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Best practices for circular shift (rotate) operations in C++
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105
See also an earlier version of this answer on another rotate question with some more details a...
micro:bit 实验07 - 手机调色，点亮一颗 RGB LED · App Inventor 2 中文网
...20 毫秒 = 50Hz。低于 50Hz 肉眼能看出闪烁，
调太高（比如 100 微秒）某些 LED 会发暗。50Hz~1kHz 之间都合适。
第 3 步：加几个预设色
global 预设 = list(list(255, 0, 0), list(0, 255, 0), list(0, 0, 255), list(255, 180, 0), list(255,...
How to Store Historical Data
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edited Oct 6 '10 at 16:07
answered Oct 6 '10 at 15:52
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What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...t use is wchar_t today?
Not much, for portable code anyway. If __STDC_ISO_10646__ is defined then values of wchar_t directly represent Unicode codepoints with the same values in all locales. That makes it safe to do the inter-locale conversions mentioned earlier. However you can't rely only on it t...
Is there a way to make GHC provide the type class constraints of typed holes?
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crockeeacrockeea
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add a co...
How do I include a file over 2 directories back?
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answered Oct 2 '08 at 15:10
Konrad RudolphKonrad Rudolph
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Determine function name from within that function (without using traceback)
...one such way.
– Yuval
Sep 20 '14 at 10:47
44
Combining @CamHart's approach with @Yuval's avoids "...
Is there a replacement for unistd.h for Windows (Visual C)?
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110
Try including the io.h file. It seems to be the Visual Studio's equivalent of unistd.h.
I hope...
Applying function with multiple arguments to create a new pandas column
...on:
>>> import numpy as np
>>> df = pd.DataFrame({"A": [10,20,30], "B": [20, 30, 10]})
>>> df['new_column'] = np.multiply(df['A'], df['B'])
>>> df
A B new_column
0 10 20 200
1 20 30 600
2 30 10 300
or vectorize arbitrary fun...
How to compile a static library in Linux?
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answered Apr 29 '10 at 4:10
Matthew FlaschenMatthew Flaschen
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