On 11/21/14 6:03 AM, ketmar via Digitalmars-d wrote:
On Thu, 20 Nov 2014 13:28:37 -0800
Walter Bright via Digitalmars-d <digitalmars-d@puremagic.com> wrote:
On 11/20/2014 7:52 AM, H. S. Teoh via Digitalmars-d wrote:
What *could* be improved, is the prevention of obvious mistakes in
*mixing* signed and unsigned types. Right now, D allows code like the
following with no warning:
uint x;
int y;
auto z = x - y;
BTW, this one is the same in essence as an actual bug that I fixed in
druntime earlier this year, so downplaying it as a mistake people make
'cos they confound computer math with math math is fallacious.
What about:
uint x;
auto z = x - 1;
?
here z must be `long`. and for `ulong` compiler must emit error.
Would you agree that that would break a substantial amount of correct D
code? -- Andrei
