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Shorthand way for assigning a single field in a record, while copying the rest of the fields?
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answered Feb 19 '13 at 10:54
Chris TaylorChris Taylor
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What is the difference between save and export in Docker?
...h images.
An image has to be considered as 'dead' or immutable, starting 0 or 1000 containers from it won't alter a single byte. That's why I made a comparison with a system install ISO earlier. It's maybe even closer to a live-CD.
A container "boots" the image and adds an additional layer on top ...
Reset the database (purge all), then seed a database
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280
I use rake db:reset which drops and then recreates the database and includes your seeds.rb file....
What is the difference between Collections.emptyList() and Collections.EMPTY_LIST
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edited Mar 27 '13 at 10:17
answered Feb 14 '13 at 8:44
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Undoing accidental git stash pop
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Try using How to recover a dropped stash in Git? to find the stash you popped. I think there ar...
Can Java 8 code be compiled to run on Java 7 JVM?
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answered Mar 18 '14 at 22:30
JesperEJesperE
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Is gcc's __attribute__((packed)) / #pragma pack unsafe?
... int x;
} __attribute__((packed));
struct foo arr[2] = { { 'a', 10 }, {'b', 20 } };
int *p0 = &arr[0].x;
int *p1 = &arr[1].x;
printf("sizeof(struct foo) = %d\n", (int)sizeof(struct foo));
printf("offsetof(struct foo, c) = %d\n", (int)offsetof(struct foo, c));
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Scala equivalent of Java java.lang.Class Object
... type erasure on the JVM, in the case of getClass.
scala> classOf[C]
res0: java.lang.Class[C] = class C
scala> c.getClass
res1: java.lang.Class[_] = class C
That is why the following will not work:
val xClass: Class[X] = new X().getClass //it returns Class[_], nor Class[X]
val integerClass:...
git add . vs git commit -a
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git commit -a means almost[*] the same thing as git add -u && git commit.
It's not the ...
How to retrieve a user environment variable in CMake (Windows)
...Lowell Palmer
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