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What is the difference between float and double?

...ision(6) << t << std::endl; } } The output is 0.000000 0.010000 0.020000 0.030000 0.040000 0.050000 0.060000 0.070000 0.080000 0.090000 0.100000 0.110000 0.120000 0.130000 0.140000 0.150000 0.160000 0.170000 0.180000 0.190000 0.200000 0.210000 0.220000 0.230000 0.240000 0.250000 0.2...
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Are loops really faster in reverse?

...a bit more scrutiny and it turns out that in C/C++, even for 5e9 = (50,000x100,000) operations, there is no difference between going up and down if the testing is done against a constant like @alestanis says. (JsPerf results are sometimes inconsistent but by and large say the same: you can't make a ...
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How to pass macro definition from “make” command line arguments (-D) to C source code?

... 100 Call make command this way: make CFLAGS=-Dvar=42 And be sure to use $(CFLAGS) in your compi...
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What's the difference between JPA and Hibernate? [closed]

... 100 votes JPA is the interface while Hibernate is the implementation. Traditionally ...
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.NET HttpClient. How to POST string value?

... format: // HTTP POST var gizmo = new Product() { Name = "Gizmo", Price = 100, Category = "Widget" }; response = await client.PostAsJsonAsync("api/products", gizmo); if (response.IsSuccessStatusCode) { // Get the URI of the created resource. Uri gizmoUrl = response.Headers.Location; } ...
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EC2 instance types's exact network performance?

...Bit/s) t2.micro = ~70 MBit/s (qiita says 63 MBit/s) - t1.micro gets about ~100 Mbit/s t2.small = ~125 MBit/s (t2, qiita says 127 MBit/s, cloudharmony says 125 Mbit/s with spikes to 200+ Mbit/s) *.medium = t2.medium gets 250-300 MBit/s, m3.medium ~400 MBit/s *.large = ~450-600 MBit/s (the most variat...
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How to Customize the time format for Python logging?

...o-padded formatting for the msecs field. Otherwise, msecs values less than 100 appear incorrectly. – Oddthinking Nov 1 '16 at 11:21 2 ...
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Should I use multiplication or division?

...ted constant to perfect precision, the answer can still be different. x = 100.0; x / 3.0 == x * (1.0/3.0) // is false in the test I just performed The speed issue is only likely to matter in C/C++ or JIT languages, and even then only if the operation is in a loop at a bottleneck. ...
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Merge two Git repositories without breaking file history

...2:55 Dai 100k2121 gold badges164164 silver badges259259 bronze badges answered Jan 22 '13 at 23:57 Eric LeeEri...
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'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of

...ike i.e. myIcon-58.png myIcon-57.png myIcon-72.png myIcon-80.png myIcon-100.png .... And drag and drop them on to the correct boxes under AppIcon. See screenshots. You don't have to manually edit plist file. share ...