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Is it true that one should not use NSLog() on production code?
...ions to control the defining (or lack of defining) the DEBUG_MODE.
If you select "Debug" active configuration, DEBUG_MODE will be defined, and the macro expands to the full NSLog definition.
Selecting the "Release" active configuration will not define DEBUG_MODE and your NSLogging is omitted from ...
Getting and removing the first character of a string
...cters:
x <- 'hello stackoverflow'
substring(x, 2, nchar(x))
Idea is select all characters starting from 2 to number of characters in x. This is important when you have unequal number of characters in word or phrase.
Selecting the first letter is trivial as previous answers:
substring(x,1,1...
Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
....6.1:3:
Values stored in unsigned bit-fields and objects of type unsigned char shall be represented using a pure binary notation.
C99 6.2.6.2:2:
If the sign bit is one, the value shall be modified in one of the following ways:
— the corresponding value with sign bit 0 is negated (sign and magni...
horizontal scrollbar on top and bottom of table
...nate bug: clicking the shaded area of the scrollbar no longer jumps to the selection you click. Instead, what you get is a very small and somewhat annoying increment in the position of the scrollbar.
Tested: 4 versions of Firefox (100% affected), 4 versions of Chrome (50% affected).
Here's my jsf...
Why java classes do not inherit annotations from implemented interfaces?
...nterface and I would like to annotate the interface methods so Guice could select the right methods. Even if the annotation type is annotated with Inherited annotation implementing class doesn't inherit the annotation as stated in Inherited's java doc:
...
Enable 'xp_cmdshell' SQL Server
...gure calls:
declare @prevAdvancedOptions int
declare @prevXpCmdshell int
select @prevAdvancedOptions = cast(value_in_use as int) from sys.configurations where name = 'show advanced options'
select @prevXpCmdshell = cast(value_in_use as int) from sys.configurations where name = 'xp_cmdshell'
if (@...
SQL-Server: The backup set holds a backup of a database other than the existing
...go for the restore option
Under Options on the left pane don't forget to select
Overwrite the existing database
Preserve the replication settings
That's it
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Can CSS detect the number of children an element has?
...i:first-child:nth-last-child(4) ~ li {
width: 25%;
}
The trick is to select the first child when it's also the nth-from-the-last child. This effectively selects based on the number of siblings.
Credit for this technique goes to André Luís (discovered) & Lea Verou (refined).
Don't you j...
Configuring IntelliJ IDEA for unit testing with JUnit
...or or by using Ctrl+Shift+T keyboard shortcut.
A dialog appears where you select what testing framework to use and press Fix button for the first time to add the required library jars to the module dependencies. You can also select methods to create the test stubs for.
You can find more detail...
How to resolve the C:\fakepath?
...before uploading. Now I have to upload the file to create a preview of the selected image.
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