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What is a C++ delegate?
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You have an incredible number of choices to achieve delegates in C++. Here are the ones that came to my mind.
Option 1 : functors:
A function object may be created by implementing operator()
struct Functor
{
// Normal class/struct members
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Is it possible to read the value of a annotation in java?
this is my code:
9 Answers
9
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Regem>x m> to match string containing two names in any order
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You can do checks using lookarounds:
^(?=.*\bjack\b)(?=.*\bjames\b).*$
Test it.
This approach has the advantage that you can easily specify multiple conditions.
^(?=.*\bjack\b)(?=.*\bjames\b)(?=.*\bjason\b)(?=.*\bjules\b).*$
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Get query from java.sql.PreparedStatement [duplicate]
...tatement#toString(). I.e.
System.out.println(preparedStatement);
To my em>x m>perience, the ones which do so are at least the PostgreSQL 8.m>x m> and MySQL 5.m>x m> JDBC drivers. For the case your JDBC driver doesn't support it, your best bet is using a statement wrapper which logs all setm>X m>m>x m>m>x m>() methods and fina...
Splitting String with delimiter
I am currently trying to split a string 1128-2 so that I can have two separate values. For em>x m>ample, value1: 1128 and value2: 2, so that I can then use each value separately. I have tried split() but with no success. Is there a specific way Grails handles this, or a better way of doing it?
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postgresql return 0 if returned value is null
...LESCE(value [, ...])
The COALESCE function returns the first of its arguments that is not null.
Null is returned only if all arguments are null. It is often
used to substitute a default value for null values when data is
retrieved for display.
Edit
Here's an em>x m>ample of COALESCE with your qu...
How to get the nth occurrence in a string?
... like to get the starting position of the 2nd occurrence of ABC with something like this:
11 Answers
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@import vs #import - iOS 7
...ucing a blur effect within the source code for the session, UIImage was em>x m>tended via a category which imports UIKit like so:
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How to convert wstring into string?
...r_type>(locale);
std::vector<char> to(ws.length() * converter.mam>x m>_length());
std::mbstate_t state;
const wchar_t* from_nem>x m>t;
char* to_nem>x m>t;
const converter_type::result result = converter.out(state, ws.data(), ws.data() + ws.length(), from_nem>x m>t, &to[0], &to[0] + to.size(),...
Specify format for input arguments argparse python
I have a python script that requires some command line inputs and I am using argparse for parsing them. I found the documentation a bit confusing and couldn't find a way to check for a format in the input parameters. What I mean by checking format is em>x m>plained with this em>x m>ample script:
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