[swift-dev] long double usage in swift

[Alex Blewitt]

Why not?

https://github.com/apple/swift/blob/8d9ef80304d7b36e13619ea50e6e76f3ec9221ba/test/Inputs/clang-importer-sdk/usr/include/ctypes.h#L146

> On 23 Mar 2016, at 21:29, Saleem Abdulrasool <compnerd at compnerd.org> wrote:
> 
> On Wed, Mar 23, 2016 at 2:28 PM, Alex Blewitt <alex.blewitt at gmail.com <mailto:alex.blewitt at gmail.com>> wrote:
> There’s a Float80 type, if you’re looking for an 80-bit floating point value.
> 
> Im explicitly trying to import a call from C through the clang-importer (to ensure that long doubles are imported correctly).  As such, unfortunately, I don't think that the use of Float80 is appropriate in this case.
>  
> Alex
> 
> > On 23 Mar 2016, at 21:25, Saleem Abdulrasool via swift-dev <swift-dev at swift.org <mailto:swift-dev at swift.org>> wrote:
> >
> > Hi,
> >
> > I was looking at an ABI related issue on Windows.  In trying to construct a test case, it seems that I am unable to import a declaration using a long double into swift.  I was wondering if there is something about long double usage in swift that I am unaware of.
> >
> > Inputs/abi.h:
> >
> > float fp32_call(void);
> > double fp64_call(void);
> > long double fp80_call(void);
> >
> > Inputs/module.map:
> >
> > module abi {
> >   header "abi.h"
> > }
> >
> > test.swift:
> >
> > %swift -I Inputs -parse %s
> > import abi
> >
> > @inline(never)
> > func blackhole<T>(t : T) { }
> >
> > func test_floating_point() {
> > }
> >
> > Thanks!
> >
> > --
> > Saleem Abdulrasool
> > compnerd (at) compnerd (dot) org
> > _______________________________________________
> > swift-dev mailing list
> > swift-dev at swift.org <mailto:swift-dev at swift.org>
> > https://lists.swift.org/mailman/listinfo/swift-dev <https://lists.swift.org/mailman/listinfo/swift-dev>
> 
> 
> 
> 
> -- 
> Saleem Abdulrasool
> compnerd (at) compnerd (dot) org

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