numbers - Difference between double and DOUBLE in C++ -

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i wondered what's difference between double , double (from #include <windows>) in c++. there's lot of question in java, that's totally different language.

is double windows wrapper class double, or else? have different advantages?

double c++ keyword while double implementation defined typedef.

for example if include <windows.h> in project in ms vc++ ide shows double defined in wtypesbase.h like:

typedef double double;

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