Bug 256 – Implicit unsigned to signed doesn't always work.

According to the D spec, a signed type can be implicitly converted to its equivalent unsigned type (see Types, Implicit Conversions). Testing shows that that isn't always true. --------------------------- void main () { ubyte byteValue = cast(byte)-1; ushort shortValue = cast(short)-1; uint intValue = cast(int)-1; ulong longValue = cast(long)-1; } --------------------------- C:\programs>dmd test.d test.d(2): cannot implicitly convert expression (cast(byte)-1) of type byte to u byte test.d(3): cannot implicitly convert expression (cast(short)-1) of type short to ushort --------------------------- As you can see, only the uint and ulong parts can be successfully compiled. Casting explicitly to unsigned type still works.

Fixed DMD 0.164 (revised documentation to reflect intended behavior)

dlang-community/dfmt pull request #446 "Fix: Issue 256 "named member struct initialisers"" was merged into master: - ac61efe7670acfa06cee2edaf61d4f7c368e4ce7 by sobaya: Fix: Issue 256 "named member struct initialisers" - 1024f167154aa37e754fa46abad84a528ea9f99e by sobaya: Add: struct fields to the test of issue 256 https://github.com/dlang-community/dfmt/pull/446