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What is The Rule of Three?
... actually means.
Let us consider a simple example:
class person
{
std::string name;
int age;
public:
person(const std::string& name, int age) : name(name), age(age)
{
}
};
int main()
{
person a("Bjarne Stroustrup", 60);
person b(a); // What happens here?
b = ...
Why does comparing strings using either '==' or 'is' sometimes produce a different result?
...
@AlexanderSupertramp, because of string interning.
– Chris Rico
Feb 1 '15 at 9:34
...
How to automate createsuperuser on django?
...peruser('admin', 'admin@example.com', 'adminpass')"
This doesn't uses an extra echo, this has the benefit that you can pass it to a docker container for execution. Without the need to use sh -c "..." which gets you into quote escaping hell.
And remember that first comes username, than the email.
...
How to convert TimeStamp to Date in Java?
...s").parse("01/01/1970 01:00:00").getTime() / 1000;
Or the opposite:
String date = new java.text.SimpleDateFormat("MM/dd/yyyy HH:mm:ss").format(new java.util.Date (epoch*1000));
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impro...
Clicking the back button twice to exit an activity
... }
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this, R.string.exit_press_back_twice_message, Toast.LENGTH_SHORT).show();
}
And it just works exactly as I want. Including the reset of the state whenever the activity is resumed.
...
How can I convert tabs to spaces in every file of a directory?
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DO NOT USE SED! If there's an embedded tab in a string, you may end up mangling your code. This is what expand command was meant to handle. Use expand.
– David W.
Nov 12 '13 at 17:11
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How do I get the directory that a program is running from?
...
This is from the cplusplus forum
On windows:
#include <string>
#include <windows.h>
std::string getexepath()
{
char result[ MAX_PATH ];
return std::string( result, GetModuleFileName( NULL, result, MAX_PATH ) );
}
On Linux:
#include <string>
#include <lim...
What are the most-used vim commands/keypresses?
...en posted to death already btw) draw's this much attention while going the extra mile other posters put in do not...
– Lieven Keersmaekers
Mar 23 '11 at 7:28
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How does one create an InputStream from a String? [duplicate]
...to working with streams in Java - how do I create an InputStream from a String ?
6 Answers
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How do I create a copy of an object in PHP?
... you said that only primitive member variables gets copied: are PHP arrays/strings considered primitive member variables, so they get copied, am I right?
– Marco Demaio
Jul 11 '10 at 10:48
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