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Checking if a double (or float) is NaN in C++
...TH__ macro and switch to a different implementation in that case (e.g. use unions and bit twiddling).
– Adam Rosenfield
Mar 27 '11 at 23:45
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C++ semantics of `static const` vs `const`
...red to have external linkage; or
(3.3) — a data member of an anonymous union.
Annex C (informative) Compatibility, C.1.2
Clause 6: "basic concepts" gives the rationale why this was changed from C:
6.5 [also 10.1.7]
Change: A name of file scope that is explicitly declared const, an...
Why can't I forward-declare a class in a namespace using double colons?
...). Essentially, it must be one of class identifier;, struct identifier; or union identifier; where identifer is the common lexical definition in [lex.name]:
identifier:
identifier-nondigit
identifier identifier-nondigit
identifier digit
identifier-nondigit:
nondigit
universal-character-n...
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 ...
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
add a comment
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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
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Relation
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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:
...
Struct inheritance in C++
... important distinction, since for example, only POD structs can be part of unions.
– camh
Jun 11 '09 at 7:00
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