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Signed to unsigned conversion in C - is it always safe?
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Short Answer
Your i will be converted to an unsigned integer by adding UINT_MAX + 1, then the addition will be carried out with the 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 arithmet...
How to get enum value by string or int
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@Johannes What do you mean by that? There is a generic way, refer my answer and others too.
– Sriram Sakthivel
May 9 '14 at 12:39
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target input by type and name (selector)
... however as a lot of the modern browsers implement the document.getElementsByClassName method which will be used to select elements and be much faster than selecting by the name attribute
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im...
Control the dashed border stroke length and distance between strokes
...n't know any fine tuning on it, you should work with images as recommended by Ham.
Reference: http://www.w3.org/TR/CSS2/box.html#border-style-properties
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How do you delete a column by name in data.table?
...repl() initally and it didn't work, as data.table columns can't be indexed by a logical vector. But I now realize that grepl() can be made to work by wrapping it with which(), so that it returns an integer vector.
– Josh O'Brien
Feb 8 '12 at 23:38
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Access nested dictionary items via a list of keys?
...ists or a mix of dictionaries and lists, so the names should really be get_by_path() and set_by_path():
from functools import reduce # forward compatibility for Python 3
import operator
def get_by_path(root, items):
"""Access a nested object in root by item sequence."""
return reduce(opera...
Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]
...nt to make a request to example.com => you can.
Javascript is limited by the "same origin policy" for security reasons so that a malicious script cannot contact a remote server and send sensitive data.
jsonp is a different way to use javascript. You make a request and results are encapsulated ...
JOIN two SELECT statement results
...) AS [# Late]
FROM
(SELECT ks, COUNT(*) AS '# Tasks' FROM Table GROUP BY ks) t1
LEFT JOIN
(SELECT ks, COUNT(*) AS '# Late' FROM Table WHERE Age > Palt GROUP BY ks) t2
ON (t1.ks = t2.ks);
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What is the “realm” in basic authentication
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From RFC 1945 (HTTP/1.0) and RFC 2617 (HTTP Authentication referenced by HTTP/1.1)
The realm attribute (case-insensitive) is required for all
authentication schemes which issue a challenge. The realm value
(case-sensitive), in combination with the canonical root URL of the
server bein...
Difference between the Apache HTTP Server and Apache Tomcat? [closed]
...rated into Java code (HttpServlet), which is then compiled to .class files by the server and executed by the Java virtual machine.
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