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Practical usage of setjmp and longjmp in C
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setjmp and longjmp can be very useful in unit testing.
Suppose we want to test the following module:
#include <stdlib.h>
int my_div(int x, int y)
{
if (y==0) exit(2);
return x/y;
}
Normally, if the function to test calls another function, you can decla...
Call by name vs call by value in Scala, clarification needed
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Here is an example from Martin Odersky:
def test (x:Int, y: Int)= x*x
We want to examine the evaluation strategy and determine which one is faster (less steps) in these conditions:
test (2,3)
call by value: test(2,3) -> 2*2 -> 4
call by name: test(2,3) ->...
How do I install Python OpenCV through Conda?
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conda install --channel https://conda.anaconda.org/menpo opencv3
I tested the following in python without errors:
>>> import cv2
>>>
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/bin/sh: pushd: not found
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But setting SHELL will not work in this case, see test1 in my answer, stackoverflow.com/questions/5193048/bin-sh-pushd-not-found/….
– hlovdal
Mar 4 '11 at 12:30
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is there a css hack for safari only NOT chrome?
...have issues getting something from here working on your site, DO CHECK THE TEST SITE VIA LINKS BELOW> If a hack is working there, but not on your site, the hack is not the issue - there is something else happening with your site, often just a CSS conflict as mentioned below, or perhaps nothing is...
Is it possible to push a git stash to a remote repository?
...only be confusing anyway since that wouldn't fetch all stashes, only the latest one; the list of stashes is the reflog of the ref refs/stashes.
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when I run mockito test occurs WrongTypeOfReturnValue Exception
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This is great tip. I was also having this issue when testing some Spring @Repository DAO method with @Aspect. if i do when(someDao.someMethod()).thenReturn(List<xxx>), I got this WrongTypeOfReturnValue exception. Thru debug, I can see that the someMethod method is actuall...
What is the proper way to test if a parameter is empty in a batch file?
I need to test if a variable is set or not. I've tried several techniques but they seem to fail whenever %1 is surrounded by quotes such as the case when %1 is "c:\some path with spaces" .
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How to profile a bash shell script slow startup?
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Reading this and because profiling is an important step, I've done some test and research about this whole SO question and already posted answers.
There is 4+ answer:
The first is based on @DennisWilliamson's idea but with a lot less of resource consumption
The second was my own (before this;)...
Is object empty? [duplicate]
What is the fastest way to check if an object is empty or not?
23 Answers
23
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