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What is __declspec and when do I need to use it?
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This is a Microsoft specific extension to the C++ language which allows you to attribute a type or function with storage class information.
Documentation
__declspec (C++)
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Why do we need virtual functions in C++?
I'm learning C++ and I'm just getting into virtual functions.
26 Answers
26
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How do you copy the contents of an array to a std::vector in C++ without looping?
...st an iterator, and the vector assignment would be failry general (and the C++/STL way).
– MP24
Nov 6 '08 at 21:18
6
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jQuery $.ajax(), $.post sending “OPTIONS” as REQUEST_METHOD in Firefox
...ccess-Control-Allow-Methods "POST, GET, OPTIONS"
# force apache to return 200 without executing my scripts
RewriteEngine On
RewriteCond %{REQUEST_METHOD} OPTIONS
RewriteRule .* / [R=200,L]
You may not need the latter part, depending on what happens when Apache executes your target script. Credit...
C++ SFINAE examples?
... @akim: yeah its what I thought -> C99. This is not allowed in C++, here is what you get with a modern compiler : error C2466: cannot allocate an array of constant size 0
– v.oddou
Jun 16 '14 at 1:31
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How to get JSON from URL in JavaScript?
....onload = function() {
var status = xhr.status;
if (status === 200) {
callback(null, xhr.response);
} else {
callback(status, xhr.response);
}
};
xhr.send();
};
And use it like this:
getJSON('http://query.yahooapis.com/v1/public/yql?q=select%20%2a%2...
Read a file in Node.js
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console.log('received data: ' + data);
response.writeHead(200, {'Content-Type': 'text/html'});
response.write(data);
response.end();
} else {
console.log(err);
}
});
Thanks to dc5.
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How can I get a file's size in C++? [duplicate]
...uestion to this one .
What is the most common way to get the file size in C++?
Before answering, make sure it is portable (may be executed on Unix, Mac and Windows),
reliable, easy to understand and without library dependencies (no boost or qt, but for instance glib is ok since it is portable libra...
Difference between pre-increment and post-increment in a loop?
...tResult = i++;
Assert( postIncrementtResult == 3 );
Assert( i == 4 );
In C++, the pre-increment is usually preferred where you can use either.
This is because if you use post-increment, it can require the compiler to have to generate code that creates an extra temporary variable. This is because b...
HTTP GET request in JavaScript?
...tion() {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200)
callback(xmlHttp.responseText);
}
xmlHttp.open("GET", theUrl, true); // true for asynchronous
xmlHttp.send(null);
}
sh...