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What are inline namespaces for?
...le, consider the STL implementation of vector. If we had inline namespaces from the beginning of C++, then in C++98 the header <vector> might have looked like this:
namespace std {
#if __cplusplus < 1997L // pre-standard C++
inline
#endif
namespace pre_cxx_1997 {
template...
How to list all installed packages and their versions in Python?
...uce the same output as pip freeze by calling:
pip list
Note
The output from pip list is formatted differently, so if you have some shell script that parses the output (maybe to grab the version number) of freeze and want to change your script to call list, you'll need to change your parsing code...
What's the fastest way to delete a large folder in Windows?
... suggestion is the fastest. Install cygwin.com then use rm -rfv folderName from the cygwin command prompt.
– Lonnie Best
Jan 8 '13 at 20:34
1
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What linux shell command returns a part of a string? [duplicate]
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what do we need to do if we want to start from 3rd char till end of the string ie: "abcdef" we need cdef then echo "abcdef" | cut -c3?"
– user1731553
Apr 5 '16 at 5:46
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Why must we define both == and != in C#?
...
I can't speak for the language designers, but from what I can reason on, it seems like it was intentional, proper design decision.
Looking at this basic F# code, you can compile this into a working library. This is legal code for F#, and only overloads the equality ope...
Suppress command line output
...0 is stdin, incidentally.) The 2>&1 copies output file descriptor 2 from the new value of 1, which was just redirected to the null device.
This syntax is (loosely) borrowed from many Unix shells, but you do have to be careful because there are subtle differences between the shell syntax and ...
How to get Maven project version to the bash command line
Previous I issued a question on how to change Maven project vesion from command line which lead me to a new issue.
28 Ans...
Why does calling a method in my derived class call the base class method?
...tion. You cannot create instances of abstract classes, but you can inherit from them and create instances of your inherited classes and access them using the base class definition. In your example this would look like:
public abstract class Person
{
public abstract void ShowInfo();
}
public cl...
Python Regex - How to Get Positions and Values of Matches
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@hi-angel yep, see my answer below from last year that does just that
– StevenWernerCS
Jul 16 at 1:03
add a comment
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How to set timer in android?
...t3;
long starttime = 0;
//this posts a message to the main thread from our timertask
//and updates the textfield
final Handler h = new Handler(new Callback() {
@Override
public boolean handleMessage(Message msg) {
long millis = System.currentTimeMillis() -...