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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...f the work can
be avoided. With a slightly smarter
linker than is typically used, it is
possible to remove some of these
inefficiencies. This is discussed in
§6.2.3 and §6.2.5.
Since the report was written in 2006 one would hope that many of the recommendations would have been incorpor...
How to sync with a remote Git repository?
... git pull is not going to work unless you've configured the remote to fetch from and the branch to merge to.
– Abizern
Nov 30 '10 at 11:53
...
What is the exact meaning of IFS=$'\n'?
...
Normally bash doesn't interpret escape sequences in string literals. So if you write \n or "\n" or '\n', that's not a linebreak - it's the letter n (in the first case) or a backslash followed by the letter n (in the other two cas...
Do Java arrays have a maximum size?
...ry easy to test.
In a recent HotSpot VM, the correct answer is Integer.MAX_VALUE - 5. Once you go beyond that:
public class Foo {
public static void main(String[] args) {
Object[] array = new Object[Integer.MAX_VALUE - 4];
}
}
You get:
Exception in thread "main" java.lang.OutOfMemoryEr...
Undefined reference to `sin` [duplicate]
...e floating-point built-in; there were floating-point co-processors (80387, etc) and so on, so there were lots of ways to provide the functionality (using software floating point libraries, or using hardware, with different amounts of support).
– Jonathan Leffler
...
Why does Google +1 record my mouse movements? [closed]
... how quickly users move from one UI item to another, how often clicks miss etc.
I normally have a deeply cynical view of invasive features but I don't think this is a privacy risk. It's shocking because it's so unusually fine-grained, but it's not very revealing. Does your mouse movement encode ban...
SQLite DateTime comparison
...e a few datetime functions. Follow the string representation formats (actually only formats 1-10) understood by those functions (storing the value as a string) and then you can use them, plus lexicographical comparison on the strings will match datetime comparison (as long as you don't try to compa...
PostgreSQL Autoincrement
...other integer data type, such as smallint.
Example :
CREATE SEQUENCE user_id_seq;
CREATE TABLE user (
user_id smallint NOT NULL DEFAULT nextval('user_id_seq')
);
ALTER SEQUENCE user_id_seq OWNED BY user.user_id;
Better to use your own data type, rather than user serial data type.
...
try/catch versus throws Exception
...) Thrown exceptions
3) Side effects (i.e changes in the heap, file system etc)
In this case, the first method propagates any exception, while the second throws no checked exception, and swallows most of the unchecked exceptions as well, so the behavior IS different.
However, if you guarantee that...
Where is the syntax for TypeScript comments documented?
...JSDoc.
You can (and should) still use other jsdoc block tags like @returns etc.
Example
Just an example. Focus on the types (not the content).
JSDoc version (notice types in docs):
/**
* Returns the sum of a and b
* @param {number} a
* @param {number} b
* @returns {number}
*/
function sum(a, b)...