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What is the difference between MOV and LEA?
...urpose of LEA is to allow one to perform a non-trivial address calculation and store the result [for later usage]
LEA ax, [BP+SI+5] ; Compute address of value
MOV ax, [BP+SI+5] ; Load value at that address
Where there are just constants involved, MOV (through the assembler's constant calculation...
How to search file text for a pattern and replace it with a given value
I'm looking for a script to search a file (or list of files) for a pattern and, if found, replace that pattern with a given value.
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Java's Interface and Haskell's type class: differences and similarities?
...tain t). This is because with the kind of inheritance relationship in Java and similar languages, the method called depends on the type of object they are called on, and nothing else.
That means it's really hard to make things like add :: t -> t -> t with an interface, where it is polymorphic...
Does JavaScript have the interface type (such as Java's 'interface')?
...ect with the proper methods, which would make it conform to the interface, and then undefine all the stuff that made it conform. It'd be so easy to subvert the type system -- even accidentally! -- that it wouldn't be worth it to try and make a type system in the first place.
Instead, JavaScript us...
Is inline assembly language slower than native C++ code?
I tried to compare the performance of inline assembly language and C++ code, so I wrote a function that add two arrays of size 2000 for 100000 times. Here's the code:
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What is the difference between JOIN and JOIN FETCH when using JPA and Hibernate
Please help me understand where to use a regular JOIN and where a JOIN FETCH.
5 Answers
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How to implement classic sorting algorithms in modern C++?
The std::sort algorithm (and its cousins std::partial_sort and std::nth_element ) from the C++ Standard Library is in most implementations a complicated and hybrid amalgamation of more elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort....
Choosing a Windows automation scripting language. AutoIt vs Autohotkey [closed]
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I've used both very much.
AutoHotKey is very good at managing hotkeys and basic GUI automation. It's syntax is horrible and it's not meant for bigger applications.
AutoIt has almost every feature AutoHotKey has and much more. COM-automation support, arrays and a pretty nice UDF (User Defined ...
What is the difference between public, protected, package-private and private in Java?
...ess modifiers, namely the default (package private), public , protected and private , while making class and interface and dealing with inheritance?
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Can (domain name) subdomains have an underscore “_” in it?
...perfectly legal to have
an underscore in a domain name. Let me quote the standard, RFC
2181, section 11, "Name syntax":
The DNS itself places only one restriction on the particular labels
that can be used to identify resource records. That one
restriction relates to the length of the label ...