Mercurial > projects > ldc
view tests/mini/assign.d @ 648:8d850fa25713
Fix VarDecls for tuples. Closes #99.
I've implemented it this way since it doesn't require any changes in the
frontend. However, I think having TypeTuple expressed as LLVM struct types
would make much more sense and open the door to tuple lvalues.
author | Christian Kamm <kamm incasoftware de> |
---|---|
date | Sun, 05 Oct 2008 11:47:47 +0200 |
parents | 1bb99290e03a |
children |
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module assign; // this is taken from std.intrinsic from gdc int mybtc(uint *p, uint bitnum) { uint * q = p + (bitnum / (uint.sizeof*8)); uint mask = 1 << (bitnum & ((uint.sizeof*8) - 1)); int result = *q & mask; *q ^= mask; return result ? -1 : 0; } void main() { uint i = 0xFFFF_FFFF; int r = mybtc(&i, 31); assert(r); assert(i == 0x7FFF_FFFF); r = mybtc(&i, 31); assert(!r); assert(i == 0xFFFF_FFFF); }