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Is there a software-engineering methodology for functional programming? [closed]
... as functions instead, and conversely, representing certain functions as a union of data types instead so that you can get, e.g., serialization, tighter specification, optimization, etc.
Then, given that, you write functions over your adts such that you establish some sort of algebra -- i.e. there ...
Class type check in TypeScript
...t's just checking if a object has a certain property. This may be nice for union types so works for this specific case, but its not really doable to create a "isThingy" for everything like this. Also if both fish and bird could swim you're doomed. I'm glad I'm using Haxe which has a reliable type ...
Visual Studio support for new C / C++ standards?
...and literals. C99 math library functions. Named initializers for structs/unions. The restrict keyword. There are a ton of great C99 features that are missing from C++, and they are features that I use every day as a C programmer.
– Stephen Canon
Apr 14 '11 ...
static const vs #define
...d into which they should be packed if the enum is a member of struct/class/union), while C++11 defaults to int but can be explicitly set by the programmer
can't take the address - there isn't one as the enumeration values are effectively substituted inline at the points of usage
stronger usage restr...
Are soft deletes a good idea? [duplicate]
...iew called recycle_bin or similar that shows only deleted records (doing a union on tables that do soft deletes on their common fields)
– Neil McGuigan
Jan 29 '12 at 10:25
2
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How to add icon inside EditText view in Android ?
...lation is against the law in many countries for example in whole European Union so please be carefull :)
– Paweł Byszewski
Dec 5 '14 at 8:50
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XPath to select multiple tags
..., or is a logical operator -- it operates on two Boolean values. The XPath union operator | operates on two sets of nodes. These are quite different and there are specific use cases for each of them. Using | can solve the original problem, but it results in a longer and more complex and challenging ...
How to merge dictionaries of dictionaries?
... generators:
def mergedicts(dict1, dict2):
for k in set(dict1.keys()).union(dict2.keys()):
if k in dict1 and k in dict2:
if isinstance(dict1[k], dict) and isinstance(dict2[k], dict):
yield (k, dict(mergedicts(dict1[k], dict2[k])))
else:
...
Why doesn't Java Map extend Collection?
...the element appears in the bag).
This structure would allow intersection, union etc. of a range of "collections". Hence, the hierarchy should be:
Set
|
Relation
|
...
MySql Table Insert if not exist otherwise update
...)
and hash_id in (select id from hashes where name=[hash_name])
union
select 0, m.id, h.id, [new_value]
from hashers m cross join hashes h
where m.name=[hasher_name]
and h.name=[hash_name]) l
limit 1;
This example is cribbed from one of my databases, with the ...