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In C, do braces act as a stack frame?
... p = d;
}
/* Can I access p[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...
Vertically align text to top within a UILabel
... This answer is unnecessarily complicated and it is using a "word around". Please see suggestion below of simply changing the vertical content hugging priority. Doesn't require any code...
– beetree
Jan 23 '15 at 1:45
...
Why isn't sizeof for a struct equal to the sum of sizeof of each member?
...and padding so that the structure comes out to an even number of bytes (or words) on your platform. For example in C on Linux, the following 3 structures:
#include "stdio.h"
struct oneInt {
int x;
};
struct twoInts {
int x;
int y;
};
struct someBits {
int x:2;
int y:6;
};
int main ...
Python “raise from” usage
...hen use raise ... from None to set __suppress_context__ to True.
In other words, Python sets a context on exceptions so you can introspect where an exception was raised, letting you see if another exception was replaced by it. You can also add a cause to an exception, making the traceback explicit ...
Class method decorator with self arguments?
...d_output + "!"
return _impl
class Foo:
@wrapper
def bar(self, word):
return word
f = Foo()
result = f.bar("kitty")
print(result)
Which will print:
kitty!
share
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improve th...
vim command to restructure/force text to 80 columns
...ers focus on limiting the width of a line when a line is split spaces into words. This solution works for very long words (DNA sequences).
– pedrosaurio
Feb 14 '18 at 7:49
1
...
Convert ArrayList to String[] array [duplicate]
...erence even if held instance doesn't have (doesn't support) them. In other words we could end up trying to use data which doesn't exist, which could lead to many problems. So to prevent such situation JVM throws exception, and stop further potentially dangerous code.
You could ask now "So why aren't...
What is scaffolding? Is it a term for a particular platform?
...
See linuxgeekoid.wordpress.com/2011/06/18/… for an elaboration of this perspective. Other uses of the term are derivative.
– Alan
Feb 19 '15 at 22:50
...
What is the difference between a heuristic and an algorithm?
...
I believe your definition of the word algorithm is too restrictive. Does the use of the word sequence implies non-parallell ? Parallell algorithms are fine and even usual nowaday. What about solving a problem using a neural network ? Or a constraint propagat...
Can a foreign key be NULL and/or duplicate?
...o the client ID is filled in but the sales rep ID might be null. In other words, usually you need the ability to have a null FK when you may not know its value at the time the data is entered, but you do know other values in the table that need to be entered. To allow nulls in an FK generally all y...