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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
I first noticed in 2009 that GCC (at least on my projects and on my machines) have the tendency to generate noticeably faster code if I optimize for size ( -Os ) instead of speed ( -O2 or -O3 ), and I have been wondering ever since why.
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How to add facebook share button on my website?
I have this code that suppose to work, but doesn't work. If this helps you in anyway that would be great.
7 Answers
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Convert JSON string to dict using Python
I'm a little bit confused with JSON in Python.
To me, it seems like a dictionary, and for that reason
I'm trying to do that:
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Using sed and grep/egrep to search and replace
I am using egrep -R followed by a regular expression containing about 10 unions, so like:
.jpg | .png | .gif etc. This works well, now I would like to replace all strings found with .bmp
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Delete branches in Bitbucket
I've created lots of branches in one of our repositories. Those branches are for testing before it will be pulled to the master. Now I see lots of them on the list and they we will never use it again. How to delete those branches directly to Bitbucket?
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Round a Floating Point Number Down to the Nearest Integer?
As the title suggests, I want to take a floating point number and round it down to the nearest integer. However, if it's not a whole, I ALWAYS want to round down the variable, regardless of how close it is to the next integer up. Is there a way to do this?
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What is the native keyword in Java for?
While playing this puzzle (It's a Java keyword trivia game), I came across the native keyword.
10 Answers
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ObjectiveC Parse Integer from String
I'm trying to extract a string (which contains an integer) from an array and then use it as an int in a function. I'm trying to convert it to a int using intValue.
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Unzip All Files In A Directory
I have a directory of ZIP files (created on a Windows machine). I can manually unzip them using unzip filename , but how can I unzip all the ZIP files in the current folder via the shell?
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