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Difference between a Structure and a Union
...ory values, let's set and print out the values in hex:
union foo x;
x.a = 0xDEADBEEF;
x.b = 0x22;
printf("%x, %x\n", x.a, x.b);
prints
deadbe22, 22
You can clearly see where the 0x22 overwrote the 0xEF.
BUT
In C, the order of bytes in an int are not defined. This program overwrote the 0xEF w...
What is the difference between g++ and gcc?
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What do 3 dots next to a parameter type mean in Java?
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1025
It means that zero or more String objects (or a single array of them) may be passed as the arg...
Java: Instanceof and Generics
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80
The error message says it all. At runtime, the type is gone, there is no way to check for it.
Y...
How do I find the MySQL my.cnf location
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590
There is no internal MySQL command to trace this, it's a little too abstract. The file might be...
How to check if UILabel is truncated?
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20 Answers
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Why is a combiner needed for reduce method that converts type in java 8
...ch; int cannot be converted to java.lang.String. Actually, I think passing 0 as the identity value is also wrong here, since a String is expected (T).
Also note that this version of reduce processes a stream of Ts and returns a T, so you can't use it to reduce a stream of String to an int.
The thr...
java.net.ConnectException: Connection refused
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330
This exception means that there is no service listening on the IP/port you are trying to connect...
git + LaTeX workflow
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answered May 31 '11 at 16:09
abcdabcd
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Uploading images using Node.js, Express, and Mongoose
...eived, bytesExpected){
var percent = (bytesReceived / bytesExpected * 100) | 0;
process.stdout.write('Uploading: %' + percent + '\r');
});
});
app.listen(3000);
console.log('Express app started on port 3000');
sh...