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Clang vs GCC for my Linux Development project
I'm in college, and for a project we're using C. We've explored GCC and Clang, and Clang appears to be much more user friendly than GCC. As a result, I'm wondering what the advantages or disadvantages are to using clang, as opposed to GCC, for developing in C and C++ on Linux?
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How to match any non white space character except a particular one?
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You can use a character class:
/[^\s\\]/
matches anything that is not a whitespace character nor a \. Here's another example:
[abc] means "match a, b or c"; [^abc] means "match any character except a, b or c".
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How to make a cross-module variable?
The __debug__ variable is handy in part because it affects every module. If I want to create another variable that works the same way, how would I do it?
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How to use hex color values
I am trying to use hex color values in Swift, instead of the few standard ones that UIColor allows you to use, but I have no idea how to do it.
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?
How can the theoretical peak performance of 4 floating point operations (double precision) per cycle be achieved on a modern x86-64 Intel CPU?
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What is the purpose and use of **kwargs?
What are the uses for **kwargs in Python?
13 Answers
13
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What is the difference between a pseudo-class and a pseudo-element in CSS?
Things like a:link or div::after ...
8 Answers
8
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Rails: fields_for with index?
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The answer below was posted many years ago, for a modern approach see:
https://stackoverflow.com/a/22640703/105403
This would actually be a better approach, following Rails documentation more closely:
<% @questions.each.with_index do |question,index| %>
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Are there benefits of passing by pointer over passing by reference in C++?
What are the benefits of passing by pointer over passing by reference in C++?
7 Answers
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Adding a UILabel to a UIToolbar
I'm trying to add a label to my toolbar. Button works great, however when I add the label object, it crashes. Any ideas?
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