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PermGen elimination in JDK 8
... get a java.lang.OutOfMemoryError: PermGen error.
The JDK 8 HotSpot JVM is now using native memory for the representation of class metadata and is called Metaspace. Read More>>
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How can I preview a merge in git?
...seems to be that most people are looking for "the safe way". Strategy 2 is now more of a note that you can simply abort the merge if the merge has conflicts that you're not ready to deal with. Keep in mind if reading comments!]
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What's the best free C++ profiler for Windows? [closed]
... and I use PIX for Xbox 360 and found it very good, but it's not free. I know the Intel VTune , but it's not free either.
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Git submodule push
...e code in submodule-config in a similar way to fetch.
The git config doc now include:
push.recurseSubmodules:
Make sure all submodule commits used by the revisions to be pushed are available on a remote-tracking branch.
If the value is 'check', then Git will verify that all submo...
Error: Jump to case label
...}
dostuff(i);
break;
}
case 2:
dostuff(123); // Now you cannot use i accidentally
}
Edit
To further elaborate, switch statements are just a particularly fancy kind of a goto. Here's an analoguous piece of code exhibiting the same issue but using a goto instead of a switc...
How to grep a text file which contains some binary data?
...binary files are treated differently:
When searching binary data, grep now may treat non-text bytes as line
terminators. This can boost performance significantly.
So what happens now is that with binary data, all non-text bytes
(including newlines) are treated as line terminators. If you wan...
Relative imports in Python 2.7
...running a Python file, and importing that file from somewhere else. Just knowing what directory a file is in does not determine what package Python thinks it is in. That depends, additionally, on how you load the file into Python (by running or by importing).
There are two ways to load a Python f...
Reloading submodules in IPython
...ole. Unfortunately I am not very happy with workflow that I am using right now, I would appreciate some advice.
13 Answers
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Is < faster than
...- B < 0
A = B --> A - B = 0
A > B --> A - B > 0
Now, when A < B the subtraction has to borrow a high-bit for the subtraction to be correct, just like you carry and borrow when adding and subtracting by hand. This "borrowed" bit was usually referred to as the carry bit a...
Why is no one using make for Java?
... has a lot of "features" that may have made sense when it was written, but now are more like bugs, e.g., you must use a TAB character, not spaces, in certain places. That sort of thing probably doesn't bother people who are really experienced in make, but it drives the rest of us nuts.
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