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How to compile for Windows on Linux with gcc/g++?

...torial here at the Code::Blocks forum. Mind that the command changes to x86_64-w64-mingw32-gcc-win32, for example. Ubuntu, for example, has MinGW in its repositories: $ apt-cache search mingw [...] g++-mingw-w64 - GNU C++ compiler for MinGW-w64 gcc-mingw-w64 - GNU C compiler for MinGW-w64 mingw-w6...
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“where 1=1” statement [duplicate]

...No magic, just practical Example Code: commandText = "select * from car_table where 1=1"; if (modelYear <> 0) commandText += " and year="+modelYear if (manufacturer <> "") commandText += " and value="+QuotedStr(manufacturer) if (color <> "") commandText += " and col...
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What is the definition of “interface” in object oriented programming

...dom.randint(0,10) # What you care about class SecretGame(object): def __init__(self, number_generator): number = number_generator.generate() print number Here, none of the classes implement an interface. Python does not care about that, because the SecretGame class will just t...
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What's the difference between the atomic and nonatomic attributes?

... variables; they will be synthesized automatically, too, and will have an _ prepended to their name to prevent accidental direct access). With "atomic", the synthesized setter/getter will ensure that a whole value is always returned from the getter or set by the setter, regardless of setter activi...
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How to get my IP address programmatically on iOS/macOS?

...s well as other solutions on this topic will not properly decode IPv6 (inet_ntoa cannot deal with them). This was pointed out to me by Jens Alfke on an Apple forum - the proper function to use is inet_ntop (look at the man page, and or refer to this inet_ntop article also provided by Jens. The dict...
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How to write a JSON file in C#?

... I would recommend Json.Net, see example below: List<data> _data = new List<data>(); _data.Add(new data() { Id = 1, SSN = 2, Message = "A Message" }); string json = JsonConvert.SerializeObject(_data.ToArray()); //write string to file System.IO.File.WriteAllText(@"...
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Delete all documents from index/type without deleting type

... (using your example): curl -XDELETE 'http://localhost:9200/twitter/tweet/_query' -d '{ "query" : { "match_all" : {} } }' Or you could just delete the type: curl -XDELETE http://localhost:9200/twitter/tweet ...
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Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?

...g a method call may make it slower... function StringBuilder() { this._array = []; this._index = 0; } StringBuilder.prototype.append = function (str) { this._array[this._index] = str; this._index++; } StringBuilder.prototype.toString = function () { return this._array.join('')...
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Objective-C Static Class Level variables

...ing a Class Object in Apple's Objective-C docs. – big_m Oct 3 '11 at 16:02 ...
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Is gcc std::unordered_map implementation slow? If so - why?

...t, how much slower our concurrent hash map is compared with std::unordered_map . 3 Answers ...