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How to initialize array to 0 in C?
...are automatically initialized to zero. If you have simply
char ZEROARRAY[1024];
at global scope it will be all zeros at runtime. But actually there is a shorthand syntax if you had a local array. If an array is partially initialized, elements that are not initialized receive the value 0 of the ap...
Is there a ternary conditional operator in T-SQL?
...ase:
select *
from table
where isExternal = case @type when 2 then 1 else 0 end
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C++ equivalent of java's instanceof
...
202
Try using:
if(NewType* v = dynamic_cast<NewType*>(old)) {
// old was safely casted to...
?: operator (the 'Elvis operator') in PHP
...will leave foo unchanged.
Some more examples:
<?php
var_dump(5 ?: 0); // 5
var_dump(false ?: 0); // 0
var_dump(null ?: 'foo'); // 'foo'
var_dump(true ?: 123); // true
var_dump('rock' ?: 'roll'); // 'rock'
?>
By the way, it's called the Elvis operator.
...
Select statement to find duplicates on certain fields
...
840
To get the list of fields for which there are multiple records, you can use..
select field1,fiel...
Unique combination of all elements from two (or more) vectors
...aybe what you are after
> expand.grid(a,b)
Var1 Var2
1 ABC 2012-05-01
2 DEF 2012-05-01
3 GHI 2012-05-01
4 ABC 2012-05-02
5 DEF 2012-05-02
6 GHI 2012-05-02
7 ABC 2012-05-03
8 DEF 2012-05-03
9 GHI 2012-05-03
10 ABC 2012-05-04
11 DEF 2012-05-04
12 GHI 2012-05-04
13 AB...
Select random lines from a file
... |
edited Jun 16 '16 at 20:48
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How do I parse JSON with Objective-C?
...
With the perspective of the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for exampl...
Determine function name from within that function (without using traceback)
...
208
Python doesn't have a feature to access the function or its name within the function itself. It...
How can I initialize an ArrayList with all zeroes in Java?
... the initial number of elements in the list).
To initialize an list with 60 zeros you do:
List<Integer> list = new ArrayList<Integer>(Collections.nCopies(60, 0));
If you want to create a list with 60 different objects, you could use the Stream API with a Supplier as follows:
List&...