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Default value to a parameter while passing by reference in C++
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if i make it const, will it allow me to pass a different address to the function? or will the address of State be always 0 and so meaningless?
– Sony
Jun 29 '09 at 18:10
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Moving decimal places over in a double
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If you use double or float, you should use rounding or expect to see some rounding errors. If you can't do this, use BigDecimal.
The problem you have is that 0.1 is not an exact representation, and by performing the calculat...
How can I check if a method is static using reflection?
...un-time ONLY the static Methods of a class, how can I do this?
Or, how to differentiate between static and non-static methods.
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Logging Clientside JavaScript Errors on Server [closed]
...to tell the server what went wrong, however since it's not part of any specification, support is somewhat flaky.
Here's an example from Using XMLHttpRequest to log JavaScript errors:
window.onerror = function(msg, url, line)
{
var req = new XMLHttpRequest();
var params = "msg=" + encodeURIComp...
How to install packages using pip according to the requirements.txt file from a local directory?
...ly looking at --find-links URLs instead).
-f, --find-links <URL> - If a URL or path to an html file, then parse for links to archives.
If a local path or file:// URL that's a directory, then look for archives in the directory listing.
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jQuery Click fires twice when clicking on label
... on the label that associated with the radio the click events fires twice, if i click only on the radio itself it's working fine (well actually it's not the radio i am clicking but the div that wraps the whole input and label). Here is the code:
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How do you manage databases in development, test, and production?
...o keep track of the current database version, and only execute the scripts if they are for a newer version.
Use a migration solution. These solutions vary by language, but for .NET I use Migrator.NET. This allows you to version your database and move up and down between versions. Your schema is s...
Reading an Excel file in PHP [closed]
... can handle .xls-files, but not .xlsx files. PHPExcel can handle a lot of different formats (including .xls and .xlsx) (github.com/PHPOffice/Phpexcel) and is in stable version. PHPSpreadsheet is a further development of PHPExcel but is not stable (as I'm writing this): github.com/PHPOffice/PhpSpread...
Can a Windows batch file determine its own file name?
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%0 returns the way the file was called. If a full path was used, %0 will have that. If you cd into the dir first and execute the batch from there, %0 will usually not have the path info (but you could get that from %cd% in that case)
– Gogowit...
Converting BigDecimal to Integer
...l.intValueExact() (or just intValue()) and it will even throw an exception if you would lose information. That returns an int but autoboxing takes care of that.
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