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Determining Whether a Directory is Writeable
...he directory. os.access('/path/to/folder', os.W_OK | os.X_OK) With os.W_OK by itself you can only delete the directory (and only if that directory is empty)
– fthinker
Mar 23 '12 at 17:13
...
How do you build a Singleton in Dart?
...@Andrew and @Seth): Couldn't anyone write to the top-level variable? It is by no means protected, or am I missing something?
– Tobias Ritzau
Oct 9 '12 at 19:18
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How to call Android contacts list?
...the result code is RESULT_OK.
You can get the URI of the selected contact by calling getData() on the data Intent parameter. To get the name of the selected contact you need to use that URI to create a new query and extract the name from the returned cursor.
@Override
public void onActivityResult(...
How do I tokenize a string in C++?
...ing if he could tokenize a C++ string which is of type "string" introduced by the latter.
– Vijay Kumar Kanta
Apr 19 '17 at 7:05
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Convert pem key to ssh-rsa format
...genrsa -out dummy-genrsa.pem 2048
In OpenSSL v1.0.1 genrsa is superseded by genpkey so this is the new way to do it (man genpkey):
openssl genpkey -algorithm RSA -out dummy-genpkey.pem -pkeyopt rsa_keygen_bits:2048
With ssh-keygen
ssh-keygen -t rsa -b 2048 -f dummy-ssh-keygen.pem -N '' -C "Test...
How to show “Done” button on iPhone number pad
...on is centered in the accessory view. You can position it at left or right by deleting the space on the pertinent side.
I have omitted a "Cancel" button because the default keyboard doesn't have one either. If you do want a "Cancel" button, I suggest that you instantiate it as a UIBarButtonSystemIt...
Do you use NULL or 0 (zero) for pointers in C++?
...ted to use a NULL pointer, irrespective of whether it is being interpreted by the compiler as NULL or not.
Overload of pointer and 'int' is relatively rare
The example that everybody quotes is:
void foo(int*);
void foo (int);
void bar() {
foo (NULL); // Calls 'foo(int)'
}
However, at leas...
Can two applications listen to the same port?
... socket, if the programs are designed to do so. When the socket is created by the first program, make sure the SO_REUSEADDR option is set on the socket before you bind(). However, this may not be what you want. What this does is an incoming TCP connection will be directed to one of the programs, not...
git working on two branches simultaneously
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How can I detect if a browser is blocking a popup?
...wered Feb 26 '16 at 22:49
UncaAlbyUncaAlby
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