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Functional, Declarative, and Imperative Programming [closed]
What do the terms functional, declarative, and imperative programming mean?
14 Answers
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What's the difference between Perl's backticks, system, and exec?
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exec
executes a command and never returns.
It's like a return statement in a function.
If the command is not found exec returns false.
It never returns true, because if the command is found it never returns at all.
There is also no point ...
Window Features - 更多技术 - 清泛网 - 专注C/C++及内核技术
...overview discusses features of windows such as window types, states, size, and position.Window TypesOverlapped...This overview discusses features of windows such as window types, states, size, and position.
Window Types
Overlapped Windows
Pop-up Windows
Child Windows
Layered Windows
Mes...
JSON, REST, SOAP, WSDL, and SOA: How do they all link together
Currently doing some exams and I'm struggling through some concepts. These have all been 'mentioned' in my notes really but I didn't really understand how they all linked together. As far as my understanding is:
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What are the rules for evaluation order in Java?
I am reading some Java text and got the following code:
5 Answers
5
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List of foreign keys and the tables they reference
...o find a query which will return me a list of the foreign keys for a table and the tables and columns they reference. I am half way there with
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Please explain the exec() function and its family
What is the exec() function and its family? Why is this function used and how does its work?
7 Answers
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Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
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This approach will use the actual boolean type (and resolve to true and false) if the compiler supports it. (specifically, C++)
However, it would be better to check whether C++ is in use (via the __cplusplus macro) and actually use true and false.
In a C compiler, this i...
Is multiplication and division using shift operators in C actually faster?
Multiplication and division can be achieved using bit operators, for example
19 Answers
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Difference between volatile and synchronized in Java
... am wondering at the difference between declaring a variable as volatile and always accessing the variable in a synchronized(this) block in Java?
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