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Most efficient way to check for DBNull and then assign to a variable?
....NET alternative to Stevo3000's suggestion:
oSomeObject.IntMember = If(TryConvert(Of Integer)(oRow("Value")), iDefault)
oSomeObject.StringMember = If(TryCast(oRow("Name"), String), sDefault)
Function TryConvert(Of T As Structure)(ByVal obj As Object) As T?
If TypeOf obj Is T Then
Retur...
How do I convert from int to String?
...ou ask for concatenation; 3. as you do not have a string, you will finally convert your int into string. The solution of daridoo avoid the first steps.
– Nicolas
Nov 5 '10 at 14:24
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How can I use “sizeof” in a preprocessor macro?
...re 'sizeof'. But in principle size_t x = (sizeof(... instead does work as intended. You have to "use" the result, somehow. To allow for this to be called multiple times either inside a function or at global scope, something like extern char _BUILD_BUG_ON_ [ (sizeof(...) ]; can be used repeatedly (...
How to join int[] to a character separated string in .NET?
...nting to do this in .NET 2.0 with C#2 can do this:
string.Join(",", Array.ConvertAll<int, String>(ints, Convert.ToString));
I find there are a number of other cases where the use of the Convert.xxx functions is a neater alternative to a lambda, although in C#3 the lambda might help the type...
Why is printing to stdout so slow? Can it be sped up?
...andle to stdout with a big buffer yourself, using something like os.fdopen(sys.stdout.fileno(), 'w', BIGNUM). This would almost never be useful, though: almost all applications would have to remember to explicitly flush after each line of user-intended output.
– Pi Delport
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Convert pem key to ssh-rsa format
...
ssh-keygen -t rsa -b 2048 -f dummy-ssh-keygen.pem -N '' -C "Test Key"
Converting DER to PEM
If you have an RSA key pair in DER format, you may want to convert it to PEM to allow the format conversion below:
Generation:
openssl genpkey -algorithm RSA -out genpkey-dummy.cer -outform DER -pkeyo...
Importing from a relative path in Python
...For example, it's popular with Django users.
You can add Common/ to your sys.path (the list of paths python looks at to import things):
import sys, os
sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'Common'))
import Common
os.path.dirname(__file__) just gives you the directory th...
Safest way to convert float to integer in python?
...s an integer out of the result of math.floor, and this answer shows how to convert a float into an integer. Take the float from math.floor and pipe it through int, problem solved: int(math.floor(2.3))
– JMTyler
Aug 19 '15 at 4:40
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Python - Get path of root project structure
...
To get the path of the "root" module, you can use:
import os
import sys
os.path.dirname(sys.modules['__main__'].__file__)
But more interestingly if you have an config "object" in your top-most module you could -read- from it like so:
app = sys.modules['__main__']
stuff = app.config.somefun...
How to convert enum value to int?
...d if values are added to the enum. You can use the enum's name() method to convert the enum value to a String an the enum's valueOf() method to create an enum representation from the String again. The following example shows how to convert the enum value to String and back (ValueType is an enum):
V...