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Why is address zero used for the null pointer?
In C (or C++ for that matter), pointers are special if they have the value zero: I am adviced to set pointers to zero after freeing their memory, because it means freeing the pointer again isn't dangerous; when I call malloc it returns a pointer with the value zero if it can't get me memory; I use ...
What are the differences between “generic” types in C++ and Java?
Java has generics and C++ provides a very strong programming model with template s.
So then, what is the difference between C++ and Java generics?
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Is it possible to modify variable in python that is in outer, but not global, scope?
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9 Answers
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What is a “surrogate pair” in Java?
I was reading the documentation for StringBuffer , in particular the reverse() method. That documentation mentions something about surrogate pairs . What is a surrogate pair in this context? And what are low and high surrogates?
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Creating C formatted strings (not printing them)
I have a function that accepts a string, that is:
7 Answers
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What's the shortest code to cause a stack overflow? [closed]
To commemorate the public launch of Stack Overflow, what's the shortest code to cause a stack overflow? Any language welcome.
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Differences between Perl and PHP [closed]
I'm planning to learn Perl 5 and as I have only used PHP until now, I wanted to know a bit about how the languages differ from each other.
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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
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