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Convert from enum ordinal to enum type
...t... you know - the C programmer inside me screams in pain seeing that you allocate a full-blown HashMap and perform lookups inside it all of it JUST to essentially manage 4 constants: spades, hearts, diamonds and clubs! A C programmer would allocate 1 byte for each: 'const char CLUBS=0;' etc... Ye...
How do I read an entire file into a std::string in C++?
... a large file this would be a significant penalty, perhaps even causing an allocation failure .
– M.M
Feb 6 '16 at 12:08
...
Replacement for deprecated sizeWithFont: in iOS 7?
...*font = ...;
NSAttributedString *attributedText =
[[NSAttributedString alloc] initWithString:text
attributes:@{NSFontAttributeName: font}];
CGRect rect = [attributedText boundingRectWithSize:(CGSize){width, CGFLOAT_MAX}
...
What are transparent comparators?
...lates:
template<typename T, typename Cmp = std::less<>, typename Alloc = std::allocator<T>>
using set = std::set<T, Cmp, Alloc>;
The name is_transparent comes from STL's N3421 which added the "diamond operators" to C++14. A "transparent functor" is one which accepts any ...
How do you attach and detach from Docker's process?
..."docker attach" to attach the container:
Since "docker attach" will not allocate a new tty, but reuse the original running tty, so if you run exit command, it will cause the running container exit:
# docker attach 91262536f7c9
exit
exit
# docker ps -a
CONTAINER ID IMAGE CO...
Where are static methods and static variables stored in Java?
... is stored in the permgen space, any referenced object will most likely be allocated on the heap. This might add some information: stackoverflow.com/questions/3800444/…
– Thomas
Dec 5 '11 at 16:01
...
Where is the itoa function in Linux?
...
Following function allocates just enough memory to keep string representation of the given number and then writes the string representation into this area using standard sprintf method.
char *itoa(long n)
{
int len = n==0 ? 1 : floor(log10...
Log all requests from the python-requests module
...
Strangely enough, I do not see the access_token in the OAuth request. Linkedin is complaining about unauthorized request, and I want to verify whether the library that I am using (rauth on top of requests) is sending that token with the request. I was expecting to se...
Is it possible to disable floating headers in UITableView with UITableViewStylePlain?
...
Objective-C:
CGFloat dummyViewHeight = 40;
UIView *dummyView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.tableView.bounds.size.width, dummyViewHeight)];
self.tableView.tableHeaderView = dummyView;
self.tableView.contentInset = UIEdgeInsetsMake(-dummyViewHeight, 0, 0, 0);
Swift:
let d...
How do you determine the ideal buffer size when using FileInputStream?
...would be the best performer because we let the system manage File System , allocation units and HDD at will.
In practice you are fortunate to know the file sizes in advance, just use the average file size rounded up to 4K (default allocation unit on NTFS).
And best of all : create a benchmark to tes...