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round() for float in C++
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there is also lround and llround for integral results
– sp2danny
Feb 23 '15 at 11:55
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Patterns for handling batch operations in REST web services?
...resources. This is less common in REST patterns, but is allowed in the URI and HTTP specs. A semicolon divides horizontally related parameters within a resource.
Update several attributes, several resources:
POST /mail/0;1;2/markAsRead;category
POSTDATA: markAsRead=true,category=junk
Update seve...
What is the result of % in Python?
...odulo operator always yields a result with the same sign as its second operand (or zero); the absolute value of the result is strictly smaller than the absolute value of the second operand [2].
Taken from http://docs.python.org/reference/expressions.html
Example 1:
6%2 evaluates to 0 because the...
Java's L number (long) specification
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There are specific suffixes for long (e.g. 39832L), float (e.g. 2.4f) and double (e.g. -7.832d).
If there is no suffix, and it is an integral type (e.g. 5623), it is assumed to be an int. If it is not an integral type (e.g. 3.14159), it is assumed to be a double.
In all other cases (byte, sho...
Apache Spark: The number of cores vs. the number of executors
I'm trying to understand the relationship of the number of cores and the number of executors when running a Spark job on YARN.
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Signed to unsigned conversion in C - is it always safe?
...unsigned values, resulting in a large result (depending on the values of u and i).
Long Answer
According to the C99 Standard:
6.3.1.8 Usual arithmetic conversions
If both operands have the same type, then no further conversion is needed.
Otherwise, if both operands have signed intege...
What's the fastest way to loop through an array in JavaScript?
...dern browsers:
https://jsben.ch/wY5fo
Currently, the fastest form of loop (and in my opinion the most syntactically obvious).
A standard for-loop with length caching
var i = 0, len = myArray.length;
while (i < len) {
// your code
i++
}
I would say, this is definitely ...
Getting the first and last day of a month, using a given DateTime object
I want to get the first day and last day of the month where a given date lies in. The date comes from a value in a UI field.
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Use RSA private key to generate public key?
I don't really understand this one:
9 Answers
9
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What does yield mean in PHP?
...eturn statement, except that instead of stopping execution of the function and returning, yield instead provides a value to the code looping over the generator and pauses execution of the generator function.
What is a generator function?
A generator function is effectively a more compact and effi...