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Efficient way to return a std::vector in c++
...s "return by value" might be, it's the kind of code that can lead one into error. Consider the following program:
#include <string>
#include <vector>
#include <iostream>
using namespace std;
static std::vector<std::string> strings;
std::vector<std...
Creating runnable JAR with Gradle
...to run jar file with java -jar build/libs/core-all-1.0.jar I get following error: Error: Could not find or load main class scanners.exchange.Main Caused by: java.lang.ClassNotFoundException: scanners.exchange.Main Do you know how I can solve this?
– Luka Lopusina
...
How to make a class conform to a protocol in Swift?
...onform to protocol 'UITableViewDataSource'
Is expected. You will get the error until your class implements all required methods of the protocol.
So get coding :)
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Is it better to return null or empty collection?
... or "don't know". We could throw an exception, but it's not necessarily an error condition, and it doesn't necessarily drive us out of the normal program flow.
I've often been frustrated by systems that cannot distinguish between zero and no answer. I've had a number of times where a system has ask...
What is the difference between dynamic and static polymorphism in Java?
...
This answer full of errors: (1) Method overloading is not dynamic polymorphism. It is static polymorphism. (2) Static methods are never overridden, they are hidden/shadowed. (3) Private methods are not "overridden". They are never inherited in t...
Convert a string to int using sql query
...sults. It will return TRUE for the string "-.", which will still cause an error when you try to cast it to a number.
– Curt
Jul 25 '13 at 2:22
3
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How do you modify a CSS style in the code behind file for divs in ASP.NET?
... aspx page. The following is essentially what I am trying to do, but I get errors.
4 Answers
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Django auto_now and auto_now_add
...etime object depending on settings.USE_TZ.
To address why the OP saw the error, I don't know exactly, but it looks like created isn't even being populated at all, despite having auto_now_add=True. To me it stands out as a bug, and underscores item #1 in my little list above: auto_now and auto_no...
Is there an S3 policy for limiting access to only see/access one bucket?
...s to the user is needed so that AWS S3 console or S3Fox connect without an error message. But ListAllMyBuckets lists all buckets, regardles of the resources assigned (actually, only arn:...:::* works). That's a serious bug, if you ask me. Btw. denying ListBucket for all buckets does not prevent them...
Can you require two form fields to match with HTML5?
...e Matching.');
} else {
// input is valid -- reset the error message
input.setCustomValidity('');
}
}
</script>
<br /><br />
<input type="submit" />
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