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Is volatile expensive?
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123
On Intel an un-contended volatile read is quite cheap. If we consider the following simple ca...
How to assign string to bytes array
...ray: %v (%T)\n", arr, arr)
...gives the following output:
array: [97 98 99 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] ([20]uint8)
I also made it available at the Go Playground
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Why are C# 3.0 object initializer constructor parentheses optional?
...pose we wanted to add a new prefix operator to C# called "frob":
x = frob 123 + 456;
(UPDATE: frob is of course await; the analysis here is essentially the analysis that the design team went through when adding await.)
"frob" here is like "new" or "++" - it comes before an expression of some sor...
Remove plot axis values
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199
Remove numbering on x-axis or y-axis:
plot(1:10, xaxt='n')
plot(1:10, yaxt='n')
If you want ...
How to get RGB values from UIColor?
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codelogiccodelogic
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Convert objective-c typedef to its string equivalent
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eldarerathis
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answered Jul 7 '09 at 21:41
Barry WarkBarry Wark
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How to work with complex numbers in C?
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@Calmarius complex is a standard c99 type (under the hood on GCC, it is actually an alias to the _Complex type).
– Snaipe
Apr 12 '15 at 8:50
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How to sum up an array of integers in C#
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Tomas VanaTomas Vana
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...ftrace。
9. 分析内核实时函数栈
# bpftrace -e 'profile:hz:99 { @[kstack] = count(); }'
Attaching 1 probe...
^C
[...]
@[
filemap_map_pages+181
__handle_mm_fault+2905
handle_mm_fault+250
__do_page_fault+599
async_page_fault+69
]: 12
[...]
@[
cpuidle_enter_state+164
do_...
在 App Inventor 2 中使用图像 · App Inventor 2 中文网
... 隐私策略和使用条款 技术支持 service@fun123.cn