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PDO closing connection
...r a number of other reasons. When connecting or running a query, catch any error, and if it is "MySQL has gone away", attempt to connect again or run the query a second time.
– Frank Forte
Dec 14 '17 at 20:50
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How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
..., run:
$ java -d64 -version
If it's not a 64-bit JVM, you'll get this:
Error: This Java instance does not support a 64-bit JVM.
Please install the desired version.
Similarly, to check for a 32-bit JVM, run:
$ java -d32 -version
If it's not a 32-bit JVM, you'll get this:
Error: This Java in...
How does interfaces with construct signatures work?
...tructor (public name: string, count: number) {
}
}
makeObj(Other); // Error! Other's constructor doesn't match StringConstructable
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Python nested functions variable scoping [duplicate]
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When I run your code I get this error:
UnboundLocalError: local variable '_total' referenced before assignment
This problem is caused by this line:
_total += PRICE_RANGES[key][0]
The documentation about Scopes and Namespaces says this:
A special ...
What is the best way to force yourself to master vi? [closed]
...|
edited Feb 23 '15 at 11:05
community wiki
2 r...
What is the difference between is_a and instanceof?
...x it now though. The problem is that the instanceof operator throws syntax errors in PHP 4, and since is_a was deprecated at the exact same time as the operator was introduced it became impossible to write code for both PHP 4 and 5 without throwing an E_STRICT around. You can't even do if (version_c...
How to retrieve POST query parameters?
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This code gave me errors as middleware is no longer bundled with Express; you'll have to use body-parser: github.com/senchalabs/connect#middleware
– araneae
Jun 13 '14 at 14:00
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javac option to compile all java files under a given directory recursively
...new source or rename an existing one file which is an easy to forget (thus error-prone) and tiresome task.
Using a build tool
On the long run it is better to use a tool that was designed to build software.
Using Ant
If you create a simple build.xml file that describes how to build the software:
<...
What does `m_` variable prefix mean?
...;
private:
std::string name; // This would lead to a compilation error.
std::string m_name; // OK.
};
main.cpp:9:19: error: duplicate member 'name'
std::string name;
^
main.cpp:6:19: note: previous declaration is here
std::string name() const;
...
How to configure git push to automatically set upstream without -u?
...s by @VonC and @Frexuz are helpful, but both of their solutions produce an error for me. Using both of their answers, I cobbled together something that works for me:
[alias]
pu = ![[ $(git config "branch.$(git symbolic-ref --short HEAD).merge") = '' ]] && git push -u origin $(git sy...