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Concept of void pointer in C programming
...zing a function which can receive pointer and store it in void pointer and by using that void pointer we can make a generalized function..
You cannot just dereference it in a portable way, as it may not be properly aligned. It may be an issue on some architectures like ARM, where pointer to a data...
The role of #ifdef and #ifndef
...Text inside an ifdef/endif or ifndef/endif pair will be left in or removed by the pre-processor depending on the condition. ifdef means "if the following is defined" while ifndef means "if the following is not defined".
So:
#define one 0
#ifdef one
printf("one is defined ");
#endif
#ifndef one...
Static methods - How to call a method from another method?
...a class method takes the class as the implicit first argument (usually cls by convention). With that in mind, here's how you would do that:
If it's a static method:
test.dosomethingelse()
If it's a class method:
cls.dosomethingelse()
...
About Python's built in sort() method
...he commonly used definitions, quicksort is unstable - that is the original ordering of two objects is not preserved, if they are equal during this sort. Having an unstable sort algorithm means that you have to come up with all sorts of 'magic' to sensibly sort data with multiple criteria, rather tha...
MySQL Fire Trigger for both Insert and Update
...'t use AND/OR operators like in Oracle, even more when we also can't pass by parameter to a procedure the whole variables OLD and NEW. My code will be > 2x
– Mikel
Nov 26 '13 at 8:13
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How do I remove the “extended attributes” on a file in Mac OS X?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Direct vs. Delegated - jQuery .on()
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Ruby convert Object to Hash
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instance_values can be used for all ruby objects for the similar output.
– bishal
Jan 22 '19 at 11:37
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How can I read large text files in Python, line by line, without loading it into memory?
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@rochacbruno, Reading the lines in reverse order is not as easy to do efficiently unfortunately. Generally you would want to read from the end of the file in sensible sized chunks (kilobytes to megabytes say) and split on newline characters ( or whatever the line endi...
Test parameterization in xUnit.net similar to NUnit
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xUnit offers a way to run parameterized tests through something called data theories. The concept is equivalent to the one found in NUnit but the functionality you get out of the box is not as complete.
Here's an example:
[Theory]
[InlineData("Foo")]
[InlineData(9)]
[InlineData(true)]
pu...