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Most used parts of Boost [closed]
When I discovered boost::lexical_cast I thought to myself "why didn't I know about this sooner!" - I hated having to write code like
...
What is the difference between NULL, '\0' and 0?
...then referred to as a null pointer constant. The C standard defines that 0 cast to the type void * is both a null pointer and a null pointer constant.
Additionally, to help readability, the macro NULL is provided in the header file stddef.h. Depending upon your compiler it might be possible to #und...
std::wstring VS std::string
...text); i < iMax; ++i)
{
std::cout << " " << static_cast<unsigned int>(
static_cast<unsigned char>(text[i])
);
}
std::cout << std::endl << std::endl ;
// - - -
const wchar_t wtext[]...
Checking that a List is not empty in Hamcrest
...(empty())));
empty() is a static in the Matchers class. Note the need to cast the list to Collection, thanks to Hamcrest 1.2's wonky generics.
The following imports can be used with hamcrest 1.3
import static org.hamcrest.Matchers.empty;
import static org.hamcrest.core.Is.is;
import static org.h...
Enums and Constants. Which to use when?
...pe except char like:
enum LongEnum : long {
foo,
bar,
}
You can cast explicitly from and implicitly to the the base type, which is useful in switch-statements. Beware that one can cast any value of the base type to an enum, even if the enum has no member with the appropriate value. So usi...
How to use a servlet filter in Java to change an incoming servlet request url?
...
Implement javax.servlet.Filter.
In doFilter() method, cast the incoming ServletRequest to HttpServletRequest.
Use HttpServletRequest#getRequestURI() to grab the path.
Use straightforward java.lang.String methods like substring(), split(), concat() and so on to extract the part o...
How to pass parameters to ThreadStart method in Thread?
... multiple parameters, and you get compile-time checking without needing to cast from object all the time.
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Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]
... not equal to true, though it is not false.
In the first case, when '0' is casted to bool, casting operator returns true for everything that is not 0.
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Convert Month Number to Month Name Function in SQL
...e hacky but should work:
SELECT DATENAME(month, DATEADD(month, @mydate-1, CAST('2008-01-01' AS datetime)))
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How to find controls in a repeater header or footer
...ntrol)(obj As Repeater, ControlName As String) As T
Dim ctrl As T = TryCast((From item As RepeaterItem In obj.Controls
Where item.ItemType = ListItemType.Header).SingleOrDefault.FindControl(ControlName),T)
Return ctrl
End Function
And use it easy:
Dim txt as string = rp...