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rgdal package installation
...ibgdal1-dev libproj-dev
One tip that can be useful, still under a Debian based system, is to install the apt-file package and run :
$ sudo apt-file update
Then, when you get an error such as :
configure: error: proj_api.h not found in standard or given locations.
You can use the following co...
How to open, read, and write from serial port in C?
...
For demo code that conforms to POSIX standard as described in Setting Terminal Modes Properly
and Serial Programming Guide for POSIX Operating Systems, the following is offered.
This code should execute correctly using Linux on x...
boost::flat_map and its performance compared to map and unordered_map
...cache hits. I recently found out about boost::flat_map which is a vector based implementation of a map. It doesn't seem to be nearly as popular as your typical map / unordered_map so I haven't been able to find any performance comparisons. How does it compare and what are the best use cases for ...
Appending HTML string to the DOM
... all current browsers.
div.insertAdjacentHTML( 'beforeend', str );
Live demo: http://jsfiddle.net/euQ5n/
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How to check for a valid Base64 encoded string
Is there a way in C# to see if a string is Base 64 encoded other than just trying to convert it and see if there is an error? I have code code like this:
...
How to print the ld(linker) search path
...ber of different built-in default linker scripts, and chooses between them based on various other linker options.)
If you're linking via gcc:
You can pass the -v option to gcc so that it shows you how it invokes the linker. In fact, it normally does not invoke ld directly, but indirectly via a ...
Replace input type=file by an image
...ut do everything you want without troubles.
Any <input type="file"> based workaround that tries to trigger the "open file" dialog by means other than clicking on the actual control could be removed from browsers for security reasons at any time. (I think in the current versions of FF and IE, ...
How do I install cygwin components from the command line?
... upgrade all installed packages at once (as apt-get upgrade does on Debian based Linux).
Example use:
setup-x86_64.exe -q --packages=bash,vim
You can create an alias for easier use, for example:
alias cyg-get="/cygdrive/d/path/to/cygwin/setup-x86_64.exe -q -P"
Then you can, for example, instal...
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...);
Buffer.BlockCopy(buffer2, 0, dst, 0x11, 0x20);
return Convert.ToBase64String(dst);
}
Verifying:
public static bool VerifyHashedPassword(string hashedPassword, string password)
{
byte[] buffer4;
if (hashedPassword == null)
{
return false;
}
if (password == nu...
Find out whether Chrome console is open
...
Based on this discovery I was able to find less-intrusive method. DevTools calls toString() on functions when printing them to console. So one can print a custom function object with toString() method override returning empty...