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Is there an easy way to check the .NET Framework version?
...ry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP");
string[] version_names = installed_versions.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5' which needs to be trimmed off before conversion
double Framework = Convert.ToDouble(version_names[version_names.Length -...
Using C++ library in C code
... 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++ class with data members and methods, then yo...
UILabel sizeToFit doesn't work with autolayout ios6
... iOS Auto Layout Demystified, this is:
the way a view prefers to avoid extra padding around it's core content
For us, with the UILabel, the core content is the text.
Here we come to the heart of this basic scenario. We have given our text label two constraints. They conflict. One says "the he...
How to round a number to significant figures in Python
...
%g in string formatting will format a float rounded to some number of significant figures. It will sometimes use 'e' scientific notation, so convert the rounded string back to a float then through %s string formatting.
>>&g...
Why is using 'eval' a bad practice?
...a security vulnerability, and it has to do with the trustworthiness of the string it's given as input. If that string comes, in whole or in part, from the outside world, there's a possibility of a scripting attack on your program if you're not careful. But that's thge derangement of an outside attac...
Are there benefits of passing by pointer over passing by reference in C++?
...inter types is not possible (pointers are builtin types). So you can't do string s = &str1 + &str2; using pointers.
No 0 values possible -> Called function doesn't have to check for them
Reference to const also accepts temporaries: void f(const T& t); ... f(T(a, b, c));, pointers ca...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
...zip is one of the functions provided by the protonpack library.
Stream<String> streamA = Stream.of("A", "B", "C");
Stream<String> streamB = Stream.of("Apple", "Banana", "Carrot", "Doughnut");
List<String> zipped = StreamUtils.zip(streamA,
st...
The Ruby %r{ } expression
...
this regexp matches all strings that ends with .gif, .jpg...
you could replace it with
/\.(gif|jpg|jpeg|png)$/i
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Is there a difference between using a dict literal and a dict constructor?
...o be extra nice. Just as it always seems to offer to convert single-quoted strings into double-quoted -- for no apparent reason.
– maligree
Jul 7 '11 at 12:53
1
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SELECT * FROM X WHERE id IN (…) with Dapper ORM
...
Dapper supports this directly. For example...
string sql = "SELECT * FROM SomeTable WHERE id IN @ids"
var results = conn.Query(sql, new { ids = new[] { 1, 2, 3, 4, 5 }});
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