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“:” (colon) in C struct - what does it mean? [duplicate]
...nd their contents at run
time are unpredictable. They can be used as "dummy" fields, for
alignment purposes. An unnamed bit field whose width is specified as 0
guarantees that storage for the member following it in the
struct-declaration-list begins on an int boundary.
This example defi...
How to determine whether code is running in DEBUG / RELEASE build?
...ef DEBUG and none of them saying how to determinate debug/release build.
My opinion:
Edit scheme -> run -> build configuration :choose debug / release . It can control the simulator and your test iPhone's code status.
Edit scheme -> archive -> build configuration :choose debug / re...
sendmail: how to configure sendmail on ubuntu? [closed]
...nfigured and setup by typing the following into the command line:
$ echo "My test email being sent from sendmail" | /usr/sbin/sendmail myemail@domain.com
The following will allow you to add smtp relay to sendmail:
#Change to your mail config directory:
cd /etc/mail
#Make a auth subdirectory
mkd...
Unzipping files in Python
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Thank you for your attention @MylesHollowed However, this is not a copy from the accepted answer. I agree that they are similar to each other, but they are different. This is also indicated by your comment, because the accepted one is definitely better f...
Convert a python dict to a string and back
... json
# convert to string
input = json.dumps({'id': id })
# load to dict
my_dict = json.loads(input)
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How do I make a redirect in PHP?
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Summary of existing answers plus my own two cents:
1. Basic answer
You can use the header() function to send a new HTTP header, but this must be sent to the browser before any HTML or text (so before the <!DOCTYPE ...> declaration, for example).
header...
Specifically, what's dangerous about casting the result of malloc?
...st to prevent this error is mostly the same reasoning as writing
if (0 == my_var)
instead of
if (my_var == 0)
since the latter could lead to a serious bug if one would confuse = and ==, whereas the first one would lead to a compile error. I personally prefer the latter style since it better re...
Rake just one migration
I'm trying to run just one migration out of a whole bunch in my rails app. How can I do this? I don't want to run any of the migrations before or after it. Thanks.
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Eclipse: The declared package does not match the expected package
...ath / Use as source folder" and nothing works anymore. Edit: The answer to my question is to go into "Configure Build Path" and remove the funky thing from the list that isn't src/ or gen/
– ArtOfWarfare
Oct 14 '12 at 20:34
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Ruby on Rails generates model field:type - what are the options for field:type?
...l and forget the syntax for referencing another model's ID. I'd look it up myself, but I haven't figured out, among all my Ruby on Rails documentation links, how to find the definitive source.
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