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Why does integer division in C# return an integer and not a float?
...nteger division in C# returns an integer and not a float?
What is the idea behind it? (Is it only a legacy of C/C++?)
7 Ans...
How to maintain a Unique List in Java?
How to create a list of unique/distinct objects (no duplicates) in Java?
7 Answers
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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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chaoschaos
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Angular.js: How does $eval work and why is it different from vanilla eval?
I was curious about the $scope.$eval you so often see in directives, so I checked out the source and found the following in rootScope.js :
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How are GCC and g++ bootstrapped?
This has been bugging me for a while. How do GCC and g++ compile themselves?
1 Answer
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Create directories using make file
...${OUT_DIR}
${OUT_DIR}:
${MKDIR_P} ${OUT_DIR}
This would have to be run in the top-level directory - or the definition of ${OUT_DIR} would have to be correct relative to where it is run. Of course, if you follow the edicts of Peter Miller's "Recursive Make Considered Harmful" paper, then ...
Transform DateTime into simple Date in Ruby on Rails
I have a datetime column in db that I want to transform into a simple date when I show it to users.
6 Answers
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How to use Class in Java?
There's a good discussion of Generics and what they really do behind the scenes over at this question , so we all know that Vector<int[]> is a vector of integer arrays, and HashTable<String, Person> is a table of whose keys are strings and values Person s.
However, what stumps me ...
How do I deep copy a DateTime object?
...Y'));
Update:
If you want to copy rather than reference an existing DT object, use clone, not =.
$a = clone $b;
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Why is conversion from string constant to 'char*' valid in C but invalid in C++
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Up through C++03, your first example was valid, but used a deprecated implicit conversion--a string literal should be treated as being of type char const *, since you can't modify its contents (without causing undefined behavior).
As of C++11, the implicit conversion that...