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What is the worst gotcha in C# or .NET? [closed]
... int myVar;
public int MyVar
{
get { return MyVar; }
}
Blammo. Your app crashes with no stack trace. Happens all the time.
(Notice capital MyVar instead of lowercase myVar in the getter.)
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How do I add a linker or compile flag in a CMake file?
...gs, C & C++ at once):
add_definitions(${GCC_COVERAGE_COMPILE_FLAGS})
Appending to corresponding CMake variables:
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}")
SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${GCC_COVERAGE_LINK_FLAGS}")
Using target propertie...
How to create a zip archive of a directory in Python?
...n subpackages as the entry point from a zipped archive.)
Zipping a Python app:
If you have python3.5+, and specifically want to zip up a Python package, use zipapp:
$ python -m zipapp myapp
$ python myapp.pyz
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Generating random numbers in Objective-C
... NB: the distribution from arc4random can be very poor, if you happen to choose a poor range. I hadn't realised the powers-of-two expectation. +1 for use @yood's version - made a noticeable difference for larger numbers (e.g. range of 400)
– Adam
Feb...
How can I use UUIDs in SQLAlchemy?
...
If you are happy with a 'String' column having UUID value, here goes a simple solution:
def generate_uuid():
return str(uuid.uuid4())
class MyTable(Base):
__tablename__ = 'my_table'
uuid = Column(String, name="uuid", pri...
How to save an activity state using save instance state?
...ing on the Android SDK platform, and it is a little unclear how to save an application's state. So given this minor re-tooling of the 'Hello, Android' example:
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Fatal error in launcher: Unable to create process using “”C:\Program Files (x86)\Python33\python.exe
...e it the accepted answer, though it's more of a workaround (or alternative approach) than an actual fix, but anyways, it is more universally applicable.
– Arc
Jan 16 '15 at 14:31
2...
Recommended way to save uploaded files in a servlet application
... world code there are circumstances where storing uploaded files in the webapp's deploy folder will not work at all. Some servers do (either by default or by configuration) not expand the deployed WAR file into the local disk file system, but instead fully in the memory. You can't create new files i...
Status bar and navigation bar appear over my view's bounds in iOS 7
I recently downloaded Xcode 5 DP to test my apps in iOS 7. The first thing I noticed and confirmed is that my view's bounds is not always resized to account for the status bar and navigation bar.
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Doing something before program exit
...g/library/atexit.html
For example, if I wanted to print a message when my application was terminating:
import atexit
def exit_handler():
print 'My application is ending!'
atexit.register(exit_handler)
Just be aware that this works great for normal termination of the script, but it won't ge...