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What does gcc's ffast-math actually do?
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@user: The magnitude of the error depends on the input data. It should be small relative to the result. For example, if x is smaller than 10, the error in Mystical's example will be down around 10^-10. But if x = 10e20, the error is likely to be many...
Static Classes In Java
... // MyStaticClass x = new MyStaticClass(); // results in compile time error
}
}
// A top-level Java class mimicking static class behavior
public final class MyStaticClass {
private MyStaticClass () { // private constructor
myStaticMember = 1;
}
private static int mySta...
Writing to output window of Visual Studio
...ied Debug.Write , Console.Write , and Trace.Write . It does not give an error, but it does not print anything either.
13...
How to set request headers in rspec request spec?
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Yeah. In rspec it raises ndefined method 'header' error for me.
– Евгений Масленков
Oct 19 '17 at 10:11
add a comment
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What is the difference between an int and an Integer in Java and C#?
...mitive. So:
String s = i.toString();//will not work!!!
would produce an error, because int is not an object.
int is one of the few primitives in Java (along with char and some others). I'm not 100% sure, but I'm thinking that the Integer object more or less just has an int property and a whole b...
git pull while not in a git directory
...a no-op when <path> is empty.
'git -C ""' unhelpfully dies with error "Cannot change to ''", whereas the shell treats cd ""' as a no-op.
Taking the shell's behavior as a precedent, teach git to treat -C ""' as a no-op, as well.
4 years later, Git 2.23 (Q3 2019) documents that 'git ...
Display number with leading zeros
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x = "%02d.txt" % i raises TypeError (cannot concatenate 'str' and 'int' objects), but x = "%02d.txt" % (i,) does not. Interesting. I wonder where is that documented
– theta
Nov 5 '12 at 18:10
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PHP YAML Parsers [closed]
...e wanted something that was "easy to use, fast, unit tested and had clear error messages."
spyc: YAML parser without dependencies
At the time of this writing, the latest versions release dates for the aforementioned libraries and the versions of the YAML spec (1.2 is the latest version) they sup...
How to get image height and width using java?
...ew Dimension(width, height);
} catch (IOException e) {
log.warn("Error reading: " + imgFile.getAbsolutePath(), e);
} finally {
reader.dispose();
}
}
throw new IOException("Not a known image file: " + imgFile.getAbsolutePath());
}
I guess my rep is not high enough for m...
MySQL: multiple tables or one table with many columns?
...char columns, all UTF8. So we easily filled the ~8000 bytes limit and got "error 139 from storage engine" all the time. So we had to split the table. (We tested with the newer Barracuda format and it worked without splitting, but our client's servers still use MySQL 5.0).
– MV....