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gem install: Failed to build gem native extension (can't find header files)
... What you say is required, but it's ruby-devel that's needed to fix the error message in question.
– Edward Anderson
Oct 25 '12 at 18:38
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How do you check in python whether a string contains only numbers?
...(that is a unicode superscript zero), does pass isdigit, but raises a ValueError if passed to int().
– danpalmer
Mar 4 '19 at 12:04
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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
...cd to the correct location before executing a command, may lead to cryptic error messages.
On Ubuntu (and probably Debian), provided you are using the "official" repo, deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main, and provided you haven't changed the default filesystem paths or run...
Where do I find the current C or C++ standard documents?
...n the standard (less useful - it contains several dangerous and misleading errors).
The C99 and C++03 standards are available in book form from Wiley and the BSI (British Standards Institute):
C++03 Standard on Amazon
C99 Standard on Amazon
Standards committee draft versions (free)
The working...
push multiple elements to array
I'm trying to push multiple elements as one array, but getting error
9 Answers
9
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How to enable or disable an anchor using jQuery?
...anchor again
anchor.removeData("disabled");
},
error: function () {
// there was an error, enable the anchor
anchor.removeData("disabled");
}
});
return false;
});
I made a jsfiddle example: http://jsfiddle.net/wgZ59/76/
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How do I create a dynamic key to be added to a JavaScript object variable [duplicate]
...ata.gname; connect_clients.push({[key]:val}); } i get error when i run the node.js error in ({[key]) dont knw why
– ujwal dhakal
Nov 24 '15 at 14:14
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All Ruby tests raising: undefined method `authenticate' for nil:NilClass
...wing and I don't understand why. All methods call raise the 'authenticate' error. I've checked the code if there was a method called "authenticate" but there is no such method.
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Sending POST data in Android
...ception e) {
// displayLoding(false);
Log.e(TAG, "Error ...");
}
Log.e(TAG, "5 - after Response...");
if (!response.equalsIgnoreCase("")) {
try {
Log.e(TAG, "6 - response !empty...");
//
JSO...
What does gcc's ffast-math actually do?
...
@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...