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C++ preprocessor __VA_ARGS__ number of arguments
...GS__})/sizeof(int))
Full example:
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
#define SUM(...) (sum(NUMARGS(__VA_ARGS__), __VA_ARGS__))
void sum(int numargs, ...);
int main(int argc, char *argv[]...
Spring Data: “delete by” is supported?
...elete from User u where u.firstName = ?1")
void deleteUsersByFirstName(String firstName);
}
Update:
In modern versions of Spring Data JPA (>=1.7.x) query derivation for delete, remove and count operations is accessible.
public interface UserRepository extends CrudRepository<User, Long&...
Add Variables to Tuple
...
To add a string to the tuple without breaking the string itself check stackoverflow.com/a/16449189
– Enzo Ferey
Dec 24 '17 at 19:24
...
Too many 'if' statements?
... the coding style to their own langauge. The question was how to avoid a string of ifs. This shows how.
– GreenAsJade
Mar 20 '14 at 12:33
6
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How do I read from parameters.yml in a controller in symfony2?
...
final class ApiController extends SymfonyController
{
/**
* @var string
*/
private $apiPass;
/**
* @var string
*/
private $apiUser;
public function __construct(string $apiPass, string $apiUser)
{
$this->apiPass = $apiPass;
$this->...
Reading 64bit Registry from a 32bit application
...ccess the 64 bit registry, you can use RegistryView.Registry64 as follows:
string value64 = string.Empty;
RegistryKey localKey =
RegistryKey.OpenBaseKey(Microsoft.Win32.RegistryHive.LocalMachine,
RegistryView.Registry64);
localKey = localKey.OpenSubKey(@"SOFTWARE\Microsoft\Windows NT...
Creating Unicode character from its number
...
Just cast your int to a char. You can convert that to a String using Character.toString():
String s = Character.toString((char)c);
EDIT:
Just remember that the escape sequences in Java source code (the \u bits) are in HEX, so if you're trying to reproduce an escape sequence, y...
Regex not operator
Is there an NOT operator in Regexes?
Like in that string : "(2001) (asdf) (dasd1123_asd 21.01.2011 zqge)(dzqge) name (20019)"
...
Sublime Text 2: How to delete blank/empty lines
...n't need the ?, as a * also matches zero occurences and \s* will match the extra '\r' when for example editing windows text in a linux environment, so ^\s*$ does the trick.
– drevicko
Nov 1 '14 at 9:41
...
What are POD types in C++?
...
With the exception of a string because you can't copy it with memcpy without first determining the string length.
– user2356685
May 25 '18 at 3:51
...