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Why can templates only be implemented in the header file?
...compiled.
So when foo.cpp is compiled, the compiler can't see bar.cpp to know that MyClass<int> is needed. It can see the template MyClass<T>, but it can't emit code for that (it's a template, not a class). And when bar.cpp is compiled, the compiler can see that it needs to create a MyC...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...r signal 17
Nov 30 18:25:39 share1 heartbeat: [4460]: info: Local status now set to: 'up'
Nov 30 18:25:39 share1 heartbeat: [4460]: info: Link share1:eth1 up.
Nov 30 18:25:40 share1 heartbeat: [4460]: info: Link 172.16.20.254:172.16.20.254 up.
Nov 30 18:25:40 share1 heartbeat: [4460]: info: ...
Algorithm to generate a crossword
...
@Kaffeine, yep I know what you mean - I had to throw out these options because even though they could create really good grids, it's too hard to check (read: I couldn't be bothered), and chances are it's just interference anyway.
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Is it good practice to make the constructor throw an exception? [duplicate]
...or example I have a class Person and I have age as its only attribute. Now
I provide the class as
8 Answers
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O(nlogn) Algorithm - Find three evenly spaced ones within binary string
...e, we have the list L = [1, 2, 4, 5, 8]. This step is O(n). The problem is now to find an arithmetic progression of length 3 in L, i.e. to find distinct a, b, c in L such that b-a = c-b, or equivalently a+c=2b. For the example above, we want to find the progression (2, 5, 8).
Make a polynomial p wit...
Is multiplication and division using shift operators in C actually faster?
...wer: Not likely.
Long answer:
Your compiler has an optimizer in it that knows how to multiply as quickly as your target processor architecture is capable. Your best bet is to tell the compiler your intent clearly (i.e. i*2 rather than i << 1) and let it decide what the fastest assembly/mach...
How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
...by Laravel when accessing timestamps. To fix for PostgreSQL, use: DB::raw('now()::timestamp(0)') (reference: postgresql.org/docs/8.1/static/…)
– andrewhl
Aug 11 '14 at 20:37
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jQuery: Return data after ajax call success [duplicate]
...#test-arrow_functions
UPDATE (2017)
There is an even newer syntax right now called async functions with a new await keyword that instead of this code:
functionReturningPromise()
.then(data => console.log('Data:', data))
.catch(error => console.log('Error:', error));
lets you writ...
How do I give text or an image a transparent background using CSS?
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@outis: Good news, #RRGGBBAA is now in Color level 4.
– BoltClock♦
Feb 26 '15 at 19:01
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Making 'git log' ignore changes for certain paths
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It is implemented now (git 1.9/2.0, Q1 2014) with the introduction pathspec magic :(exclude) and its short form :! in commit ef79b1f and commit 1649612, by
Nguyễn Thái Ngọc Duy (pclouds), documentation can be found here.
You now can log e...