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Using C++ library in C code
...face layer in C++ that declares functions with extern "C":
extern "C" int foo(char *bar)
{
return realFoo(std::string(bar));
}
Then, you will call foo() from your C module, which will pass the call on to the realFoo() function which is implemented in C++.
If you need to expose a full C++ cla...
Linux error while loading shared libraries: cannot open shared object file: No such file or director
...ind that they are symlinks to each other, so if you have version 1.1 of libfoo.so, you'll have a real file libfoo.so.1.0, and symlinks foo.so and foo.so.1 pointing to the libfoo.so.1.0. And if you install version 1.1 without removing the other one, you'll have a libfoo.so.1.1, and libfoo.so.1 and l...
Optimal way to concatenate/aggregate strings
...rceTable (ID, Name)
VALUES
(1, 'Matt'),
(1, 'Rocks'),
(2, 'Stylus'),
(3, 'Foo'),
(3, 'Bar'),
(3, 'Baz')
The query result:
ID FullName
----------- ------------------------------
2 Stylus
3 Bar, Baz, Foo
1 Matt, Rocks
...
What's the difference between a 302 and a 307 redirect?
... (e.g. Response.RedirectSeeOther), and if the client is not 1.1 (e.g. GET /foo.html, GET /foo.html HTTP/1.0) then issue the legacy 302.
– Ian Boyd
Apr 9 '14 at 14:05
...
What's the fastest way to read a text file line-by-line?
...memory.
Say you wanted to find the first line that contains the word "foo",
and then exit. Using ReadAllLines, you'd have to read the entire file
into memory, even if "foo" occurs on the first line. With ReadLines,
you only read one line. Which one would be faster?
...
Should I use `import os.path` or `import os`?
...hich module to load for path.
reference
With some modules, saying import foo will not expose foo.bar, so I guess it really depends the design of the specific module.
In general, just importing the explicit modules you need should be marginally faster. On my machine:
import os.path: 7.54285810...
Entity Framework - Invalid Column Name '*_ID"
...ing a primary key made up of two foreign keys like this:
HasKey(x => x.FooId);
HasKey(x => x.BarId);
HasRequired(x => x.Foo)
.WithMany(y => y.Foos);
HasRequired(x => x.Bar);
The error I was getting was, "invalid column name Bar_ID".
Specifying the composite primary key correc...
Static Classes In Java
...
a class Foo with only static methods is not the same as static class Foo
– craigb
Feb 5 '14 at 20:49
12
...
NameError: global name 'unicode' is not defined - in Python 3
...ion_info[0] >= 3:
unicode = str
and can then just do for example
foo = unicode.lower(foo)
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What's the correct way to communicate between controllers in AngularJS?
...n('someComponent.someCrazyEvent', function(){
console.log('foo');
});
$scope.$on('$destroy', unbind);
}
]);
I would say, that's not really an angular specific thing as it applies to other EventBus implementations as well, that you have to clean ...