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Different floating point result with optimization enabled - compiler bug?
...les.
In x86_64 builds compilers use SSE registers for float and double by default, so that no extended precision is used and this issue doesn't occur.
gcc compiler option -mfpmath controls that.
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What does iota of std::iota stand for?
...(inventor of APL) said this:
For example, the integer function denoted by ι produces a vector of the first n integers when applied to the argument n, …
That ι is the lower-case Greek letter iota.
In the quote above, I typed ι, U+03B9, “GREEK SMALL LETTER IOTA”, but Unicode actually h...
Subtract 7 days from current date
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use dateByAddingTimeInterval method:
NSDate *now = [NSDate date];
NSDate *sevenDaysAgo = [now dateByAddingTimeInterval:-7*24*60*60];
NSLog(@"7 days ago: %@", sevenDaysAgo);
output:
7 days ago: 2012-04-11 11:35:38 +0000
Hope it ...
Sample settings.xml for maven
...icense at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific ...
git --git-dir not working as expected
...s
No need to set --git-dir and --work-tree anymore!
See commit 44e1e4 by Nazri Ramliy:
It takes more keypresses to invoke git command in a different directory without leaving the current directory:
(cd ~/foo && git status)
git --git-dir=~/foo/.git --work-dir=~/foo status
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Entity Framework and SQL Server View
...S. The changes you made in the designer will be preserved and not affected by the refresh.
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No @XmlRootElement generated by JAXB
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To tie together what others have already stated or hinted at, the rules by which JAXB XJC decides whether or not to put the @XmlRootElement annotation on a generated class are non trivial (see this article).
@XmlRootElement exists because the JAXB runtime requires certain information in order to...
Choosing the default value of an Enum type without having to change values
...lt value for an int be 42. Think how daft that sounds... Memory is blanked by the runtime before you get it, enums are structs remember
– ShuggyCoUk
Feb 10 '09 at 10:15
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How to build a query string for a URL in C#?
...s building a query string to including all the necessary parameters. While by all means no rocket science, there are some nifty details you need to take care of like, appending an & if not the first parameter, encoding the parameters etc.
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What is your most productive shortcut with Vim?
...s set to any cursor location using the m command. Each mark is designated by a single lower case letter. Thus ma sets the 'a' mark to the current location, and mz sets the 'z' mark. You can move to the line containing a mark using the ' (single quote) command. Thus 'a moves to the beginning of t...