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Optional Parameters in Go?
...uctor:
func NewFoobar(options ...func(*Foobar) error) (*Foobar, error){
fb := &Foobar{}
// ... (write initializations with default values)...
for _, op := range options{
err := op(fb)
if err != nil {
return nil, err
}
}
return fb, nil
}
where each option is a funct...
Why does volatile exist?
...ou can use gcc -ffloat-store to force rounding everywhere even when using x87, or you can set the x87 precision to 53-bit mantissa: randomascii.wordpress.com/2012/03/21/….
– Peter Cordes
Jul 15 '18 at 13:13
...
What integer hash function are good that accepts an integer hash key?
... 16) ^ x) * 0x119de1f3;
x = (x >> 16) ^ x;
return x;
}
For 64-bit numbers, I suggest to use the following, even thought it might not be the fastest. This one is based on splitmix64, which seems to be based on the blog article Better Bit Mixing (mix 13).
uint64_t hash(uint64_t x) {
...
Decoding and verifying JWT token using System.IdentityModel.Tokens.Jwt
...m\",\"given_name\":\"John\",\"family_name\":\"Doe\",\"primarysid\":\"b521a2af99bfdc65e04010ac1d046ff5\",\"iss\":\"http://example.com\",\"aud\":\"myapp\",\"exp\":1460555281,\"nbf\":1457963281}";
var b64header = Convert.ToBase64String(Encoding.UTF8.GetBytes(header))
.Replace('+', ...
How to create a video from images with FFmpeg?
...NG 207x238 207x238+0+0 8-bit sRGB 76.8KB 0.000u 0:00.000
png/5.png PNG 450x600 450x600+0+0 8-bit sRGB 627KB 0.000u 0:00.000
so the classic 480p (640x480 == 4/3) aspect ratio seems appropriate.
Do one conversion with minimal resizing to make widths even (TODO
automate for any width, here I just m...
“Unsafe JavaScript attempt to access frame with URL…” error being continuously generated in Chrome w
... command line option. This should probably get rid of the error (and allow FB to spy on your testing ;)
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Android: alternate layout xml for landscape mode
...-land/main_activity.xml # For handsets in landscape
res/layout-sw600dp/main_activity.xml # For 7” tablets
res/layout-sw600dp-land/main_activity.xml # For 7” tablets in landscape
You can also use qualifier with res ressources files using dimens.xml.
res/values/dimens.xml ...
Is gcc std::unordered_map implementation slow? If so - why?
...
87
I found the reason: it is a Problem of gcc-4.7!!
With gcc-4.7
inserts: 37728
get : 2985
...
Effects of changing Django's SECRET_KEY
...ash functions. SHA-512 would be covered by a 100 long SECRET_KEY (50 x 6 = 600 bits > 512 bits).
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Best way to compare 2 XML documents in Java
...
64
For beginners to XMLUnit, note that, by default, myDiff.similar() will return false if the control and test documents differ in indentation...