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Why do I get a warning every time I use malloc?
...hat, the compiler thinks you want to define your own function named malloc and it warns you because:
You don't explicitly declare it and
There already is a built-in function by that name which has a different signature than the one that was implicitly declared (when a function is declared implicit...
What's the difference between using INDEX vs KEY in MySQL?
I know how to use INDEX as in the following code. And I know how to use foreign key and primary key .
5 Answers
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jQuery Plugin: Adding Callback functionality
I'm trying to give my plugin callback functionality, and I'd like for it to operate in a somewhat traditional way:
6 Answer...
symbolic link: find all files that link to this file
...is the only good way:
find -L / -samefile path/to/foo.txt
On the other hand, if you are just trying to find links to any file that happens to be named foo.txt, then something like
find / -lname foo.txt
or
find . -lname \*foo.txt # ignore leading pathname components
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How get integer value from a enum in Rails?
...ork if the model has not been saved. The sale_info_before_type_cast value (and my_model[:sale_info]) is still a string if it my_model.sale_info has been assigned a string without a subsequent save.
– Tim Smith
Oct 9 '16 at 5:49
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Array initializing in Scala
...ed here: stackoverflow.com/questions/13862568/…)
– Anderson Green
Jun 14 '13 at 22:50
add a...
How do you delete all text above a certain line
...hing from your current line to the top of the file.
d is the deletion command, and gg is a movement command that says go to the top of the file, so when used together, it means delete from my current position to the top of the file.
Also
dG
will delete all lines at or below the current one
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Is there a way to tell git to only include certain files instead of ignoring certain files?
...
*.c
!frob_*.c
!custom.c
To have it ignore all .c files except custom.c and anything starting with "frob_"
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“User interaction is not allowed” trying to sign an OSX app using codesign
.../thread/311971. Thanks ashish agrawal!
Login your build user via the GUI and open Keychain Access. Select your signing private key, right-click, choose Get Info, change to the Access Control tab and select the "Allow all applications to access this item".
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How is Generic Covariance & Contra-variance Implemented in C# 4.0?
...t I heard some news that C# 4.0 is announced to support Generic covariance and contra-variance. That is, List<string> can be assigned to List<object> . How could that be?
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