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insert vs emplace vs operator[] in c++ map
....insert( std::make_pair<const K,V>(t,u) ); // 4
But that is still error prone in the same way that explicitly typing the type in case [1].
Up to this point, we have different ways of calling insert that require the creation of the value_type externally and the copy of that object into the ...
Check if object value exists within a Javascript array of objects and if not add a new object to arr
...some(user => user.name = newUser.name);
if(userExists) {
return new Error({error:'User exists'})
}
users.push(newUser)
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C# static class constructor
...taticParent
{
static int i =5;
static StaticParent(int i) //Gives error
{
//write your initialization code here
}
}
and it doesn't have the access modifier
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Visual Studio build fails: unable to copy exe-file from obj\debug to bin\debug
... can confirm that when using an assembly version such as "2.0.*" I get the error, but when I instead use "2.0.0" it works as a charm! I urge more people to test this, and if you find it working please vote up this answer, because this is something that needs to be known! Hope Microsoft picks up on t...
Why do we need extern “C”{ #include } in C++?
...y than a C compiler would, so when you try to link, you would get a linker error saying there were missing symbols.
To resolve this, we tell the C++ compiler to run in "C" mode, so it performs name mangling in the same way the C compiler would. Having done so, the linker errors are fixed.
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How do I get a PHP class constructor to call its parent's parent's constructor?
...t understand how. Declaring __construct as static results in the following error for me "Fatal error: Constructor Grandpa::__construct() cannot be static" under PHP5.3
– Mark
Oct 13 '09 at 4:08
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Is there a way to instantiate objects from a string holding their class name?
...ave in another question, this code fails on VS2010 with ambiguous template errors because of make_pair. To fix, change make_pair to std::pair<std::string,Base*()()> and it should fix those errors. I also got some linking errors which were fixed by adding BaseFactory::map_type BaseFactory::map ...
The character encoding of the HTML document was not declared
When I click on my form's submit button the following error message appears:
6 Answers
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Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)
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I got the following error
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)
Tried several ways and finally solved it through the following way
sudo gksu gedit /etc/mysql/my.cnf
modi...
jquery .html() vs .append()
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You see? The string concatenation already let to an error here (unescaped quote). see my post :P
– kizzx2
Jun 10 '10 at 14:47
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