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Sequence-zip function for c++11?
...ike the c++ stdlib.
template <typename Iterator>
void advance_all (Iterator & iterator) {
++iterator;
}
template <typename Iterator, typename ... Iterators>
void advance_all (Iterator & iterator, Iterators& ... iterators) {
++iterator;
a...
C++ new int[0] — will it allocate memory?
... When the value of the expression in a direct-new-declarator is zero, the allocation function is called to allocate an array with no elements.
From 3.7.3.1/2
The effect of dereferencing a pointer returned as a request for zero size is undefined.
Also
Even if the size of the space reques...
Set attribute without value
... answered Oct 31 '12 at 13:37
Callum McLeanCallum McLean
1,20177 silver badges1212 bronze badges
...
Byte array to image conversion
...
AAAh thanks, Finally a good answer. Why so many answers with memory stream, it cause me so much problem. thanks a lot !
– Julian50
Jun 30 '15 at 11:35
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How to make code wait while calling asynchronous calls like Ajax [duplicate]
...
Use callbacks. Something like this should work based on your sample code.
function someFunc() {
callAjaxfunc(function() {
console.log('Pass2');
});
}
function callAjaxfunc(callback) {
//All ajax calls called here
o...
Determine if a function exists in bash
..., built-in function, external command, or just not defined. Example:
$ LC_ALL=C type foo
bash: type: foo: not found
$ LC_ALL=C type ls
ls is aliased to `ls --color=auto'
$ which type
$ LC_ALL=C type type
type is a shell builtin
$ LC_ALL=C type -t rvm
function
$ if [ -n "$(LC_ALL=C type -t rvm)...
What is the difference between pluck and collect in Rails?
...
When you do:
User.first.gifts.collect(&:id)
You have objects with all fields loaded and you simply get the id thanks to the method based on Enumerable.
So:
if you only need the id with Rails 4, use ids: User.first.gifts.ids
if you only need some fields with Rails 4, use pluck: User.first...
How can I split a text into sentences?
...sentence_terminator in sentence_terminators:
t_indices = list(find_all(paragraph, sentence_terminator))
possible_endings.extend(([] if not len(t_indices) else [[i, len(sentence_terminator)] for i in t_indices]))
for contraction in contractions:
c_indices = list(find_all(p...
What is Double Brace initialization in Java?
...as an implicit this pointer to the surrounding outer class. Whilst not normally a problem, it can cause grief in some circumstances e.g. when serialising or garbage collecting, and it's worth being aware of this.
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Array Length in Java
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It contains the allocated size, 10. The unassigned indexes will contain the default value which is 0 for int.
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