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“Application tried to present modally an active controller”?
...trollers instantiated like so:
UIViewController* vc1 = [[UIViewController alloc] init];
UIViewController* vc2 = [[UIViewController alloc] init];
UIViewController* vc3 = [[UIViewController alloc] init];
You have added them to a tab bar like this:
UITabBarController* tabBarController = [[UITabBarC...
C++ SFINAE examples?
... in C++, here is what you get with a modern compiler : error C2466: cannot allocate an array of constant size 0
– v.oddou
Jun 16 '14 at 1:31
1
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How do I build a numpy array from a generator?
... lists. This is necessary so that space for each item can be consecutively allocated in memory. Consecutive allocation is the key feature of numpy arrays: this combined with native code implementation let operations on them execute much quicker than regular lists.
Keeping this in mind, it is techni...
How to remove empty cells in UITableView? [duplicate]
...FooterView = UIView()
Objective-C:
tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
Because the table thinks there is a footer to show, it doesn't display any cells beyond those you explicitly asked for.
Interface builder pro-tip:
If you are using a xib/Storyboard, you c...
Java maximum memory on Windows XP
I've always been able to allocate 1400 megabytes for Java SE running on 32-bit Windows XP (Java 1.4, 1.5 and 1.6).
13 Answe...
Must qualify the allocation with an enclosing instance of type GeoLocation
...No enclosing instance of type StackArrList is accessible. Must qualify the allocation with an enclosing instance of type StackArrList (e.g. x.new A() where x is an instance of StackArrList). and will not allow to make instance of Stack class
When you make the class Stack to static class Stack will ...
In C, do braces act as a stack frame?
...[0] here? */
return;
}
(In other words: is the compiler allowed to deallocate d, even if in practice most don't?).
The answer is that the compiler is allowed to deallocate d, and accessing p[0] where the comment indicates is undefined behaviour (the program is not allowed to access the inner ...
What really is a deque in STL?
...ternally uses a T** to represent the map. Each data block is a T* which is allocated with some fixed size __deque_buf_size (which depends on sizeof(T)).
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Converting NSString to NSDate (and back again)
...String = @"01-02-2010";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"dd-MM-yyyy"];
NSDate *dateFromString = [dateFormatter dateFromString:dateString];
NSDate convert to NSString:
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[d...
Efficient string concatenation in C++
...e a look at this interface:
template <class charT, class traits, class Alloc>
basic_string<charT, traits, Alloc>
operator+(const basic_string<charT, traits, Alloc>& s1,
const basic_string<charT, traits, Alloc>& s2)
You can see that a new object is returne...