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Is optimisation level -O3 dangerous in g++?
I have heard from various sources (though mostly from a colleague of mine), that compiling with an optimisation level of -O3 in g++ is somehow 'dangerous', and should be avoided in general unless proven to be necessary.
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Naming Classes - How to avoid calling everything a “Manager”? [closed]
A long time ago I have read an article (I believe a blog entry) which put me on the "right" track on naming objects: Be very very scrupulous about naming things in your program.
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What's the simplest way to subtract a month from a date in Python?
If only timedelta had a month argument in it's constructor. So what's the simplest way to do this?
20 Answers
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Java SafeVarargs annotation, does a standard or best practice exist?
I've recently come across the java @SafeVarargs annotation. Googling for what makes a variadic function in Java unsafe left me rather confused (heap poisoning? erased types?), so I'd like to know a few things:
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conditional unique constraint
I have a situation where i need to enforce a unique constraint on a set of columns, but only for one value of a column.
6 A...
Algorithm to return all combinations of k elements from n
I want to write a function that takes an array of letters as an argument and a number of those letters to select.
71 Answe...
Java 8 Streams - collect vs reduce
When would you use collect() vs reduce() ? Does anyone have good, concrete examples of when it's definitely better to go one way or the other?
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Why is there no Constant feature in Java?
I was trying to identify the reason behind constants in Java
I have learned that Java allows us to declare constants by using final keyword.
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How does an underscore in front of a variable in a cocoa objective-c class work?
I've seen in a few iPhone examples that attributes have used an underscore _ in front of the variable. Does anyone know what this means? Or how it works?
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Data access object (DAO) in Java
I was going through a document and I came across a term called DAO . I found out that it is a Data Access Object. Can someone please explain me what this actually is?
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