Did you try `@compat x % UInt8`? On Tue, Aug 18, 2015 at 7:18 PM, Samuele Carcagno <sam.carca...@gmail.com> wrote:
> On 18/08/15 21:46, Yichao Yu wrote: > >> >> On Aug 18, 2015 2:54 PM, "Samuele Carcagno" <sam.carca...@gmail.com >> <mailto:sam.carca...@gmail.com>> wrote: >> > >> > I understand that if I release a new version of a package "foo" and >> put `julia 0.4` in `REQUIRE`, the package won't be updated in julia v0.3 >> installations. If, after the updated package is released, somebody tries >> to install package "foo" from julia v0.3 what happens? Will they still >> be able to install the older version of the package? >> > >> > I'm asking because I'd like to release an updated version of a >> package to make it work with julia v0.4. The changes, however, are >> incompatible with julia v0.3. I tried using @compat to work around the >> issues but couldn't figure out how to fix this deprecation warning >> without breaking v0.3 compatibility: >> > `uint8(x::Integer) is deprecated, use x % UInt8 instead` >> >> @compat UInt8(x) >> > > thanks for the suggestion but that doesn't do what I need. The problem is > that I need to write 32-bit integers into a 24-bit file format. This > requires some bit fiddling. In julia v0.3 this worked without deprecation > warnings: > > write(fid, uint8(thisSample)); > write(fid, uint8(thisSample >> 8)); > write(fid, uint8(thisSample >> 16)); > > `thisSample` is a 32 bit integer. In julia v0.4 `UInt8(x)` fails when `x` > is greater tha 2^8-1, instead the following works: > > write(fid, thisSample % UInt8); > write(fid, (thisSample >> 8) % UInt8); > write(fid, (thisSample >> 16) % UInt8); > > the problem is it doesn't work in julia v0.3 `x % @compat UInt8` gives: > `ERROR: `rem` has no method matching rem(::Int32, ::Type{Uint8})` > > > > Sam > > >> > >> > Cheers, >> > >> > Sam >> >> >
