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Different floating point result with optimization enabled - compiler bug?
...epted answer is correct if you are compiling to an x86 target that doesn't include SSE2. All modern x86 processors support SSE2, so if you can take advantage of it, you should:
-mfpmath=sse -msse2 -ffp-contract=off
Let's break this down.
-mfpmath=sse -msse2. This performs rounding by using SSE2 ...
What are Aggregates and PODs and how/why are they special?
...egates is essential for defining PODs. If you find any errors (even minor, including grammar, stylistics, formatting, syntax, etc.) please leave a comment, I'll edit.
This answer applies to C++03. For other C++ standards see:
C++11 changes
C++14 changes
C++17 changes
What are aggregates and wh...
SQL update fields of one table from fields of another one
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What is the best way to force yourself to master vi? [closed]
...n, i.e. Moving the Cursor, Editing, Searching, etc. I was careful to only include the most commonly used commands I did not know. The idea is to create a quick reference that is also an aid in memorization – not to replace the available help screens. Then I printed this list and taped it to the ...
Git Symlinks in Windows
...lnk_bar/nuthafile # POLLUTION
#
Whoops...
For this reason, it's nice to include these aliases as steps to perform for Windows users before-and-after building a project, rather than after checkout or before pushing. But each situation is different. These aliases have been useful enough for me that...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...ob is to produce random numbers quickly. It's really simple: just take the old value, multiply by a double , and take the decimal part.
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How to detect if multiple keys are pressed at once using JavaScript?
...lerts or anything that takes focus from the main window, you might want to include map = [] to reset the array after the condition is done. This is because some things, like alert(), take the focus away from the main window and cause the 'keyup' event to not trigger. For example:
if(map[17] &&am...