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Difference between std::result_of and decltype
I have some trouble understanding the need for std::result_of in C++0x. If I understood correctly, result_of is used to obtain the resulting type of invoking a function object with certain types of parameters. For example:
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Java 8 Stream and operation on arrays
...il.Arrays to convert an array into a Java 8 stream which can then be used for summing etc.
int sum = Arrays.stream(myIntArray)
.sum();
Multiplying two arrays is a little more difficult because I can't think of a way to get the value AND the index at the same time as a Stream ope...
How to check programmatically if an application is installed or not in Android?
...e name which we want to check
boolean isAppInstalled = appInstalledOrNot("com.check.application");
if(isAppInstalled) {
//This intent will help you to launch if the package is already installed
Intent LaunchIntent = getPackageManager()
.getL...
How can I use a file in a command and redirect output to the same file without truncating it?
...y the time grep looks at file_name, it is already empty. You can use a temporary file though.
#!/bin/sh
tmpfile=$(mktemp)
grep -v 'seg[0-9]\{1,\}\.[0-9]\{1\}' file_name > ${tmpfile}
cat ${tmpfile} > file_name
rm -f ${tmpfile}
like that, consider using mktemp to create the tmpfile but note t...
Do you continue development in a branch or in the trunk? [closed]
...ranching and merging? Slicing off periodic release branches to the public (or whomever your customer is) and then continuing development on the trunk, or considering the trunk the stable version, tagging it as a release periodically, and doing your experimental work in branches. What do folks think ...
Why is DarkGray lighter than Gray?
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Wikipedia has some information on the subject. It sounds like a lot of the named color definitions come from X Windows System. On X, "Gray" is actually closer to "Silver". However, the W3C defined Gray (more appropriately?) as RGB 50%.
Here's som...
PostgreSQL delete all content
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Thanks! Thats it! With this information i found this: stackoverflow.com/questions/2829158/…
– vo1d
Nov 4 '12 at 22:59
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ASP.NET MVC Performance
I found some wild remarks that ASP.NET MVC is 30x faster than ASP.NET WebForms. What real performance difference is there, has this been measured and what are the performance benefits.
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Vim delete blank lines
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Thanks soulmerge. This is my favorite answer, since it actually explains what the :g command does.
– Tim Swast
Aug 15 '11 at 19:03
4
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How do I declare a namespace in JavaScript?
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The important point is to be religious about expanding no further than the one root variable. Everything must flow from this.
– annakata
May 19 '09 at 8:54
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