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To switch from vertical split to horizontal split fast in Vim
How can you switch your current windows from horizontal split to vertical split and vice versa in Vim?
8 Answers
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Seeding the random number generator in Javascript
Is it possible to seed the random number generator (Math.random) in Javascript?
13 Answers
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How to HTML encode/escape a string? Is there a built-in?
I have an untrusted string that I want to show as text in an HTML page. I need to escape the chars ' < ' and ' & ' as HTML entities. The less fuss the better.
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Get the closest number out of an array
I have a number from minus 1000 to plus 1000 and I have an array with numbers in it. Like this:
20 Answers
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What is the best regular expression to check if a string is a valid URL?
How can I check if a given string is a valid URL address?
55 Answers
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How to automatically generate a stacktrace when my program crashes
I am working on Linux with the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace.
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Ternary operator is twice as slow as an if-else block?
I read everywhere that ternary operator is supposed to be faster than, or at least the same as, its equivalent if - else block.
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The performance impact of using instanceof in Java
I am working on an application and one design approach involves extremely heavy use of the instanceof operator. While I know that OO design generally tries to avoid using instanceof , that is a different story and this question is purely related to performance. I was wondering if there is any per...
How can one print a size_t variable portably using the printf family?
I have a variable of type size_t , and I want to print it using printf() . What format specifier do I use to print it portably?
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Is errno thread-safe?
In errno.h , this variable is declared as extern int errno; so my question is, is it safe to check errno value after some calls or use perror() in multi-threaded code. Is this a thread safe variable? If not, then whats the alternative ?
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