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How to get error message when ifstream open fails
...strerror': This function or variable may be unsafe. Consider using strerror_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1> C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\string.h(168) : see declaration of 'strerror'
...
Differences between numpy.random and random.random in Python
...te
In [2]: N = 1000000
In [3]: %timeit samples = [normalvariate(0, 1) for _ in xrange(N)]
1 loop, best of 3: 963 ms per loop
In [4]: %timeit np.random.normal(size=N)
10 loops, best of 3: 38.5 ms per loop
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...
create a trusted self-signed SSL cert for localhost (for use with Express/Node)
...following content (credit goes to: @Anshul)
req.cnf :
[req]
distinguished_name = req_distinguished_name
x509_extensions = v3_req
prompt = no
[req_distinguished_name]
C = Country initials like US, RO, GE
ST = State
L = Location
O = Organization Name
OU = Organizational Unit
CN = www.localhost.com
...
How to change language settings in R
...setting, such as for example
defaults write org.R-project.R force.LANG en_US.UTF-8
when run in Terminal it will enforce US-english setting regardless of the system
setting. If you don't know what Terminal is you can use this R command
instead:
system("defaults write org.R-project.R fo...
Is it safe to remove selected keys from map within a range loop?
...r(1024)
m[k] = GenerateRandStr(1024*1024)
for k2, _ := range m {
delete(m, k2)
break
}
}
}()
osSignals := make(chan os.Signal, 1)
signal.Notify(osSignals, os.Interrupt)
for {
select {
case &...
Nginx reverse proxy causing 504 Gateway Timeout
I am using Nginx as a reverse proxy that takes requests then does a proxy_pass to get the actual web application from the upstream server running on port 8001.
...
python requests file upload
...
If upload_file is meant to be the file, use:
files = {'upload_file': open('file.txt','rb')}
values = {'DB': 'photcat', 'OUT': 'csv', 'SHORT': 'short'}
r = requests.post(url, files=files, data=values)
and requests will send a multi...
Declaring a custom android UI element using XML
... //Use a
Log.i("test",a.getString(
R.styleable.MyCustomView_android_text));
Log.i("test",""+a.getColor(
R.styleable.MyCustomView_android_textColor, Color.BLACK));
Log.i("test",a.getString(
R.styleable.MyCustomView_extraInformation));
//Don't forget this...
How do I get the type of a variable?
...her in code with something like gcc.gnu.org/onlinedocs/libstdc++/manual/ext_demangling.html, with command line utilities such as c++filt, or with any of various online demanglers such as demangler.com.
– cincodenada
Dec 11 '18 at 19:14
...
How to stage only part of a new file with git?
...business seems overly complicated. How about this instead:
git add -N new_file
git add -i
From git help add:
-N, --intent-to-add
Record only the fact that the path will be added later. An entry
for the path is placed in the index with no content. This is useful
for, among other th...