Fixed-length C arrays need better handling

Originator:an00na
Number:rdar://20824596 Date Originated:05-May-2015 03:57 PM
Status:Duplicate of 11353341 (Open) Resolved:
Product:Developer Tools Product Version:Swift 1.2
Classification:Enhancement Reproducible:Not Applicable
 
Summary:
Importing fixed-length C array as tuple makes it very hard to use. More specifically, because tuple does not support direct length access and iteration, the code to use such tuple-array is very unsafe and ugly:
                let count = sizeofValue(cArray) / sizeofValue(cArray.0)
                withUnsafePointer(&cArray.0) { (p) -> Void in
                    for var i = 0; i < count; ++i {
                         // code using p[i]
                    }
                }

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