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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...了！
加上__attribute__((noreturn))则可以很好的处理类似这种问题。把
extern void myexit();修改为：
extern void myexit() __attribute__((noreturn));之后，编译不会再出现警告信息。
__attribute__ const
该属性只能用于带有数值类型参数的函数上...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
... relevant, hardly anyone would run raytracing in a scripting language on a CPU these days. I did find pybenchmarks.org
– smci
Apr 23 '17 at 1:15
...
Can I use view pager with views (not with fragments)
....getView(context, collection);
break;
case 2:
view = CpuView.getView(context, collection);
break;
}
collection.addView(view);
return view;
}
@Override
public int getCount() {
return 3;
}
@Override
public boolean isViewFromObject(View view,...
Is it better to call ToList() or ToArray() in LINQ queries?
... 10.0.14393.3443 (1607/AnniversaryUpdate/Redstone1)
Intel Core i5-4460 CPU 3.20GHz (Haswell), 1 CPU, 4 logical and 4 physical cores
Frequency=3124994 Hz, Resolution=320.0006 ns, Timer=TSC
.NET Core SDK=3.1.100
[Host] : .NET Core 3.1.0 (CoreCLR 4.700.19.56402, CoreFX 4.700.19.56...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...ttention since it deals with a simple problem that requires a lot of work (CPU cycles) even for a modern CPU. And one day I also stood there with the same ¤#%"#" problem. I had to flip millions of bytes. However I know all my target systems are modern Intel-based so let's start optimizing to the ex...
What is data oriented design?
...rformance. This will only increase in importance as the difference between CPU and RAM speed widens.
How to layout the memory
In my ball example I simplified the issue a lot, because usually for any normal app you will likely access multiple variables together. E.g. position and radius will probab...
What is the Haskell response to Node.js?
...sometimes, though). This makes it easier to avoid locks. However, too much CPU processing in a callback will impact other connections (in this case, the task should split into smaller sub-tasks and re-scheduled).
You have no such problems, ghc will distribute your work amongst real OS threads.
...
Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
...e. It is present in C89 and later. At one time this was supposed to be the CPU time in cycles, but modern standards like POSIX require CLOCKS_PER_SEC to be 1000000, giving a maximum possible precision of 1 µs. The precision on my system is indeed 1 µs. This clock wraps around once it tops out (th...
Fastest sort of fixed length 6 int array
... are single cycle instructions like add/subtract), but for a normal scalar CPU your method looks better.
– Paul R
May 8 '10 at 16:13
2
...
When would anyone use a union? Is it a remnant from the C-only days?
...neral endianness interface to an unknown external host.
Manipulate foreign CPU architecture floating point data, such as accepting VAX G_FLOATS from a network link and converting them to IEEE 754 long reals for processing.
Provide straightforward bit twiddling access to a higher-level type.
union...