII principle.
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How to set commands output as a variable in a batch file
...e USEBACKQ so that if you have a string to insert or a long file name, you can use your double quotes without screwing up the command.
Now if your output will contain multiple lines, you can do this
SETLOCAL ENABLEDELAYEDEXPANSION
SET count=1
FOR /F "tokens=* USEBACKQ" %%F IN (`command`) DO (
SE...
How to check an Android device is HDPI screen or MDPI screen?
...@SteD is it possible to tell what a device is going to be? eg consider the case where the dpi is 140 in the middle of the bucket range? does it round down or up?
– wal
Jun 29 '16 at 6:12
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Formatting a float to 2 decimal places
... a sales module for a clients website. So far I have got the sale price to calculate perfectly but where I have come stuck is formatting the output to 2 decimal places.
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make: Nothing to be done for `all'
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Sometimes "Nothing to be done for all" error can be caused by spaces before command in makefile rule instead of tab. Please ensure that you use tabs instead of spaces inside of your rules.
all:
<\t>$(CC) $(CFLAGS) ...
instead of
all:
$(CC) $(CFLAGS) ...
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How do I “undo” a --single-branch clone?
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You can tell Git to pull all branches like this:
git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*"
git fetch origin
If you look in .git/config, it'll look something like this:
[core]
repositoryformatver...
Notification passes old Intent Extras
i am creating a notification inside a BroadcastReceiver via this code:
6 Answers
6
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Add Text on Image using PIL
I have an application that loads an Image and when the user clicks it, a text area appears for this Image (using jquery ), where user can write some text on the Image. Which should be added on Image.
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How to do ssh with a timeout in a script?
...add to known_hosts, and StrictHostKeyChecking adds the fingerprint automatically.
**** NOTE ****
The "StrictHostKeyChecking" was only intended for internal networks where you trust you hosts. Depending on the version of the SSH client, the "Are you sure you want to add your fingerprint" can cause ...
Case insensitive XPath contains() possible?
...known beforehand. Add any accented characters you expect to see.
If you can, mark the text that interests you with some other means, like enclosing it in a <span> that has a certain class while building the HTML. Such things are much easier to locate with XPath than substrings in the elemen...