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Can a C++ enum class have methods?
...s inspired by the pattern we used before C++11 to get scoped enums:
class Foo {
public:
enum {BAR, BAZ};
};
However, that's just syntax. Again, enum class is not a class.
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How do I use Django templates without the rest of Django?
...something like this:
from django.conf import settings
settings.configure (FOO='bar') # Your settings go here
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C++ Dynamic Shared Library on Linux
...terface.hpp:
class Base {
public:
virtual ~Base() {}
virtual void foo() const = 0;
};
using Base_creator_t = Base *(*)();
Shared library content:
#include "Interface.hpp"
class Derived: public Base {
public:
void foo() const override {}
};
extern "C" {
Base * create() {
return...
Rails Root directory path?
...
For super correctness, you should use:
Rails.root.join('foo','bar')
which will allow your app to work on platforms where / is not the directory separator, should anyone try and run it on one.
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Python String and Integer concatenation [duplicate]
...
(Correction: If you do range={(1,10): "foo"}, then range[1,10] is in fact a syntactically valid expression.)
– Tim Pietzcker
Nov 17 '12 at 11:10
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How to parse a string to an int in C++?
...oblem: what if the caller needs to distinguish between bad input (e.g. "123foo") and a number that is out of the range of int (e.g. "4000000000" for 32-bit int)? With stringstream, there is no way to make this distinction. We only know whether the conversion succeeded or failed. If it fails, we have...
Inputting a default image in case the src attribute of an html is not valid?
... well for me. Maybe you wanna use JQuery to hook the event.
<img src="foo.jpg" onerror="if (this.src != 'error.jpg') this.src = 'error.jpg';">
Updated with jacquargs error guard
Updated: CSS only solution
I recently saw Vitaly Friedman demo a great CSS solution I wasn't aware of. The idea...
What are rvalues, lvalues, xvalues, glvalues, and prvalues?
...);
But also don't forget that named rvalue references are lvalues:
void foo(int&& t) {
// t is initialized with an rvalue expression
// but is actually an lvalue expression itself
}
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Cast Double to Integer in Java
...
Like this:
Double foo = 123.456;
Integer bar = foo.intValue();
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Does Javascript pass by reference? [duplicate]
...-by-Value
Primitive types are passed by-value:
var num = 123, str = "foo";
function f(num, str) {
num += 1;
str += "bar";
console.log("inside of f:", num, str);
}
f(num, str);
console.log("outside of f:", num, str);
Reassignments inside a function scope are not visible ...