http://d.puremagic.com/issues/show_bug.cgi?id=6869
Summary: Disallow array to pointer cast Product: D Version: D2 Platform: All OS/Version: All Status: NEW Keywords: accepts-invalid Severity: normal Priority: P2 Component: DMD AssignedTo: nob...@puremagic.com ReportedBy: bearophile_h...@eml.cc --- Comment #0 from bearophile_h...@eml.cc 2011-10-31 12:22:10 PDT --- This is a spinoff of bug 3990 In DMD 2.056 this code compiles: void main() { int[] a1 = [5, 4, 3]; int* p1 = cast(int*)a1; // no compile error here } Similar code using user-created struct doesn't compile: struct Foo { int* p; size_t n; } void main() { Foo f; auto x = cast(int*)f; // compile error here } I don't see the need to accept this cast, because allowing the array to pointer cast means introducing/leaving an useless special case, and there in practice this special case is not useful because arrays have the ptr property: struct Foo { int* p; size_t n; } void main() { Foo f; auto x = f.ptr; // OK } So I think cast(int*)a1 should be forbidden. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------