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Convenient C++ struct initialisation
... MSVC.
#include <iostream>
#include <filesystem>
struct hello_world {
const char* hello;
const char* world;
};
int main ()
{
hello_world hw = {
.hello = "hello, ",
.world = "world!"
};
std::cout << hw.hello << hw.world << std::en...
How to split long commands over multiple lines in PowerShell
...loy.exe" `
-verb:sync `
-source:contentPath="c:\workspace\xxx\master\Build\_PublishedWebsites\xxx.Web" `
-dest:contentPath="c:\websites\xxx\wwwroot,computerName=192.168.1.1,username=administrator,password=xxx"
White space matters. The required format is Space`Enter.
...
What Every Programmer Should Know About Memory?
...fect of memory/L3 latency on single-threaded bandwidth: bandwidth <= max_concurrency / latency, and this is actually the primary bottleneck for single-threaded bandwidth on a modern many-core CPU like a Xeon. But a quad-core Skylake desktop can come close to maxing out DRAM bandwidth with a singl...
Android studio - Failed to find target android-18
...under SDK 18. No need to hack the manifest files.
Fixed by:
export ANDROID_HOME= pathtobundle/adt-bundle-linux-x86_64-20130729/sdk
If you don't have the ADT installed, and just want the SDK, it seems like a good solution is to install everything and then point Android Studio to the just the packag...
cartesian product in pandas
...
Use pd.MultiIndex.from_product as an index in an otherwise empty dataframe, then reset its index, and you're done.
a = [1, 2, 3]
b = ["a", "b", "c"]
index = pd.MultiIndex.from_product([a, b], names = ["a", "b"])
pd.DataFrame(index = index).res...
Add column with constant value to pandas dataframe [duplicate]
...le times.
# Wrong
df['new'] = [[]] * len(df)
# Right
df['new'] = [[] for _ in range(len(df))]
Generating a copy: df.assign(new=0)
If you need a copy instead, use DataFrame.assign:
df.assign(new='y')
A B C new
0 x x x y
1 x x x y
2 x x x y
3 x x x y
And, if you ne...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...ol OLE drag and drop target. Only necessary if you don't define GRIDCONTROL_NO_DRAGDROP in gridctrl.h
Titletip.cpp, Titletip.h
Titletips for cells, from Zafir Anjum. Only necessary if you don't define GRIDCONTROL_NO_TITLETIPS in gridctrl.h
Structure
The grid is based on...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...ol OLE drag and drop target. Only necessary if you don't define GRIDCONTROL_NO_DRAGDROP in gridctrl.h
Titletip.cpp, Titletip.h
Titletips for cells, from Zafir Anjum. Only necessary if you don't define GRIDCONTROL_NO_TITLETIPS in gridctrl.h
Structure
The grid is based on...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...ol OLE drag and drop target. Only necessary if you don't define GRIDCONTROL_NO_DRAGDROP in gridctrl.h
Titletip.cpp, Titletip.h
Titletips for cells, from Zafir Anjum. Only necessary if you don't define GRIDCONTROL_NO_TITLETIPS in gridctrl.h
Structure
The grid is based on...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...ol OLE drag and drop target. Only necessary if you don't define GRIDCONTROL_NO_DRAGDROP in gridctrl.h
Titletip.cpp, Titletip.h
Titletips for cells, from Zafir Anjum. Only necessary if you don't define GRIDCONTROL_NO_TITLETIPS in gridctrl.h
Structure
The grid is based on...