Bug 16261 – dmd -profile & nativeToLittleEndian() --> wrong result

When the -profile flag is given to dmd, a call to nativeToLittleEndian() gives wrong result. The following code works without -profile: import std.stdio; import std.bitmanip; int main(string[] argv) { int value = 42; auto res = nativeToLittleEndian(value); writeln("nativeToLittleEndian(", value, ") = ", res); // expected output: nativeToLittleEndian(42) = [42, 0, 0, 0] return 0; } but with -profile it prints what seems to be garbage bytes, even different values each time the program is executed. The version of the compiler was "DMD64 D Compiler v2.071.1", and I have also built DMD from source today getting the same problem. I also tried the example code in the documentation of nativeToLittleEndian() at dlang.org. There too, when I build with -profile, the code does not work (gives an assert).

nativeToBigEndian aslo erro! import std.stdio; import std.bitmanip; enum ushort type = 100; void main() { ubyte[2] udt = nativeToBigEndian(type); writeln("100 as nativeToBigEndian : ", udt); ushort uy = bigEndianToNative!(ushort)(udt); writeln("uy = : ", uy); } the rulst: 100 as nativeToBigEndian : [13, 21] uy = : 3349

I just seen, that this is attributed as Mac OS X. Is this a Max OS X only bug? If yes, I'm sorry, we should reopen it...