On Thursday, 25 April 2019 at 20:18:28 UTC, Zans wrote:
import std.stdio;
void main()
{
char[] mychars;
mychars ~= 'a';
long index = 0L;
writeln(mychars[index]);
}
Why would the code above compile perfectly on Linux (Ubuntu
16.04), however it would produce the following error on Windows
10:
source\app.d(8,21): Error: cannot implicitly convert expression
index of type long to uint
On both operating systems DMD version is 2.085.0.
The issue here is not Windows vs Linux but 32 bits vs 64 bits.
On 32 bits architectures size_t is defined as uint, long being 64
bits long, conversion from long to uint is a truncating cast
which are not allowed implicitely in D.
It is unfortunate that the D compiler on Windows is still
delivered by default as a 32 bits binary and generating 32 bits
code. I think the next release will start to deliver the compiler
as 64 bits binary and generating 64 bits code.
