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What is the usefulness of `enable_shared_from_this`?
...p == q);
assert(!(p < q || q < p)); // p and q must share ownership
}
The method f() returns a valid shared_ptr, even though it had no member instance. Note that you cannot simply do this:
class Y: public enable_shared_from_this<Y>
{
public:
shared_ptr<Y> f()
{
...
django admin - add custom form fields that are not part of the model
I have a model registered in the admin site. One of its fields is a long string expression. I'd like to add custom form fields to the add/update page of this model in the admin that based on these fields values I will build the long string expression and save it in the relevant model field.
...
How can I get a file's size in C++? [duplicate]
...of the c runtime library on Windows, Mac and Linux.
long GetFileSize(std::string filename)
{
struct stat stat_buf;
int rc = stat(filename.c_str(), &stat_buf);
return rc == 0 ? stat_buf.st_size : -1;
}
or
long FdGetFileSize(int fd)
{
struct stat stat_buf;
int rc = fstat(fd...
Maximum on http header values?
...ders size exceeds that limit.
Related question: How big can a user agent string get?
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Which $_SERVER variables are safe?
...ocation, not usually a concern for web servers)
'REQUEST_METHOD' §
'QUERY_STRING'
'HTTP_ACCEPT'
'HTTP_ACCEPT_CHARSET'
'HTTP_ACCEPT_ENCODING'
'HTTP_ACCEPT_LANGUAGE'
'HTTP_CONNECTION'
'HTTP_REFERER'
'HTTP_USER_AGENT'
'AUTH_TYPE' ‖
'PHP_AUTH_DIGEST' ‖
'PHP_AUTH_USER' ‖
'PHP_AUTH_PW' ‖
'PATH_IN...
How to wait in a batch script? [duplicate]
I am trying to write a batch script and trying to wait 10 seconds between 2 function calls. The command:
6 Answers
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string.split - by multiple character delimiter
i am having trouble splitting a string in c# with a delimiter of "][".
4 Answers
4
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How are strings passed in .NET?
When I pass a string to a function, is a pointer to the string's contents passed, or is the entire string passed to the function on the stack like a struct would be?
...
How to print Boolean flag in NSLog?
...orm:
condition ? result_if_true : result_if_false
Substitute actual log strings accordingly where appropriate.
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Is it possible to GROUP BY multiple columns using MySQL?
...red Dec 3 '09 at 17:14
Joe PhillipsJoe Phillips
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