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Efficiency of premature return in a function
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There is no difference at all:
=====> cat test_return.cpp
extern void something();
extern void something2();
void test(bool b)
{
if(b)
{
something();
}
else
something2();
}
=====> cat test_return2.cpp
extern void something();
exter...
One line if-condition-assignment
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you can use one of the following:
(falseVal, trueVal)[TEST]
TEST and trueVal or falseVal
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How do I read CSV data into a record array in NumPy?
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I tested code similar to this with a csv file containing 2.6 million rows and 8 columns. numpy.recfromcsv() took about 45 seconds, np.asarray(list(csv.reader())) took about 7 seconds, and pandas.read_csv() took about 2 seconds ...
#ifdef replacement in the Swift language
... usual, you can set a different value when in Debug or when in Release.
I tested it in real code and it works; it doesn't seem to be recognized in a playground though.
You can read my original post here.
IMPORTANT NOTE: -DDEBUG=1 doesn't work. Only -D DEBUG works. Seems compiler is ignoring a f...
How do I use spaces in the Command Prompt?
...y case: python ""C:\Program Files (x86)\Jenkins\workspace\Map Checker Unit Test\sqs-poller\node_modules\map-checker\python\unit_test.py" -d "C:\Program Files (x86)\Jenkins\workspace\Map Checker Unit Test\MAP_CHECK_TMP\#Test Case" -o "C:\Program Files (x86)\Jenkins\workspace\Map Checker Unit Test\MAP...
What is “assert” in JavaScript?
...sertion checking. Usually assertions (as they're called) are used only in "testing" or "debug" builds and stripped out of production code.
Suppose you had a function that was supposed to always accept a string. You'd want to know if someone called that function with something that wasn't a string. ...
Test if object implements interface
...tance(object);
}
For example,
java.io.Serializable.class.isInstance("a test string")
evaluates to true.
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How to use if - else structure in a batch file?
... and B) THEN X ELSE Y, but in fact means IF A( IF B THEN X ELSE Y). If the test of A fails, then he whole of the inner if-else will be ignored.
As one of the answers mentioned, in this case only one of the tests can succeed so the 'else' is not needed, but of course that only works in this example,...
Python decorators in classes
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Would something like this do what you need?
class Test(object):
def _decorator(foo):
def magic( self ) :
print "start magic"
foo( self )
print "end magic"
return magic
@_decorator
def bar( self ) :
prin...
How to mock void methods with Mockito
... call, presumably if you want to do something else with that value in your test.
– twelve17
Sep 7 '14 at 15:44
1
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